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    Tytuł:
    Metody szacowania szkod i uszkodzen wyrzadzanych przez zwierzyne w lasach
    Autorzy:
    Miscicki, S
    Powiązania:
    https://bibliotekanauki.pl/articles/811895.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    szacowanie szkod
    zwierzeta lowne
    lowiectwo
    lesnictwo
    szkody lowieckie
    metoda SMOKUZ
    interakcja las-ssaki roslinozerne
    Źródło:
    Sylwan; 1998, 142, 04; 73-82
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zależności między przyrostem miąższości a barwą korony na lotniczych zdjęciach spektrostrefowych z rejonu słabych uszkodzeń przemysłowych drzewostanów
    Relationship between volume increment and colour of pine crowns on air spectro-zonal photos from the region of weak industrial damage in forest stands
    Autorzy:
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/818244.pdf
    Data publikacji:
    1981
    Wydawca:
    Polskie Towarzystwo Leśne
    Źródło:
    Sylwan; 1981, 125, 05
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Higher education forestry programs implemented at the Faculty of Forestry, Warsaw University of Life Sciences-SGGW
    Programy leśnych studiów wyższych realizowane na Wydziale Leśnym SGGW w Warszawie
    Autorzy:
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/881922.pdf
    Data publikacji:
    2012
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
    Źródło:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2012, 14, 2[31]
    1509-1414
    Pojawia się w:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamika naturalnych faz rozwojowych drzewostanów w Białowieskim Parku Narodowym
    Dynamics of the natural development phases of stands in the Bialowieski National Park
    Autorzy:
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008733.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    parki narodowe
    Bialowieski Park Narodowy
    drzewostany
    las naturalny
    fazy rozwojowe
    zasobnosc drzewostanu
    zageszczenie drzew
    odnowienia lasu
    przyrost miazszosci
    przyrost biezacy
    dynamika drzewostanu
    natural forest
    regeneration
    sample plot
    standing volume
    change
    Opis:
    The aim of the research was to determine the current changes occurring in the natural forest using the classification based on the natural phases of stand development. The oldest part of the Białowieski National Park, formerly known as the Strict Reserve, was the object of the study. Material was collected from temporary sample plots (460 ones both in 1995 and 2005) and 160 permanent sample plots (in the years 2000, 2002 and 2004). Leibundgut’s classification was used to determine the natural development phases. All of them occurred in the Białowieski National Park in variable proportions, and this structure changed during the study period. They differed in terms of standing volume, tree density, total tree height of regeneration, current volume increment, losses and changes in standing volume. The regeneration of stands preceded in four different ways – in open areas, under the overstory of reduced closure, in small gaps or continuously when replacing separate dead trees.
    Źródło:
    Sylwan; 2012, 156, 08; 616-626
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pomiar zapasu grubizny z wykorzystaniem zdjęć lotniczych
    Inventory of merchantable timber volume using aerial photography
    Autorzy:
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1012035.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    inwentaryzacja
    zapas grubizny
    drzewostany
    lesnictwo
    powierzchnie probne
    zdjecia lotnicze
    pomiary
    growing stock
    aerial photography
    inventory
    permanent sample plot
    airphoto sample plot
    two−phase
    method
    Opis:
    Inventory of the growing stock in the territory of the Milicz Forest District was made using the combined, two−phase method. 1980 sample plots were measured on aerial photographs that constituted Phase I of the inventory. Phase II sampling consisted of 267 ground (permanent) plots and corresponding airphoto plots depending on their location in the photograph. In the airphoto sample plots, the following characteristics were measured (or controlled): tree height and age, degree of crown cover, species composition. Taking into consideration the relationship between the results of standing volume measurements on ground sample plots and stand characteristics on airphotos, the growing stock in age sub−classes and in the entire Forest District was calculated. Using aerial photography in forest survey and growing stock inventory, the cost of forest management planning operations is likely to be comparable to the cost of such operations performed in the traditional way.
    Źródło:
    Sylwan; 2009, 153, 06; 373-385
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Forest high education programs implemented at Forest Faculties in selected Western and North European countries
    Programy leśnych studiów wyższych realizowane na wydziałach leśnych w wybranych krajach Europy Zachodniej i Północnej
    Autorzy:
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/882751.pdf
    Data publikacji:
    2012
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
    Źródło:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2012, 14, 2[31]
    1509-1414
    Pojawia się w:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wstępne badania nad wykorzystaniem szacunków w statystycznej metodzie inwentaryzacji zapasu drzewostanów
    Predvaritel'nye issledovanija ispol'zovanija taksacii v statisticheskom metode inventariizacii zapasa nasazhdenijj
    Introductory studies on using taxations in statistical method of inventory of stand volume
    Autorzy:
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/814845.pdf
    Data publikacji:
    1988
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    inwentaryzacja drzewostanow
    zapas drzewostanu
    szacowanie
    Źródło:
    Sylwan; 1988, 132, 02
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wnioski z Konferencji naukowo-technicznej, pt.: Urzadzanie lasu podstawa zrownowazonej gospodarki lesnej [Waplewo 13-14 listopada 1997 r.]
    Autorzy:
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/817140.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Waplewo konferencja
    konferencje
    lesnictwo
    urzadzanie lasu
    Źródło:
    Sylwan; 1998, 142, 07; 47-52
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Poszukiwanie optymalnej wielkości losowej powierzchni próbnej, dla potrzeb inwentaryzacji uszkodzeń spowodowanych przez zwierzynę płową w drzewostanach I klasy wieku
    Search for the opimum size and random sample plot for the needs of inventory of damage caused by deer in stands of 1st age class
    Autorzy:
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/817180.pdf
    Data publikacji:
    1984
    Wydawca:
    Polskie Towarzystwo Leśne
    Źródło:
    Sylwan; 1984, 128, 11
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Określenie przy pomocy krzywej równowagi pożądanej struktury liczby drzew w lesie różnowiekowym
    Determination of the desirable tree abundance pattern in the uneven-aged forest using the equilibrium curve
    Autorzy:
    Kweczlich, I.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1019275.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Roztoczanski Park Narodowy
    krzywa rownowagi
    Abies
    rezerwaty przyrody
    buk
    lesnictwo
    model rownowagi dla lasu
    Fagus
    drzewostany roznowiekowe
    rezerwat Bukowa Gora
    obliczenia
    urzadzanie lasu
    jodla
    struktura drzew
    equilibrium curve
    tree density
    forest regeneration
    strict protection
    selection forest
    fir
    beech
    bukowa góra
    roztoczański national park
    Opis:
    The theoretical tree density in a stand was calculated using an equilibrium curve model. The Bukowa Góra forest (Roztoczański National Park) placed under strict protection was the object of the study. Calculations were made separately for the main species − fir and beech. The data on tree mortality rate and their diameter growth (or height in the case of low trees) collected in 1991, 1996 and 2001 on permanent sample plots were used. The correspondence between the actual and model tree density curves in diameter classes was confirmed only in the case of firs from the upper layer of stands. The shortage of firs (in comparison with the model data) and the excess of beeches in the regeneration layer in respect of thin and moderately thick DBH were confirmed by gradual changes in tree−species composition between 1991 and 2001.
