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Tytuł:
Zagrożenie lasu przez wiatr na przykładzie nadleśnictw Puszczy Białowieskiej
Risk of wind damage to stands on the example of selected forest districts in the Bialowieza Primeval Forest
Autorzy:
Bruchwald, A.
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/1008781.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Bialowieska
nadlesnictwa
Nadlesnictwo Browsk
Nadlesnictwo Bialowieza
Nadlesnictwo Hajnowka
lasy
zagrozenia lasu
wiatry
uszkodzenia drzewostanow
ryzyko uszkodzenia
modele ryzyka uszkodzenia
stand damage risk model
stand damage risk factor
wind
białowieża primeval forest
Opis:
Stand damage risk model was applied to three forest districts located in the Białowieża Primeval Forest: Browsk, Hajnówka and Białowieża. For this purpose, information contained in the database of the State Forests Information System was used. The obtained values of the stand damage risk factor allowed assigning each stand to one of the six risk classes. Higher class indicates higher damage risk to stands. The share of the stand area was calculated for each class. The weighted average of the areal shares of stands in the two highest damage risk factor classes was used as a measure of wind damage risk to forests. The values of this measure for individual forest districts were as follows: Browsk – 27.3%, Hajnówka – 33.0%, Białowieża – 38.3%. The degree of risk to these forests ranges from average to high, which is mainly because of large proportion of the high, old−growth spruce stands. Forest stands of the Białowieża Primeval Forest with a high risk factor are threatened by damage in the event of strong winds in this area.
Źródło:
Sylwan; 2012, 156, 10; 750-764
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagrożenie lasów Polski na podstawie modelu ryzyka uszkodzenia drzewostanu przez wiatr
Risk of the wind damage to the forests in Poland on the basis of a stand damage risk model
Autorzy:
Dmyterko, E.
Mionskowski, M.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/989828.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zagrozenia lasu
wiatry
huragany
uszkodzenia drzewostanow
modele ryzyka uszkodzenia
Polska
wind damage
stand damage risk model
poland
Opis:
On the basis of the wind damage risk model for forests using the data of the State Forests Information System, the stand damage risk factor Wr for each of the 430 forest districts in Poland and the threat measure Ms for a given forest district were determined. The measure of threat to forest Ms for a forest district is a methodical basis for assessing the potential damage to forests in Poland. Its value ranges from 8.1% for the Brzózka Forest District to 48.9% for the Ujsoły Forest District (fig. 1), giving the average value of 24.6% and standard deviation of 7.03%. The measure Ms was the basis for differentiating the levels of threat of wind damage to forest for forest districts. Level 1 (Ms≤10%) indicates low threat, level 2 (10%40%) – very high threat. Low threat to forests was found only in two forest districts located in the western part of the country. 113 forest districts, which form large concentrations particularly in western and central Poland, are exposed to an elevated threat. Most forest districts (233) are classified to a group of moderate threat. They are located across the country and are mostly concentrated in the northern and southern regions of Poland. 71 forest districts exposed to high threat are concentrated in the south of Poland in the Carpathians and the Sudetes, with scattered presence in the north of the country. Most of the 11 forest districts with a very high threat to forests are located in the mountains (tab., fig. 1). For the forest districts with a particularly high and very high threat, new silvicultural procedures and the basis for decision making in the field of forest management should be developed to reduce the risk of damage to forest.
Źródło:
Sylwan; 2015, 159, 05; 361-371
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wystepowanie pozarow lasu w Syberii Srodkowej w zaleznosci od szerokosci geograficznej i ocena uszkodzenia lasow
Geographic conditionality of wildfires and estimation of damages of forests of Central Siberia
Autorzy:
Ponomarev, E.I.
Powiązania:
https://bibliotekanauki.pl/articles/45793.pdf
Data publikacji:
2008
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
uszkodzenia drzewostanow
szerokosc geograficzna
Syberia Srodkowa
czynniki antropogeniczne
lasy
pozary lasow
lesnictwo
czynniki naturalne
rozmieszczenie przestrzenne
Źródło:
Leśne Prace Badawcze; 2008, 69, 2; 109-115
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wskazniki uszkodzenia koron drzew okreslane metoda drzewostanowa w okresowej ocenie stanu lasu
Autorzy:
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/820213.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
uszkodzenia drzewostanow
wskaznik uszkodzenia korony
metoda drzewostanowa
metody badan
lesnictwo
zmiennosc
Źródło:
Sylwan; 2000, 144, 10; 69-81
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wód odciekowych z odpadów wydobywczych na poziom zanieczyszczenia gleby leśnej oraz możliwości jej dalszego użytkowania przez gospodarkę leśną
Effect of water leaking from exploitation wastes on contamination of forest soil and possibility of its further utilisation
Autorzy:
Cieśla, A.
