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    Wyświetlanie 1-9 z 9
    Tytuł:
    Wplyw morfologii terenu i zwiazanych z tym stosunkow wodnych na zyznosc wybranych mezo- i eutroficznych siedlisk bagiennych
    Autorzy:
    Grzyb, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/818947.pdf
    Data publikacji:
    1995
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zyznosc siedliska
    siedliska lesne
    siedliska bagienne
    siedliska wilgotne
    stosunki wodne
    lesnictwo
    rzezba terenu
    Źródło:
    Sylwan; 1995, 139, 11; 89-100
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przedstawienie lasów na polskich mapach topograficznych
    Presentation of forests on the Polish topographic maps
    Autorzy:
    Olenderek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/973823.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Nadlesnictwo Rogow
    drogi lesne
    lasy
    lesnictwo
    mapy topograficzne
    nazwy wlasne
    roslinnosc
    rzezba terenu
    topographic map
    forest
    Rogów Forest Discrict
    Polska
    Opis:
    The objective of the paper was to compare the Rogów Forest District forests presented on ten topographic maps at various scales published in Poland in the last few decades. The analysis of selected features, like vegetation cover, roads, topography and names revealed significant differences in showing forest areas on individual maps.
    Źródło:
    Sylwan; 2011, 155, 03; 202-211
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Podstawy planowania składu gatunkowego w lasach górskich na przykładzie Beskidu Niskiego
    Basis of the species composition planning model for mountain forests on the example of Beskid Niski Mts.
    Autorzy:
    Bruchwald, A.
    Dmyterko, E.
    Mionskowski, M.
    Niemczyk, M.
    Łukaszewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/972988.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    hodowla lasu
    planowanie
    czynniki siedliska
    typy siedliskowe lasu
    leśnictwo
    tereny górskie
    lasy górskie
    skład gatunkowy
    wysokość nad poziomem morza
    rzeźba terenu
    species composition
    habitats
    landforms
    mountain forests
    Opis:
    The study presents a method of planning species composition of forest stands in mountain areas on the example of Beskid Niski Mts. (south−eastern Poland). The focus was on the species composition of forest stands growing in different conditions, taking into account the type of forest habitat and terrain characteristics: altitude, exposition and slope. The research was based on data stored in the Information System of the State Forests. We used modified growth model for data processing and calculation of site index for the forests older than 60 years. The Beskid Niski Mts. are covered mostly by European beech (33.8%), silver fir (28.3%) and Scots pine (18.9%). Taking into account exclusively the productive capacity of individual forest stands, fir and spruce would be the most desirable species in analysed region. The Beskid Niski Mts. are characterized by a very small diversity of the habitat with domination of mountain fresh deciduous forest (LGśw, 92.1% of the area). We divided analysed region into four altitudinal zones that vary greatly in fraction of afforested area. Beech dominates in all zones and its share increases from the foothills to montane zone (fig. 5). Basing on a digital terrain model, the areal share of 10 landforms was determined for each stand and altitudinal zone (fig. 8). This enabled more detailed planning of species composition. However, it required the adoption of six specific assumptions including the need to maintain a suitable proportion of all tree species growing in the mountains, specifically the main forest tree species: spruce, fir and beech. The 5−stage project (preliminary, historical, current, planning, verification stages) consisting of planning species composition uses, in stage 4, detailed information on landforms. The project assumes that the fragments of forests where trees are expected to grow fast will be earmarked for endangered species. The model sees the need of planting the weaker tree species to be present in the forest ecosystems of the Beskid Niski. The proposed project will enable foresters−practitioners to plan the forest species composition for each of the forest districts in the Beskid Niski quickly. Such a programme might also be an integral part of the growth model of forests useful for forecasting and increasing timber resources.
    Źródło:
    Sylwan; 2016, 160, 03; 219-229
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Znaczenie wybranych czynników kształtujących powierzchnie terytoriów puszczyka Strix aluco w lasach Lubelszczyzny
    Importance of selected factors influencing the size of tawny owl Strix aluco territories in the forests of Lublin region
    Autorzy:
    Cios, S.