    Źródło:
    Sylwan; 2006, 150, 03; 17-30
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kolej rębu drzewostanów sosnowych według kryteriów ekonomicznych
    Rotation age of pine stands on the basis of economic criteria
    Autorzy:
    Bednarski, K.
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/972950.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    pozyskiwanie drewna
    drzewostany sosnowe
    kryteria ekonomiczne
    leśnictwo
    gospodarstwa zrębowe
    kolej rębu
    final cut
    forest habitat type
    income
    maturity
    value
    Opis:
    There is a lack of an acceptable and practical method for calculating the optimal moment at which a forest stand is considered ready for felling. The aim of the research was to: (1) develop a concept for the calculation of the rotation age for forest stands based on economic criteria and (2) develop a methodology for obtaining and processing empirical data necessary for such calculation. It is assumed that stands are felled at the age affecting the age structure (area of age classes) of a forest in such a way that the difference between revenues from the sale of timber harvested in inter−mediate cuts and final cuts and the costs of timber harvest, silvicultural management, forest protection and administration is the largest. The developed method of calculating the rotation age was tested on the example of three Scots pine forests under the clear−cutting system representing typical forest habitats. The collected empirical material consisted of (1) own measurement data used to determine the value of the growing stock, and (2) data from the State Forests Information System used to determine the management costs, timber prices and the volume of timber harvested from intermediate cuts. These data helped to calculate the relationship between the income from a forest (including: revenues from the final and intermediate cuts, costs of forest management as well as timber harvesting and extraction) and the rotation age. The highest net income was when the rotation age was 108−125 years. The more fertile habitat, the shorter was the rotation age. The proposed methodology can be treated as a useful tool for the calculation of rotation age related to forest management in Poland. The dependence of income from a forest on the rotation age can be used to calculate losses that may arise when other than an optimal rotation age is applied.
    Źródło:
    Sylwan; 2016, 160, 03; 197-206
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sąsiedztwo i następstwo gatunków drzew w Białowieskim Parku Narodowym
    Neighbourhood and succession of tree species in the Bialowieza National Park
    Autorzy:
    Gazda, A.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/986644.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    parki narodowe
    Bialowieski Park Narodowy
    lasy
    drzewa lesne
    gatunki roslin
    wspolwystepowanie
    sasiedztwo roslin
    nastepstwo roslin
    warstwa macierzysta
    warstwa odnowienia
    suma miazszosci drzew
    suma wysokosci drzew
    analiza kanoniczna
    regresja wieloraka
    avoidance
    canonical analysis
    co−occurrence
    life strategy
    overstorey
    regeneration layer
    Opis:
    The diversity and sustainability of species composition are important topic of forest research. The possibility to observe the coexistence of tree species in a given forest patch and their succession in the next generation is limited because there are few forests unaffected by management activities. For this reason, the study was conducted in the oldest part of the Białowieża National Park, called Strict Reserve. The purpose of the research was to determine the relationship between the quantity of individual tree species in the overstorey (the standing volume of trees with the diameter at breast height d8 cm) and regeneration layer (the total height of trees with the diameter at breast height d8 cm or height h1.3 m) as well as the relationships between those stand layers. Multiple regression and canonical analysis were used to determine the relationships between 12 tree species (tab. 1). The research material was the results of measurements of 920 concentric sample plots conducted in 1995 and 2005. In the overstorey, the correlation coefficient between the standing volume of a given tree species on sample plots and the standing volume of other tree species assumed for each species both significant positive values (species ‘co−occurrence'), significant negative values (species ‘avoidance’) and close to zero values (fig. 1). The same was true for the regeneration layer (fig. 2). In eight cases the correlation between the total height of trees of a given species in the regeneration layer and the standing volume of trees from the overstorey showed the highest positive values when referred to the ‘regeneration−overstorey' relationship of the same species (fig. 3). The same referred to the ‘overstorey−regeneration' relationship (fig. 4). Eight of the canonical variables turned out to be significant (tab. 2). For the first canonical variable, standing volume of hornbeam in the overstorey (Gb_m) showed the highest absolute value of the loading factor in the first dataset, while the variable the total height of hornbeam trees in the regeneration layer (Gb_o) – in the other dataset (fig. 5). The total redundancy was 20.7%, which means that such part of the variance of the total height of individual tree species in the regeneration layer could be explained by their standing volume in the overstorey. The sequence of tree generations understood as the relationship between species composition of the regeneration and overstorey layers was associated with life strategies of tree species.
    Źródło:
    Sylwan; 2018, 162, 03; 209-219
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zależność wybranych cech drzewostanów od położenia nad poziomem morza na przykładzie Parku Narodowego Gór Stołowych
    Dependence of selected stand characteristics on the elevation on the example of the Stolowe Mountains National Park
    Autorzy:
    Miścicki, S.
    Szneidrowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989003.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy gorskie
    Park Narodowy Gor Stolowych
    dynamika drzewostanu
    miazszosc drzew
    miazszosc drewna
    zasobnosc drzewostanu
    zageszczenie drzew
    przyrost miazszosci
    czynniki siedliska
    wysokosc nad poziomem morza
    current volume increment
    elevation zone
    forest renewal
    net changes in standing volume
    tree density
    Opis:
    The elevation is used to illustrate the differences in the structure and growth of mountain forests. The aim of the study was to determine (1) whether the characteristics used to describe the condition and structure of forest stands under protection status (volume of merchantable timber, tree density, total height of trees in the regeneration layer, volume of dead stems, current annual volume increment, volume of dead trees, periodic changes in standing volume) change at the same rate along with the elevation, and (2) whether in mountains without upper montane zone, the values of the selected characteristics of stands located in the highest elevation zone decrease at a low rate with elevation and are comparable to the stands at the same elevation in higher mountains ranges. The study was located at an elevation of 400−909 m a.s.l. in the Stołowe Mountains National Park (PNGS; SW Poland). We used data from the measurements performed in 2009 and 2014 on 358 permanent sample plots. Plots were assigned to one of five elevation zones of 100 m a.s.l. We assumed that the characteristic value decreased with the increase in the elevation, and that such change was the same for all stand characteristics. This hypothesis was verified using the ANOVA for the repeated samples. The calculations were based on standardized values of the characteristics measured on individual sample plots. The higher above sea level the plot was located, the greater share of spruce in the stand (fig. 1). The standing volume (fig. 2), trees density (fig. 3) and current annual volume increment (fig. 6) decreased with elevation, while the volume of dead stems (fig. 4) increased. The net changes in standing volume (fig. 8) were the smallest in the stands located at the lowest and at the highest zone (400−499 and 800−909 m a.s.l.). No significant relationship was found between the total height of trees in the regeneration layer (fig. 5) or the volume of dead trees in the period 2009−2014 (fig. 7) and the elevation. Individual characteristics differed in the rate of changes of their values with elevation (fig. 9). The structure of stands growing at the highest elevation was the most variable. These stands were rather a substitute for the upper montane zone forests. The rate of the observed decrease of the volume of merchantable timber, tree density and current volume increment in the stands of PNGS was higher than in other forests in the Polish mountains.