Gil, W.
Powiązania:
https://bibliotekanauki.pl/articles/987142.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
zanieczyszczenia gleb
wody odciekowe
szkody przemyslowe
uszkodzenia drzewostanow
gleby lesne
wlasciwosci chemiczne
zasolenie gleb
chlorki
siarczany
samooczyszczanie
rekultywacja terenow
industrial damage
soil salinity
chlorides
sulphates
forest reclamation
Opis:
Forestry management in anthropo−transformed habitats is characterized by a very high risk. The formation of waste as well as flooding of tree stands by salty water from different sources of mining and processing of coal is an important issue on the industrial areas. The introduction of the pollution load in the form of saline water leads to increased soil salinity, which can damage or cause the dieback of individual trees, tree stands and whole forest ecosystems. The aim of the research was to (i) analyze the changes in forest soils on the area flooded by water leaked from the waste reservoir, (ii) assess the possibility of this soil self−purification from chlorides and sulfates and (iii) estimate the possibility of reclamation of this land for forestry purposes. The study was conducted in Katowice Forest District (southern Poland). Soil samples for physico−chemical analysis were collected in 2015. The results of chemical analyzes of surface soil layers made in 2013 and 2014 were also used. The content of chlorides and sulphates in the soil was used as one of the key indicators to assess the level of soil salinity. In the year of the damage occurrence, in surface horizons it significantly exceeded the threshold value, but declined in subsequent years to a level below this value even in the area of the greatest damage. However, our analysis indicate an accumulation of chlorides and sulphates in the soil at a depth of 100−120 cm, as well as the accumulation of sodium cations. This demonstrates the difficulties with the self−purification of soil or continuous supply of pollutants from the waste reservoir. Currently, surface soil horizons meet the criteria of not−salinized soils, which does not indicate a need for change in land use. After the surface preparation and technical work used in forestry practice, the damaged area can be designed for the reintroduction of forest trees.
Źródło:
Sylwan; 2017, 161, 07; 573-582
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ na roślinność leśną zanieczyszczeń powietrza emitowanych przez Zakłady Azotowe w Puławach
Vlijanie zagrjaznenijj vozdukha na lesnuju rastitel'nost' izvergaemykh zavodom azotnykh udobrenijj v Pulavakh
The impact of airpollutions emitted by the nitrogen plant in Pulawy on forest vegetation
Autorzy:
Sokolowski, A.W.
Powiązania:
https://bibliotekanauki.pl/articles/823207.pdf
Data publikacji:
1971
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
tereny przemyslowe
Zaklady Azotowe Pulawy
oddzialywanie na srodowisko
zanieczyszczenia powietrza
emisje przemyslowe
oddzialywanie na las
uszkodzenia drzewostanow
zmiany skladu gatunkowego
uszkodzenia drzew
Źródło:
Sylwan; 1971, 115, 03
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielkopowierzchniowa metoda okreslania stopnia uszkodzenia drzewostanow debowych i bukowych
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/969372.pdf
Data publikacji:
2000
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
uszkodzenia drzewostanow
witalnosc
defoliacja
syntetyczny wskaznik uszkodzenia
drzewostany bukowe
drzewostany debowe
metody badan
metoda wielkopowierzchniowa
lesnictwo
Źródło:
Prace Instytutu Badawczego Leśnictwa. Seria A; 2000, 3[900-904]; 17-33
0369-9870
Pojawia się w:
Prace Instytutu Badawczego Leśnictwa. Seria A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Użytkowanie lasu a ochrona środowiska leśnego
Lesopolzovanie i okhrana lesnojj sredy
Forest exploitation and protection of forest environment
Autorzy:
Kaminski, E.
Powiązania:
https://bibliotekanauki.pl/articles/824653.pdf
Data publikacji:
1988
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
uzytkowanie lasu
ochrona lasu
pozyskiwanie drewna
uszkodzenia drzewostanow
Źródło:
Sylwan; 1988, 132, 10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie i monitoring lasu a ustalanie stref uszkodzenia lasu i stopni uszkodzenia drzewostanów
Forest management and monitoring versus establishment of forest damage zones and degrees of stand damage
Autorzy:
Gołojuch, P.
Beker, C.