    Grzywaczewski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/993198.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Lubelszczyzna
    lasy
    ptaki
    puszczyk
    Strix aluco
    zageszczenie populacji
    wielkosc terytorium
    warunki srodowiska
    pory roku
    czynniki siedliska
    rzezba terenu
    fazy ksiezyca
    terytorializm
    strix aluco
    territory size
    phenological seasons
    Opis:
    Study analysis the influence of selected factors on the size of tawny owl Strix aluco territories in the forests of Lublin region. The survey was held in years 2005 and 2006 using the voice stimulation. The territory area was determined using Minimum Convex Polygon method. 43 territories with the average size of 18.8 ha were set on 26 study sites. The largest territory was found for birds during laying and incubation period (102.6 ha) and during after−breeding period (98.3 ha). Significant differences in territory size was found depending on the breeding density (high density – average territory size of 5.1 ha, low density – 26.9 ha). The average territory area in winter was 1.5 ha (range 1−2.7 ha), in spring 20.8 ha (1−102.6 ha), in summer 10.8 ha (1−65.5 ha) and in autumn 30.9 ha (1−98.3 ha).
    Źródło:
    Sylwan; 2013, 157, 05; 348-357
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie bonitacji wzrostowej drzewostanów daglezjowych w Polsce
    Variability of the site index of Douglas fir stands in Poland
    Autorzy:
    Bijak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/987057.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    daglezja zielona
    Pseudotsuga menziesii
    drzewostany daglezjowe
    wzrost drzewostanu
    bonitacja wzrostowa
    siedliska lesne
    bonitacja siedliska
    gleby lesne
    rzezba terenu
    Polska
    site index
    soil type
    forest site type
    relief features
    pseudotsuga menziesii
    Opis:
    The objective of the study was to analyse the site index (SI) of Douglas fir (Pseudotsuga menziesii) stands in relation to the forest habitat type, soil type and relief characteristics. We utilised infor− mation available in the Information System of the State Forests in Poland that included selected parameters describing habitat conditions and dendrometric characteristics of Douglas fir stands. In total, processed data referred to 863 stands with a total area of 1,644.45 ha. As the SI distribution was not consistent with the normal one (Shapiro−Wilk test, p <0.0001) we applied Kruskal−Wallis or Mann−Whitney tests to assess the significance of observed differences. Site index of surveyed stands ranged from 19.9 to 47.8 m, 32.6 m on average (standard deviation of 3.3 m). Douglas fir in northern and southern Poland characterized by higher SI than in western and south−western part of the country (HK−W=83.5; p<<0.001; fig. 2). Forest habitat type significantly distinguished analysed stands (HK−W=30.1; p<<0.001). The highest SI values were observed for mixed deciduous habitats (fig. 3). For more fertile fresh deciduous habitats Douglas fir achieved slightly lower site index, while the least fertile mixed coniferous habitats are characterized by significantly lower SI. Habitat moisture variant had no significant effect on the average SI values (HK−W=2.6; p=0.269). The highest values were found in strongly fresh habitats (32.8 ±4.1 m), while the lowest in the humid variant (31.7 ±3.4 m). We found significant influence of soil type (HK−W=23.2, p<0.001) even though the average SI values for each category were relatively similar (fig. 4). The highest values were observed for Cambisols (33.3 ±3.7 m), while the lowest for Arenosols (32.1 ±3.0 m). Particle size distribution is an important factor for Douglas fir site index (tab.). We found that the heavier material (the higher the content of silt and clay), the significantly higher SI values (HK−W=16.9; p=0.001). Mean SI for stands growing on former farmlands (32.0 ±3.3 m) and on forest areas (32.7 ±3.3 m) were not significantly different (ZM−W=1.73; p=0.084). There was no significant effect of the relief forms on site index surveyed Douglas fir stands apart from the fact that stands growing on slopes are characterized by significantly higher SI (ZM−W=1.99; p=0.047).