    Źródło:
    Sylwan; 2017, 161, 02; 131-141
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prognoza zmian składu gatunkowego drzewostanów Białowieskiego Parku Narodowego
    Forecast of changes in the tree species composition of forest stands in the Bialowieza National Park
    Autorzy:
    Gazda, A.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/989230.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Bialowieski Park Narodowy
    drzewostany
    sklad gatunkowy
    dorost
    ubytki
    miazszosc drzew
    przyrost miazszosci
    zmiany skladu gatunkowego
    prognozy
    increment
    ingrowth
    hornbeam
    mortality
    size−class model
    strict protection
    volume
    Opis:
    The studies initiated by Włoczewski in 1936 revealed changes in the species composition of forest stands in the Białowieża National Park. This led to the question about what these changes would be in the future. The aim of our study was to predict changes in the volume of tree species in the so called Strict Reserve in the Białowieża National Park over the period of 40 years. A size−class growth model was developed for this purpose. The average merchantable timber volume for each of the eleven taxa was calculated for the successive 10−year intervals, and the increase in standing volume as well as the volume of tree loss (mortality) and ingrowth were calculated for these intervals. The empirical material was taken from the permanent and temporary sample plots. The permanent plots (160) were measured in 2000, 2002, 2004 and 2011. The empirical data were used to determine, separately for each species, the relationship between trees dbh and mortality (fig. 1), diameter growth (fig. 2) or the rate of saplings (height of 0.3−1.3 m) growth into the first dbh class (0.1−1.9 cm). The temporary sample plots (460) were measured in 1995 and 2005, and the data were used to validate the size−class growth model and predict timber volume in the period 1995−2005 (tab.). The results of the validation may indicate significant changes in standing volume for the majority of tree species in the period 2005−2045 (fig. 3). In 2045, hornbeam will dominate. The volume increment in the period 2005−2045 will remain at almost the same level, the volume of tree loss will decrease and the volume of ingrowth will slightly increase, beginning from 2015 (fig. 4). Only five taxa will have a significant share in the ingrowth throughout the period 2005−2045, of which approx. 85% will be hornbeam in the period 2035−2045 (fig. 5). The observed changes in the species composition of forest stands in the Białowieża National Park may be the result of global, regional as well as local factors such as the pressure of herbivorous ungulates on young trees. Anticipating changes in the structure of forest stands may be useful in planning the protection of forest areas by reducing the impact of local factors on forest stands (regeneration) in an indirect way.
    Źródło:
    Sylwan; 2016, 160, 04; 309-319
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring uszkodzeń spowodowanych przez jeleniowate w młodych drzewostanach i odnowieniach Gorczańskiego Parku Narodowego
    Monitoring of the deer-related damage to the young stands and regeneration in the Gorczanski National Park
    Autorzy:
    Miścicki, S.
    Żurek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/989815.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    Gorczanski Park Narodowy
    drzewostany mlode
    odnowienia lasu
    odnowienia podokapowe
    szkody w lesie
    uszkodzenia drzew
    szkody lowieckie
    jeleniowate
    monitoring
    bark−stripping
    browsing
    district
    impact
    protection
    stem
    terminal shoot
    Opis:
    Assessment of the impact of large herbivores on young generation of trees in the protected forests can support decisions about whether to intervene in natural ecosystems (e.g. individual tree protection, animal culling) or not. A study on the condition of forest regeneration, including the assessment of the damage caused by deer, was performed in the Gorczański National Park (GNP; southern Poland) in 1993 for the first time. The inventory was repeated in 1996 and 2011 on the same 415 concentric permanent sample plots located in the centers of 400×400 m grid. Trees with diameter <16 cm or height 1.3 m were counted. The impact of deer was assessed using: (i) the share of browsed terminal shoots in h=0.3−1.3 m class trees and the tolerable (based on a reference) share of browsed trees of such height with the most damaged tree species taken into account and (ii) the proportion between the density of recently (the previous year) debarked, frayed or broken trees and the tolerable (based on a reference) density of such trees. The main interpretation unit was composed of all stands in the GNP, while stands in particular protection districts formed lower level. Over the time, the density of trees in the regeneration layer increased (fig. 1). The density of recently debarked (frayed or broken) trees decreased considerably (fig. 2), even if a large number of trees (especially silver fir) with old wounds existed (fig. 4). The density of the browsed trees remained more or less unchanged. This type of damage most frequently affected silver fir, sycamore maple and rowan (fig. 3). Differences between the level of forest regeneration damage in different protection districts of the GNP remained similar (fig. 5). The deer impact assessed on the basis of the density of debarked trees significantly decreased to be classified as tolerable in 2011. However, the impact assessed with the share of trees with the browsed terminal shoot did not reach the tolerable level in one protection district. Results show that measures undertaken to protect forest regeneration produce a partially positive effect. The browsing level was still too high. Differences in the deer impact on the forest regeneration between protection districts can be considered as permanent ones.
    Źródło:
    Sylwan; 2015, 159, 06; 505-515
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pomiar zasobów leśnych z wykorzystaniem stałych koncentrycznych powierzchni próbnych - problemy i próby rozwiązań
    Measurement of forest resources using permanent concentric sample plots - problems and attempts at their solving
    Autorzy:
    Miścicki, S.
    Nowicka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015716.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    powierzchnie probne brzegowe
    powierzchnie probne koncentryczne
    lasy
    obliczenia
    stale powierzchnie obserwacyjne
    zasoby lesne
    lesnictwo
    permanent sample plots
    concentric plots
    edge plots
    successive measurements
    ingrowth
    overgrowth
    current periodic volume increment
    Opis:
    The conditions of using concentric sample plots in a successive inventory were researched. New definitions of ‘ingrowth' and ‘overgrowth' were introduced. As there is a possibility that sample plots could be located at stand edges, a new method POW_K of converting data from concentric plots was developed. The calculation results using this method were compared with the results obtained by the traditional method WSP. Two variants of obtaining inventory results for the whole forest district were taken into consideration – with and without stratification. Due to the value of mean errors of assessment of significant characteristics – volume and current periodic volume increment – the WSP method turned to be better – particularly in the variant with stratification. However, this method cannot be applied for utilizing the results of measurements of edge plots.
    Źródło:
    Sylwan; 2007, 151, 08; 15-26
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie cyfrowej stacji fotogrametrycznej VSD w leśnictwie do inwentaryzacji drzewostanów
    The use of digital photogrammetric station (VSD) in forest stands inventory
    Autorzy:
    Będkowski, K.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/129753.pdf
    Data publikacji:
    2003
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    fotogrametria cyfrowa
    VSD
    leśnictwo
    inwentaryzacja drzewostanów
    digital photogrammetry
    forestry
    inventory of forest stands
    Opis:
    Przedstawiono wyniki badań nad zastosowaniem pomiarów fotogrametrycznych, wykonywanych za pomocą stacji cyfrowej VSD, do inwentaryzacji drzewostanów. Badania prowadzono na 220 kołowych powierzchniach próbnych w drzewostanach Uroczyska Głuchów Leśnego Zakładu Doświadczalnego w Rogowie. Stwierdzono dużą przydatność stacji VSD do pomiaru cech taksacyjnych drzewostanów.
    Research results concerning application of the photogrammetric survey, realized by means of the digital station (VSD), for forest inventory was presented. The research work included 220 circular research areas in forest stands of the Głuchów forest district. The high level of usefulness of the VSD station for the survey of stands characteristics was ascertained.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2003, 13b; 301-305
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena wpływu roślinożernych ssaków kopytnych na odnowienie lasu w Białowieskim Parku Narodowym
    The impact of herbivorous ungulates on forest regeneration in the Białowieża National Park
    Autorzy:
    Kweczlich, I.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023208.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    szkody w lesie
    oddzialywanie na srodowisko
    odnowienia lasu
    metody badan
    Alces alces
    lesnictwo
    Bialowieski Park Narodowy
    jelen europejski
    ssaki kopytne
    Bison bonasus
    los
    zubr
    Capreolus capreolus
    Cervus elaphus
    sarna
    ungulate herbivores
    forest regeneration
    damage
    development
    comparative sample plots
    białowieża
    national park
    strict protection
    Opis:
    Measurement results carried out on 30 comparative sample plots in 2000−2002 demonstrated negative effect of ungulate herbivores on the development of forest regeneration in the strictly protected area the Białowieża National Park. The tree height index permitted to state that cervidas and bisons were the damage−causing agents. Other indices (density, tree height sum and species diversity) were insufficient to assess the effect of wild boars.
    Źródło:
    Sylwan; 2004, 148, 06; 18-29
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aktualizacja zapasu drzewostanów na podstawie danych z SILP i stałych kontrolnych powierzchni próbnych
    Updating of stands timber volume on the basis of the data from State Forest IT system [SILP] and permanent control sample plots
    Autorzy:
    Miścicki, S.
    Nowicka, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1013391.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    przyrost miazszosci
    aktualizacja
    lesnictwo
    powierzchnie probne
    uzytkowanie rebne
    System Informatyczny Lasow Panstwowych
    zapas drzewostanu
    silp
    permanent sample plots
    growing stock
    update
    utilization
    current periodical volume increment
    bayesian estimation
    Opis:
    The results of measurements of permanent control sample plots (skpp) were used to update the growing stock of individual stands in the State Forests IT System (SILP). The calculation was based on Bayesian estimation. Several update methods were used differing in the principles of estimating the initial growing stock. The growing stock update results for the whole forest and individual age classes were similar for all the applied methods. The volume of the estimated increment and the recorded cuts in SILP was lower compared to the measurement results in skpp. In addition to the periodical correction of the SILP data, the application of skpp would enable reduction in the intervals between the growing stock inventories (to 20−30 years) performed on the basis of a relatively large number of temporary sample plots.
    Źródło:
    Sylwan; 2008, 152, 11; 26-39
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prognoza rozwoju drzewostanów lasu naturalnego z wykorzystaniem modelu według klas wymiarów
    Forecast of the development of natural forest resources using a size-class growth model
    Autorzy:
    Gazda, A.
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/972934.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany
    buk zwyczajny
    Fagus sylvatica
    Abies alba
    modele wzrostu
    las naturalny
    prognozowanie rozwoju
    Roztocze
    leśnictwo
    Bukowa Góra
    jodła pospolita
    model wzrostu według klas wymiarów
    silver fir
    increment
    mortality
    Roztoczański National Park
    European beech
    Opis:
    The size−class growth model is an empirical model applicable for the prediction of the dynamics of natural forest growth. It is based on the following assumptions: (1) changes in the forest condition are determined on the basis of the sum of the changes that take place in individual size classes, (2) the trees in a given class are represented by single average tree, (3) the calculation of the future tree density distribution in size classes (fig. 1) is the main element of the prediction, and (4) the future tree density distribution is estimated on the basis of the initial structure, actual growth and mortality of trees in individual size classes. The aim of the research was to develop a size−class growth model to be used for the preparation of a medium−term forecast of natural forest dynamics. The study site is located on the Bukowa Góra Mt in the Roztoczański National Park (SE Poland). For the analyses we took all uneven−aged stands (128 ha in total) composed mostly of silver fir and European beech. The material was collected on 65 permanent sample plots every five years in the period 1991−2011. Trees with the breast height diameter (DBH)8 cm were measured on each sample plot (500 m2), while smaller trees – on three smaller concentric plots. We calculated, separately for fir and beech, the relationship between the mortality of trees and their diameter (fig. 2), the relationship between the diameter increment of trees and their DBH (figs. 3−4), the rate of saplings (h=0.3−1.3 m) growth into the first DBH class (DBH=0.1−1.9 cm). On the basis of these data, we elaborated a size−class growth model that we used to predict the development of timber resources (trees with DBH 8 cm) at 10−year intervals in the period 2001− −2041. In 2011, the predicted average standing volume was lower than the one actually measured. The forecast indicated an increase in the average standing volume (fig. 5), a reduction in the volume of ingrowth (fig. 6), an increase in the proportion of beech in the standing volume and ingrowth (figs. 5 and 7) and the maintenance of a similar density structure (fig. 8) throughout the period 2001−2041. The low accuracy of the prediction after 10 years (in 2011) was caused by the difference between the predicted and actual values of tree growth and mortality in the period 2001−2011.
    Źródło:
    Sylwan; 2016, 160, 03; 207-218
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ogniska sukcesji dla przywracania odpowiedniego składu gatunkowego drzew w lesie objętym ochroną
    Applied nucleation in the restoration of a suitable tree species composition in a protected forest
    Autorzy:
    Kanabus, A.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/979252.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    post−managed stand
    regeneration
    urgency of stand rebuildin
    Stołowe Mountains National Park
    Opis:
    Applied nucleation is one of silvicultural measures used in the afforestation of new areas and reclamation or rebuilding of the forest species composition. It involves sawing or planting small patches of trees, or nuclei as focal areas for succession, which spread out into the environment as soon as they produce seeds. The aim of the study was to create a plan of planted nuclei that facilitate, in the long term, the enrichment of the species composition and gradual reconstruction of forests in the Stołowe Mountains National Park (PNGS), south−western Poland. The plan was assumed to comprise the locations of nuclei with an indication of tree species designated for planting in a given nucleus. Stand descriptions and maps from 2014 were used to determine: (1) the expected proportion (tab. 1) as well as the need to change of the proportion of individual tree species (tab. 3), (2) the urgency of actions to be taken due to the difference between the desired and actual proportion of a given tree species in individual stands (tab. 2), (3) the proportion of nuclei with a given tree species (tab. 3) and (4) the location of nuclei (200 in total) taking into consideration the local needs to increase the proportion of a given species. To determine the proportion (and then the number) of nuclei with a given tree species we took into account: (1) the difference between the present and desired proportion of a given species (considering the most numerous one), (2) the frequency of species as desired admixture or co−dominant species, and (3) the occurrence of species in rare but important habitats, e.g. along streams or ravines (tab. 3). A map of the distribution of stands where introduction of a given tree species is desirable, including information on the urgency of this treatment was prepared (fig. 1). The PNGS forest area was divided into patches using polygons of different shape and area. The boundaries of the polygons were drawn separately for each tree species in such a way that the number of patches was equal to the number of nuclei designed for planting, and the number of stands in the two highest planting urgency classes within each of these patches was equal. One nucleus of a given tree species was planned to be established within a patch. Only proportion of European beech, silver fir and wych elm was lower than desired (tab. 3). Such an assessment did not reflect the scarcity of species in individual stands. In more than thousand cases, the urgency of introduction of a given species was very high (tab. 4). It was essential to establish some nuclei in a significant part of the PNGS forests (fig. 2).