    Źródło:
    Sylwan; 2017, 161, 03; 208-217
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ rzeźby terenu na bonitację i cechy wzrostowe drzewostanów sosnowych na wydmach Kotliny Toruńskiej
    Impact of land relief on site index and growth parameters of Scots pine stands on inland dunes in the Torun Basin
    Autorzy:
    Sewerniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989617.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kotlina Torunska
    rzezba terenu
    ekspozycja terenu
    drzewostany sosnowe
    sosna zwyczajna
    Pinus sylvestris
    wzrost roslin
    wysokosc drzew
    piersnice drzew
    smuklosc drzew
    bonitacja drzewostanow
    topography
    pinus sylvestris
    slope aspect
    tree growth
    forest site
    soil
    inland dunes
    Opis:
    The aim of the study was to determine the impact of land relief on site index and growth parameters (height, diameter, slenderness) of Scots pine (Pinus sylvestris) stands on inland dunes in the Toruń Basin (N Poland). The study was conducted on 150 plots situated on north− and south−facing dune slopes (54 pairs of twin plots) as well as in intra−dune depressions (42 plots). Height and diameter of ten the thickest pines per 0.1 hectare was measured, and next site index as a potential height of a stand at the age of 100 years was calculated. As the results of the used equation, site index was strongly (R²=0.58) negatively biased to age, so the bias was removed using an elaborated regression model. For stands older than ca. 20 years, the clear higher site index values as well as higher heights and diameters were found for intra−dune depressions than for slopes of the two studied aspects. This was explained by the occurrence of much more fertile and moister soils in depressions. The only age class for which the advantage of site index and growth parameters was not stated for depressions was the youngest class (≤20 years old). This was likely caused by the competitive impact on young pines of Calamagrostis epigejos which prefers intra−dune depressions on inland dunes and forms in forest floor usually dense cover in this position. Impact of contrasting slope aspect was clearly related in the study to age of a stand. For the youngest studied age class both site index values as well as heights and diameters were lower on north− than on south−facing slopes. This was explained by the effect of weeds which form more dense cover on slopes of this aspect than on sunny slopes. For older stands; however higher site index values as well as heights and diameters were revealed for north−facing slopes, due to pines likely took advantage of higher moisture of soils occurring in this place. With reference to slenderness, regardless stand age the parameter was regularly the highest for north− than both for south−facing slopes and depressions. Because of the revealed distinct higher productivity of intra−dune depressions in normally dry and poor in nutrients dune landscape, it could be reasonable to use the depressions to introduce admixtures of broadleaved tree species into pine monocultures on inland dunes.
    Źródło:
    Sylwan; 2016, 160, 08; 647-655
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu przygotowania gleby na dynamikę jej warunków wodnych na wydmach Kotliny Toruńskiej
    Effect of site preparation method on dynamics of soil water conditions on inland dunes of the Torun Basin
    Autorzy:
    Sewerniak, P.
    Stelter, P.
    Bednarek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/987135.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kotlina Torunska
    wydmy srodladowe
    uprawy lesne
    rzezba terenu
    przygotowanie gleby
    plug LPZ-75
    frez lesny
    gleby bielicowe
    zawartosc wegla organicznego
    higroskopijnosc
    wilgotnosc gleby
    warunki wodne
    zapas wody w gruncie
    soil
    site preparation
    forest site
    inland dunes
    topography
    podzols
    dry areas
    Opis:
    The research was conducted in a young Scots pine (Pinus sylvestris) plantation located in a dune area of the Toruń Basin (N Poland). The aim of the study was to investigate differences in dynamics of soil water conditions followed different method used for site preparation. The three plots were investigated in the study: belt of soil prepared by a mill, north−facing slope of a dune (FR−N), belt of soil prepared with a mill, south−facing slope of a dune (FR−S) and soil prepared with a plough (furrows) on the ridge of a small aeolian mound (LPZ). On each plot soil samples were taken and soil moisture was regularly measured from April to December of 2013 (the TDR method). The measurements of soil moisture were taken at four depths (3, 10, 25 and 50 cm) at intervals of ca. 2 weeks. Additionally, soil moisture was also measured on 25.08.2015. It was done to determine soil water conditions for a deep summer drought (the measurements were taken twice this day – just before and after rain which turned to be the first since ca. a month). Reserves of soil moisture and shares of water unavailable to plants were calculated for every measure day for each study plot. As a result of higher organic carbon content, values of soil actual moisture as well as reserves of soil moisture were almost regularly higher for belts mixed with a mill than for furrows prepared with a plough (fig. 1, 3). Opposite relation was found, however for the summer drought (tab. 2). This was explained by the higher repellence of rich in organic mater, dried material occurring in belts. On 25.08.2015 much lower improvement of water conditions after rain was also stated for this material than for topsoil in LPZ. Unfavoured soil water conditions for plants occurring in belts in dry periods could explain relatively low dynamics of pine growth revealed for the variant of soil preparation in a previous study. However, it was concluded that a forest mill should be recommended for forestry, because the device much less disturbs topsoil than a plough. Besides, differences in growth parameters of pines followed different methods of soil preparation used before planting decline in next years of a stand growth.
    Źródło:
    Sylwan; 2017, 161, 01; 52-61
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena jakości wód źródlanych w rejonie Skrzycznego i Baraniej Góry
    Quality assessment of spring water from the area of Skrzyczne and Barania Gora mountains
    Autorzy:
    Małek, S.
    Astel, A.
    Krakowian, K.