    Źródło:
    Sylwan; 2020, 164, 10; 831-841
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Liczba i wielkość jednostek próbnych do pomiaru leżących martwych drzew metodą liniową
    Number and size of sample units for the estimation of coarse woody debris volume using the line intersect method
    Autorzy:
    Miścicki, S.
    Sołtys, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/980334.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    obszary chronione
    obszar ochrony scislej Bukowa Gora
    drzewa martwe
    zasoby drzewne
    miazszosc drzew
    metody pomiarow
    metoda liniowa
    linie probne
    bukowa góra
    protected forest
    sampling line
    single−tree−plot coefficient of variation
    standard error
    time of measurements
    Opis:
    The line intersect method is recommended for coarse woody debris (CWD) inventories. This is due to the fact that for the CWD volume estimation with the assumed standard error (SE), the total time of measurements using line sampling units is shorter than when using the fixed−area sample units. The aim of the research was to determine: (1) the number and size of sample units whose use will allow achieving the assumed SE of the CWD volume estimation, and (2) dependence of this number and size of sample units on the quantity of CWD. The research material was collected from 131 sample units (sampling lines) with a length of 50.48 m each. They were systematically located in the stands (128 ha) on Bukowa Góra in the Roztocze National Park (south−east Poland). Data concerning the intersection points of the sampling line (in relation to its beginning) with the axis of a downed log, made it possible to simulate the measurement using shorter sampling lines (4, 8, …, 44 m) than the original ones. The simulation was performed using the original data (when the average CWD volume was 73 m3/ha), which also represented an inventory unit in which the CWD volume accounted for 10, 40 and 70% of the original value. These data were obtained by a random elimination of the appropriate portion of trees. The relationship between the single−tree−plot coefficient of variation (calculated for such a size of a sample unit which on average contains only one log) and the length of the sampling line was determined (figs. 2 and 3). On this basis the number of sample units necessary to obtain the assumed SE value of the target variable was determined (tab. 1). Using the data on labour consumption of individual measurement operations, the total working time was calculated for such a number of sample units that would guarantee obtaining the assumed SE of the CWD volume estimation (tab. 2). The total time of measurements was longer in an inventory unit with scarcer CWD resources (figs. 5 and 6). The optimal (due to the time of measurements needed to achieve the assumed SE of the CWD volume estimation) line length occurred within the range of 4−150 m. The use of sample units with a length of 60−150 m each was recommended in forests with the average CWD volume over 30 m3/ha, and with a length of 150−200 m in forest with sparser CWD resources.
    Źródło:
    Sylwan; 2019, 163, 01; 35-46
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Określanie miąższości i zagęszczenia drzew w drzewostanach centralnej Polski na podstawie danych lotniczego skanowania laserowego w dwufazowej metodzie inwentaryzacji zasobów drzewnych
    A two-phase inventory method for calculating standing volume and tree-density of forest stands in central Poland based on airborne laser-scanning data
    Autorzy:
    Miścicki, S.
    Stereńczak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1318835.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    Polska Centralna
    drzewostany
    zasoby drzewne
    inwentaryzacja
    lotniczy skaning laserowy
    drzewa lesne
    miazszosc drzew
    zageszczenie drzew
    wysokosciowy model korony
    centroid
    ground-based data
    forest inventory
    scaling
    airborne ceiling
    Crown Height Model
    Opis:
    This paper describes a method of determining the stocking density and volume of forest stands based on airborne laser-scanning data. The aim of this study was to determine the relationship between ground-based measurements of standing volume and tree-density, and those acquired based on the Crown Height Model (CHM) interpolated from airborne laser-scanning data. Data were collected from 34 sample plots of two sizes for the CHM analysis: 500 m2 (radius 12.61 m) and 1963.5 m2 (radius of 25.0 m): Trees for sampling were selected using two methods, those whose “centroid” was fully within the sample plot (the tree was considered to be within the sample plot if the centroid of the crown was inside the circle) and those at the “border” (the tree was included in the sample plot if, at least, one part of the contour of the crown was inside the circle). There was a strong relationship (R2 = 0.86) between standing volume measured in sample plots on the ground and the indices produced by the crown elevation model at the locations where the ground-based measurements were performed.
    Źródło:
    Leśne Prace Badawcze; 2013, 74, 2; 127-136
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przekształcanie drzewostanów robiniowych w rezerwacie przyrody - koncepcja i realizacja
    Black locust stands’ conversion in a nature reserve – conception and execution
    Autorzy:
    Gazda, A.
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/880628.pdf
    Data publikacji:
    2012
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
    Źródło:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2012, 14, 4[33]
    1509-1414
    Pojawia się w:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inwentaryzacja odnowienia lasu i jego uszkodzen przez jeleniowate w Gorczanskim Parku Narodowym
    Autorzy:
    Miscicki, S.
    Zurek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/811281.pdf
    Data publikacji:
    1995
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Cervidae
    Gorczanski Park Narodowy
    jeleniowate
    lowiectwo
    szkody w lesie
    odnowienia lasu
    drzewostany mlode
    lesnictwo
    inwentaryzacja wielkopowierzchniowa
    szkody lowieckie
    Źródło:
    Sylwan; 1995, 139, 10; 53-69
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena jednolitosci rozpoznawania przez taksatorow uszkodzen drzew spowodowanych przez jeleniowate lub zubry
    Autorzy:
    Artemiuk, D.
    Miscicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/814668.pdf
    Data publikacji:
    1994
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    uszkodzenia drzew
    jednolitosc klasyfikacji
    szkody w lesie
    lesnictwo
    szkody lowieckie
    inwentaryzacja szkod
    Źródło:
    Sylwan; 1994, 138, 01; 59-66
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie cech określonych na podstawie wysokościowego modelu koron w dwufazowej metodzie inwentaryzacji zapasu drzewostanu
    Using characteristics based on crown height model in double sampling method of forest stock inventory
    Autorzy:
    Miścicki, S
    Stereńczak, K
    Powiązania:
    https://bibliotekanauki.pl/articles/346441.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Informacji Przestrzennej
    Tematy:
    lotnicze skanowania laserowe (LSL)
    leśnictwo
    Park Narodowy Gór Stołowych
    modelowanie
    airborne laser scanning (ALS)
    forestry
    Stołowe Mountains National Park
    modeling
    Opis:
    W pracy przedstawiono analizę wybranych cech drzew i drzewostanów, ustalonych i zmierzonych na zobrazowaniu aerolidarowym, pod kątem ich przydatności do zdalnego i automatycznego określania zasobności drzewostanów. Przeanalizowano cechy określone dla pojedynczych drzew w oparciu o wysokościowy model koron (WMK). Badania przeprowadzono w terenie górskim, w południowo-zachodniej części Parku Narodowego Gór Stołowych. Przeanalizowano 7 cech lub grup cech określonych na podstawie wysokościowego modelu koron i segmentacji drzewostanu na pojedyncze korony. Zmienność cechy zależnej – wielkości zapasu na powierzchniach próbnych – była najlepiej objaśniana przez zmienne niezależne: średnią wysokość drzew (HL) oraz iloczyn sumy objętości koron (VZ) i sumy wysokości drzew (SUMH) w obrębie powierzchni. Uzyskany współczynnik korelacji wielorakiej był stosunkowo wysoki i istotny statystycznie (R=0,820, P<0,001).
    The paper presents an analysis of selected tree and tree stand characteristics measured on aerial-lidar samples, in terms of their usefulness for remote and automatic determination of the growing stock volume. Characteristics specified for single trees were based on Crown Height Model (CHM). The study was conducted in mountainous area, in the south-western part of the Stołowe Mountains National Park. Seven stand and tree characteristics based on CHM and single tree segmentation were analyzed. The variability of the dependent features – growing stock volume on the sample plots - were best explained by the following independent variables: the average height of trees (HL) and the multiplication of the sum of crown volume (VZ) and the total tree height (SUMH) within the sample plot area. The obtained multiple correlation coefficient for those features was relatively high and significant (R=0.820, P <0.001).
    Źródło:
    Roczniki Geomatyki; 2012, 10, 5; 47-54
    1731-5522
    2449-8963
    Pojawia się w:
    Roczniki Geomatyki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problemy oceny stanu zdrowotnego lasu w inwentaryzacji okresowej
    Problemy ocenki zdravosostojanija lesa v khode periodicheskojj inventarizacii
    Problems of evaluation of the health condition of forests at periodical inventory
    Autorzy:
    Borecki, T.
    Miscicki, S.
    Nowakowska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/820175.pdf
    Data publikacji:
    1991
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy gospodarcze
    lasy panstwowe
    stan zdrowotny lasu
    ubytek aparatu asymilacyjnego
    zywotnosc drzew
    ocena okresowa
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    Źródło:
    Sylwan; 1991, 135, 04-06
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamika zasobów martwych drzew w ścisłym rezerwacie przyrody Świnia Góra
    Dynamics of the dead wood resources in the Swinia Gora strict nature reserve
    Autorzy:
    Mielczarczyk, J.
    Miścicki, S.
    Lepa, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/985781.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    rezerwaty przyrody
    rezerwat Swinia Gora
    rezerwaty scisle
    drzewa martwe
    drzewa martwe lezace
    drzewa martwe stojace
    stopien rozkladu drewna
    zasoby drzewne
    drzewa zywe
    miazszosc drzew
    dynamika zasobow
    decay stage
    decomposition
    log
    replenishment
    silver fir
    snag
    stump
    Opis:
    The aim of the study was to characterize the state and dynamics of dead wood resources in the stands of the Świnia Góra strict forest reserve, which was excluded from use for a longer period of time (from 1938/1953), and to compare the results with the state and dynamics of living trees resources. The reserve covers 51 hectares of an upland forest in the Świętokrzyska Forest (central Poland). Data was collected in 2000, 2007 and 2014 on 95 systematically distributed 500 m2 sample plots. The location and dimensions of living trees, standing dead trees (snags, including stumps) and downed trees (logs) on each sample plot were determined and measured. The decay stages of dead wood were estimated using a four−point scale classification. The average volume of dead wood was 198 ±32 m3/ha (43 ±8% of living trees) in 2000 and 138 ±17 m3/ha (24 ±3%) in 2014 (fig. 1). The ratio of the volume of snags to logs decreased from 30 ±5% in 2000 to 24 ±6% in 2014. Silver fir was the dominant species among both living and dead trees (fig. 2). The share of dead wood volume in decay stages 1 and 2 was the highest among snags, while in stages 2 and 3 – among logs. The number of highly decomposed wood increased in the period 2000−2014 (fig. 3). The decay rate of wood calculated over a 7−year period was more rapid for logs (fig. 4). In the period of 14 years, 119 ±23 m3/ha of dead wood underwent a complete decomposition. Volume of trees that died within that period was 59 ±10 m3/ha (fig. 5). The complete decomposition of snags amounted to 64 ±10% and logs to 58 ±5% of the initial dead wood volume. The dead wood resources in the investigated period were not balanced: the amount of decayed wood was larger than the amount of wood replenishing the resources. The lack of this balance was due to the lack of the balance of living trees – dead wood resources were insufficiently replenished by trees that had died during analysed 14 years. The dead wood resources at a level of approximately 200−230 m3/ha might be balanced via their continuous replenishment by newly died trees in the amount close to the current volume increment.
    Źródło:
    Sylwan; 2018, 162, 04; 295-304
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tree species diversity and above-ground biomass of natural temperate forest: montane versus lowland forest
    Autorzy:
    Gazda, A.
    Miscicki, S.
    Chwistek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/41218.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    tree
    plant species
    species diversity
    aboveground biomass
    temperate forest
    mountain forest
    lowland forest
    species richness
    Opis:
    We studied the relationship between tree-species diversity and the above-ground biomass on an example of two natural Polish forest with different altitiudinal range, plant species pool, vegetation and climatic conditions. The study sought to determine whether: (1) above-ground biomass in natural forests correlates with tree-species diversity irrespective of the kind of forest (montane or lowland), and (2) the relationship in question is negative, (3) the above-ground biomass is greater in montane forests than in lowland ones. Natural forests present in 1º Polish Gorce Mountains (montane forest) alongside comparable data for the 2º world-renowned lowland forest that is present in the Białowieża National Park. Data were collected within 558 sample plots (á 200-square-metre). The diameter at breast height of all trees with girths of or exceeding 12 cm was measured. To compute above-ground biomass we calculated dry masses for each tree on the basis of values for dbh and height, next we summed these values for all species present within each plot. The number of tree species on a plot ranged from only one (mainly in spruce stands) to six (in mixed deciduous lowland forest stands). The above-ground accumulated biomass ranged from 6 to 1155 (average 251±13) t ha–1 within the lowland forest, and from 2 to 849 (average 242±8) t ha–1 within the montane forest. We concluded that there was a humped-back shaped relationship between tree-species diversity and above-ground biomass in both lowland and montane natural forests.
    Źródło:
    Dendrobiology; 2015, 73
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drzewostany przeszłorębne w Lasach Państwowych
    Overmatured stands in the State Forests National Forest Holding
    Autorzy:
    Kłapeć, B.
    Miścicki, S.