    Opałacz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008955.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gory
    Beskid Slaski
    Skrzyczne
    Barania Gora
    zrodla
    woda zrodlana
    jakosc
    wlasciwosci chemiczne
    odczyn wody
    przewodnosc elektrolityczna
    stezenie jonow
    warunki srodowiska
    podloze geologiczne
    gleby
    siedliska
    szata roslinna
    wysokosc nad poziomem morza
    rzezba terenu
    springs
    water quality
    beskid śląski
    snowmelt
    spruce stands
    Opis:
    The study was carried out in the year 2009 on northern, southern and western slopes of Skrzyczne and Głębczański and Roztoczański stream catchments on Barania Góra in the Beskid Śląski Mountains. Water samples were collected from springs during snowmelt (May 1st−3rd). Data set consisting of conductivity, water pH, concentrations of major anions (Cl–, NO3–, SO42–), major cations (Na+, K+, Ca2+, Mg2+) and metals (Al, Fe, Mn, Zn) was produced. Waters were then classified according to Polish standards. Water class depended strongly on chemical composition of melting snow. It was found that water from most sampling points in springs was not potable – 39 out of collected 48 samples on Skrzyczne and 51 out of 57 samples collected on Barania Góra were beyond the first class according to Polish standard from the year 2008. The main reason for that was too low pH and high NO3– concentration. Chemical composition of spring waters depended also on plant cover and local properties of drainage areas. Statistically significant difference was observed between spruce and beech stands. Springs located in beech stands characterised higher concentrations of Ca2+, Mg2+, K+, Na+, SO42–, Cl– and higher PEW and additionally on Barania Góra higher pH as well. This dependence should be considered while planning stand composition in springs neighbourhood.
    Źródło:
    Sylwan; 2010, 154, 07; 499-505
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ sposobu przygotowania gleby na dynamikę jej temperatury na wydmach Kotliny Toruńskiej
    Effect of site preparation method on dynamics of soil temperature on inland dunes of the Torun Basin
    Autorzy:
    Sewerniak, P.
    Stelter, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989413.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Kotlina Torunska
    wydmy srodladowe
    uprawy lesne
    rzezba terenu
    przygotowanie gleby
    plug LPZ-75
    frez lesny
    gleby bielicowe
    gestosc objetosciowa
    porowatosc
    wilgotnosc gleby
    zawartosc materii organicznej
    temperatura gleb
    dynamika temperatury
    pojemnosc cieplna
    soil
    thermal conditions
    site preparation
    inland dunes
    topography
    podzols
    dry areas
    Opis:
    The objective of the study was to determine the dynamics of soil temperature on inland dunes in the Toruń Basin (N Poland) with reference to the two methods of site preparation: homogenization of belts with a forest mill (FR) and preparation of trenches with a double−mouldboard plough LPZ−75 (LPZ). The study was conducted in a young Scots pine (Pinus sylvestris) plantation on plots with soil prepared by a forest mill on north− and south−facing slopes of a dune (FR−N and FR−S respectively) and with soil prepared with a plough on the ridge of a small aeolian mound (LPZ). On each plot a soil pit was dug and soil samples were taken from distinguished horizons for laboratory analyses. Besides, from April to December of 2013, at interval of ca. two weeks, soil temperature was measured at the depths of 3, 10, 25 and 50 cm. To estimate daily amplitudes of temperature in topsoil on the studied plots, in a sunny summer day (23.08.2013) the temperature was additionally measured from 5 a.m. to 9 p.m. with an hourly interval. These measurements were taken at the two upper depths (3 and 10 cm). Despite the fact that soil surface was distinctly darker for belts prepared with a mill than in trenches prepared by a plough, soil temperatures were almost regularly lower in FR−N and in FR−S than in LPZ. This concerns all the investigated depths. The differences were explained by much higher moisture of soil material in belts what involves higher thermal capacity and with that slower heat of a soil, as well as causes higher losses of thermal energy for evaporation. Another agent explaining this was indicated to be related to high porosity of materials found in the belts. Namely, especially in dry periods, high volume of soil pores are filled on the FR plots with air what impedes heat transfer in a soil. It was concluded that stated in a previous study worse growth of pines planted in milled belts than in tranches prepared with a plough was unlikely related to differences in soil thermal conditions. Thus, differences in growth dynamics of young pines in plots with site prepared by the two studied methods are caused by other reasons rather as primarily other competitive impact of weeds and differences in soil water conditions occurring at root system of young trees.
    Źródło:
    Sylwan; 2016, 160, 11; 923-932
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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