    Stępień, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1011730.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany przeszlorebne
    struktura gatunkowa
    gospodarka lesna
    struktura wiekowa
    funkcje lasu
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    lesnictwo
    urzadzanie lasu
    zapas drzewostanu
    overmatured stand
    state forests national forest holding
    Opis:
    The data stored in the State Forests NFH's database were used to investigate the structure of overmatured stands in the State Forests NFH. For the classification of overmatured stands, the definition used in forest management planning was adopted. As per the status of 2008, there were 252 513 hectares (3.6% of forest area of the State Forests NFH) and 84 505 580 m3 (5.0% of standing timber) of overmatured stands (with the exclusion of nature reserves). Differences in the proportion in the area of these stands were found between individual Regional Directorates of the State Forests, stands distinguished with regard to the dominant species or forest function. One of the reasons – specific for Poland – is the necessity to reduce final harvest in forest districts in such a way that, in the case of larger than planned intermediate felling, did not exceed the total yield.
    Źródło:
    Sylwan; 2009, 153, 09; 594-606
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stan odnowien lasu i jego uszkodzen przez jeleniowate na terenie pozarzyska w Nadlesnictwie Rudy Raciborskie
    Autorzy:
    Miscicki, S.
    Szerszenowicz, A.
    Szerszenowicz, K.
    Szukiel, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/819714.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    jeleniowate
    odnowienia lasu
    tereny popozarowe
    lesnictwo
    szkody lowieckie
    Nadlesnictwo Rudy Raciborskie
    Źródło:
    Sylwan; 2002, 146, 04; 43-56
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena dokładności obrębowej metody inwentaryzacji lasu opartej na losowaniu warstwowym
    Assessment of the accuracy of the forest district inventory method based on the stratified sampling
    Autorzy:
    Bruchwald, A.
    Miścicki, S.
    Dmyterko, E.
    Stereńczak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/988954.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    miazszosc drzewostanow
    inwentaryzacja lasu
    metoda obrebowa
    losowanie warstwowe
    dokladnosc
    auxiliary variable
    dominant tree species
    sample allocation
    stratum
    Opis:
    The aim of the research was to assess the accuracy of the stratified sampling method used to estimate the standing volume of a forest district and to compare it with the accuracy of simple random sampling methods. The paper presents the variability of the variables affecting the accuracy of the stratified sampling method. We attempted to find the ways to increase this accuracy. The research was based on the empirical material collected on approximately 42,000 sample plots with a size of 50−500 m², and with an average of 737 plots per forest district. The standard deviation of the merchantable volume of trees on sample plots ranged from 87 to 213 m³/ha, with an average of 128 m³/ha. The coefficient of variation ranged from 5.3 to 28.5% (the average 40.8%). Using a simple random sampling method, the standard error of the volume ranged from 3.3 to 10.0 m³/ha (the average 4.8 m³/ha) and the relative error – from 1.01 to 3.41% (the average 1.55%). The absolute error of the stratified sampling method under which strata are formed on the basis of the main tree species and its age ranged from 2.9 to 7.4 m³/ha, the average 4.2 m³/ha, and the relative error ranged from 0.65 to 1.95%, 1.02% on average (tab.). The accuracy of the stratified sampling method was by 15% higher than that of the simple random sampling method. We found that the relationship between the volume of a sample plot and the main tree species and its age measured by the correlation coefficient was 0.453 on average. For the relationship between volume and age of stands this coefficient was on average 0.422, while between volume and main tree species – only 0.118. Stand age – as an auxiliary variable in formation of strata – proved to be of moderate usefulness resulting from a small difference in the standing volume of stands in older age classes. Main tree species turned out to be of slight usefulness in formation of strata, therefore it seems reasonable to find some other auxiliary variables to replace it.
    Źródło:
    Sylwan; 2017, 161, 11; 909-916
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena stanu zdrowotnego świerka na podstawie analizy zdjęć wielospektralnych wykonanych fotograficznymi aparatami cyfrowymi przenoszonymi przez bezzałogowy statek latający
    Assesment of norway spruce health using multispectral images acquired from unmanned aerial vehicle with non-metric cameras
    Autorzy:
    Zmarz, A.
    Będkowski, K.
    Miścicki, S.
    Plutecki, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/130756.pdf
    Data publikacji:
    2012
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    świerk
    stan zdrowotny
    zdjęcia wielospektralne
    bezzałogowy statek latający
    Norway spruce
    health
    multispectral images
    UAV
    Opis:
    W pracy oceniono przydatność zdjęć w zakresie bliskiej podczerwieni. Zdjęcia wykonano zmodyfikowanymi aparatami cyfrowymi (Sigma DP2) zamontowanymi na bezzałogowym statku latającym AVI-1. Dla wybranego obiektu badawczego o pow. 284 ha, wykonano 930 zdjęć o rozdzielczości terenowej 0,15 m. Zdjęcia zostały przetworzone do postaci ortomozaik w barwach naturalnych oraz zbliżonych do spektrostrefowych. W terenie wykonano obserwacje koron świerków rosnących w ok. 40-letnim, jednogatunkowym drzewostanie. Określono gęstość igliwia, jego kolor oraz inne symptomy świadczące o kondycji drzew. Te same drzewa zidentyfikowano na ortomozaikach i poddano klasyfikacji, której wyniki porównano z danymi uzyskanymi w terenie. Ocenę stanu zdrowotnego świerka (Picea bies) na ortomozaikach wykonano analizując udział barwy czerwonej związanej z różnymi objawami chorobowymi i uszkodzeń koron. Obserwacje wykonało niezależnie od siebie dwóch obserwatorów, każdy w dwóch seriach. Ocenę jednolitości rozpoznawania barw przez obserwatorów oparto na porównaniu uzyskanych wartości. Stwierdzono, że jest możliwe podzielenie obserwowanych drzew na kilka klas zdrowotności.
    Several tests were carried out of unmanned aerial vehicles (UAV) equipped with customer cameras to take pictures of forest areas. Based on this a special own UAV was built which can carry a set of non-metric digital cameras recording images in RGB and near-IR channels. Approximately 1000 aerial images with a ground resolution of 0.15 m were taken for the selected research facility with an area of approximately 250 ha. These images were used to produce an orthomosaic in natural and multispectral bands. It was decided to find out whether it is possible to evaluate the health condition of spruce (Picea abies). The field observations were made of the crowns of spruces growing in about 40-year-old single-species stand. Information on the density of pine needles, its color, and other symptoms of the tree condition were recorded. The same trees were identified on orthomosaic and classified. Results of classification from the field and orthomosaic were compared. It was concluded, that it is possible to divide the observed number of trees into several health condition classes.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2012, 23; 541-550
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wplyw drog szybkiego ruchu na wybrane elementy taksacyjne drzewostanow sosnowych
    Autorzy:
    Borecki, T.
    Stepien, E.
    Miscicki, S.
    Nowakowska, J.
    Wojcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/823640.pdf
    Data publikacji:
    1997
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    cechy taksacyjne
    oddzialywanie na srodowisko
    drogi szybkiego ruchu
    lesnictwo
    Źródło:
    Sylwan; 1997, 141, 11; 37-48
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena dokladnosci inwentaryzacji drzewostanow sosnowych wykonywanej za pomoca probnych powierzchni relaskopowych
    Autorzy:
    Borecki, T.
    Miscicki, S.
    Nowakowska, J.
    Stepien, E.
    Wojcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/819904.pdf
    Data publikacji:
    1999
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    powierzchnie probne relaskopowe
    zasoby drzewne
    lesnictwo
    inwentaryzacja lasu
    dokladnosc
    Źródło:
    Sylwan; 1999, 143, 03; 33-41
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena plantacji szybko rosnacych gatunkow drzew lesnych w Lesnym Zakladzie Doswiadczalnym w Rogowie
    Evaluation of Plantations of Fast Growing Forest Tree Species in the Forest Experimental Station in Rogow
    Autorzy:
    Nowakowska, J.
    Borecki, T.
    Miscicki, S.
    Stepien, E.
    Zielony, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/818360.pdf
    Data publikacji:
    1993
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    brzoza brodawkowata
    rozwoj roslin
    hodowla lasu
    Betula verrucosa zob.Betula pendula
    Picea abies
    lesnictwo
    uprawa plantacyjna
    Larix polonica
    modrzew polski
    Pinus sylvestris
    topola
    drzewa szybkorosnace
    wzrost roslin
    Betula pendula
    Populus
    sosna zwyczajna
    zasobnosc siedliska
    swierk pospolity
    Źródło:
    Sylwan; 1993, 137, 04; 43-51
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie sposobów określania składu gatunkowego drzewostanów obrębu leśnego
    Comparison of the methods of determining the tree species composition of stands in a forest district
    Autorzy:
    Bruchwald, A.
    Miścicki, S.
    Dmyterko, E.
    Stereńczak, K.
    Wysocka-Fijorek, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/985705.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    sklad gatunkowy
    struktura gatunkowa
    metody badan
    analiza porownawcza
    obreby lesne
    basal area
    cover
    diversity
    sample plot
    survey
    volume
    Opis:
    In Polish forest management planning, the species composition of stands in a forest district is established by adding up the volumes of tree species from individual forest stands. These volumes are calculated according to the estimated share of species cover and the estimated volume of the entire forest stand. The species structure of stands in a forest district, established on the basis of such a method, may be different than that obtained from sample plots. The aim of the study was to compare three ways of determining the tree species structure of stands in a forest district. In Method 1, the species composition was estimated on the basis of the volume of trees measured on sample plots as part of a periodic forest inventory based on stratified sampling. The same data were used in Method 2, but the share of species was calculated on the basis of the basal area. In Method 3, the species structure was estimated according to the volume of trees estimated in each forest stand based on the cover of a given species. The empirical material was collected in 53 forest districts. In method 1 and 2, data from an average of 740 sample plots within the forest district were used. In Method 3, data from the forest stand descriptions contained in the database of the State Forests Information System were used. For each forest district, species composition was calculated, including 6 tree species and 8 groups of tree species. For all forest districts, the average shares of individual species and groups of species differed, depending on the applied method (tab. 1). In case of methods 1 and 2, the biggest difference was found for pine – the most numerous species – but it was also big for less numerous ones: birch and oak (tab. 2). In case of methods 1 and 3, the biggest difference in share was also found for pine (tab. 3). The greater the species diversity of a forest district (determined according to Simpson’s index of diversity), the greater was the average difference in the estimated share of an individual species (figs. 1 and 2). The method of determining the species structure in a forest district used in forest management practice nowadays was considered insufficient. It was proposed to establish it in larger units (subclass, age class, forest district) only according to the volume of trees measured on the sample plots (without rounding and ‘switching’ of species), using the stratified sampling method.
    Źródło:
    Sylwan; 2019, 163, 05; 365-372
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problem masowego zamierania drzewostanów świerkowych w Leśnym Kompleksie Promocyjnym "Puszcza Białowieska"
    Problem of a massive dying-off of Norway spruce stands in the 'Bialowieza Forest' Forest Promotional Complex
    Autorzy:
    Brzeziecki, B.
    Hilszczański, J.
    Kowalski, T.
    Łakomy, P.
    Małek, S.
    Miścicki, S.
    Modrzyński, J.
    Sowa, J.
    Starzyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/985913.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lesne kompleksy promocyjne
    Lesny Kompleks Promocyjny Puszcza Bialowieska
    drzewostany swierkowe
    stan sanitarny
    zagrozenia drzewostanow
    szkodniki roslin
    kornik drukarz
    Ips typographus
    dynamika populacji
    gradacja
    drewno martwe
    grzyby patogeniczne
    zagrozenie pozarowe
    zamieranie lasow
    norway spruce bark beetle infestation
    białowieża forest
    ecosystem stability
    multifunctional forestry
    natura 2000 plc200004
    natural values
    world heritage site
    Opis:
    The Białowieża Forest (BF) is in many respects an exceptional object, of a great importance for nature protection and forest management, at the international scale. The BF plays also a key role from the point of view of regional development and welfare of local community. In the last period, a big threat for multiple values of the BF has arisen, as a result of enormous bark beetle infestation, which started in 2012 and has killed 1.4 million m3 of spruce trees. In the paper, first, a brief overview of the general history of the BF and an account of long−term human impacts on its functioning and structure is provided. Next, the history of bark beetle infestations in the BF is analysed. It is shown that, in the period 1992−2007, the average volume of spruces killed by bark beetle amounted on average to 20,000 m3 of wood annually. During that period practically all dead trees were removed from the forest by means of salvation cuttings. Starting from 2008, more and more trees infested by European spruce bark beetle were left in the forest, in a result of a pressure exerted by environmental groups. In 2012, Minister of Environment decided to reduce the allowable cut, determined in forest management plans elaborated for the managed part of the BF, from 107,000 to 48,500 m3/year. This decision, along with several other regulations and restrictions, made in practice impossible to stop the development of a current bark beetle infestation, which started in 2011 and intensified during the next 6 years (solely in 2016 bark beetles killed 480,000 m3 of spruce trees). In the paper, the most important implications and consequences of the current situation are briefly summarized and discussed. A special attention is given to the problems concerning: 1) protection of Natura 2000 species and sites (endangered by bark beetle outbreak), 2) a negative influence of large amounts of spruce deadwood on forest soils, 3) threats caused by pathogenic fungi, 4) question of public safety, 5) fire hazard, and 6) economical dimension. The legal and socio−economical foundations of the functioning of Hajnówka, Browsk and Białowieża forest districts comprising the managed part of the BF, as well as their most important environmental and social consequences are discussed too. Among others, it is indicated that, under current conditions of the BF, human intervention plays a key role in maintaining stable and compositionally diverse woodland communities. Finally, several suggestions and recommendations are provided, aimed at, in the short term, breaking off the current bark beetle outbreak, and, in the long term, at maintaining a multifunctional character of the BF and its ability to provide all important ecosystem services on a sustainable basis.
    Źródło:
    Sylwan; 2018, 162, 05; 373-386
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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