Powiązania:
https://bibliotekanauki.pl/articles/989694.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
monitoring
uszkodzenia drzewostanow
strefy uszkodzen lasu
stopien uszkodzenia
zagrozenia lasu
forest damage
management
Opis:
In years 1970−2002, in Poland forest damage zones were distinguished within the framework of forest management works. Since 2003 degrees of stand damage have been determined. This study presents basic characteristics of the methods employed for these purposes concerning the necessity to elaborate a new method of determination of degrees of stand damage. The establishment of forest damage zones and degrees of stand damage cannot be treated as one of the forms of monitoring because in order to determine their range, no observations on the permanent plots and – within their confines – on the same sample trees were and are carried out. Over the time, evaluation criteria or/and ways of establishment of the extent of damages have been undergoing considerable and significant methodological changes and modifications. In terms of dynamically altering quantitative and qualitative impact of different factors affecting forest environment, 10 years period of observation repeatability is far too long to use this information as an indicator of occurring changes. In practice, it was and it still is impossible to determine objectively trends and directions of changes taking place in a given object, which is one of the objectives of forest monitoring. The concept of damage zone should be understood not only as an area of grouping the stands of the same or similar damage, but, equally importantly, as those which happen to be under the influence of the same factor exerting its influence at the same level. Therefore, when determining the range of zones, the following three actions should be taken into consideration simultaneously: complex crown evaluation, dendrometric measurements and monitoring of the effect of the causative agent. In order to trace the trends of the changes on the study plots, the same sample trees must be subjected to evaluations and measurements. From the point of view of the time perspective, examinations should be carried out every 5 years (assessment of the crown condition and dendrometric measurements) or on a continuous basis (monitoring of the effect of the causative agent) irrespective of the forest taxation. It is also advisable to consider possible use of contemporary remote sensing techniques to determine the range of zones and degrees of damage, which preliminary can be used to establish the range, intensity and kind of the damages.
Źródło:
Sylwan; 2015, 159, 01; 13-21
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stopień uszkodzenia drzewostanów świerkowych Gór Sowich
Damage to spruce stands in the Sowie Mountains
Autorzy:
Dmyterko, E.
Kluziński, L.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/990883.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Gory Sowie
drzewostany swierkowe
uszkodzenia drzewostanow
swierk pospolity
Picea abies
uszkodzenia drzew
korony drzew
reakcje przyrostowe
warunki srodowiska
degree of damage
growth response
picea abies
poland
Opis:
The aim of the research was to assess the degree of damage to spruce trees and stands and to study their growth responses to the changing environmental conditions in the Sowie Mountains (Central Sudety Mts.). To assess the degree of damage to trees, three methods based on crown characteristics were used. The types of growth responses of trees to changing environmental conditions were additionally taken into account in one of the methods. Regardless of the assessment method, spruce stands in the Sowie Mountains demonstrated a high level of damage. The poorest growth conditions were found in the period 1966−1980 when a large number of trees showed negative growth responses, indicating a decrease in radial increment. The period 1996−2010 showed an improvement in the growth conditions of trees because the proportion of trees with negative growth responses decreased, while the proportion of trees with positive growth responses increased. It was also found that the growth conditions for spruce were more favourable in the lower montane forest zone (above 600 m a.s.l.), and less favourable at the foothills (below 600 m a.s.l.), which may be caused by the competition of beech replacing spruce in the lower locations in the mountains.
Źródło:
Sylwan; 2014, 158, 03; 173-182
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stopień uszkodzenia drzewostanów jodłowych Beskidu Niskiego
Degree of damage to silver fir stands in the Beskid Niski Mts.
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/989946.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany jodlowe
uszkodzenia drzewostanow
jodla pospolita
Abies alba
uszkodzenia drzew
korony drzew
reakcje przyrostowe
warunki srodowiska
radial increment
environmental changes
primary crown
secondary crown
abies alba
Opis:
The main aim of the research was to study trees growth responses to the changing environmental conditions and to assess the degree of damage to trees taking into consideration their secondary crown. Based the material from plots established in 12 silver fir stands (tab.), chronologies were developed for trees in various age classes (fig. 1). 1950 saw a downward trend in the radial growth that continued till 1985, to be followed by an upturn lasting till 2000, when the radial growth stabilised. No significant changes in tree−growth were observed in the group of the youngest trees. Three types of growth response to environmental changes (positive, neutral and negative) were distinguished in the last three 15−year−long periods. In years 1970−1984 the largest proportion of firs indicated negative growth responses, while firs with positive response dominated in the period 2000−2014 (fig. 2). The period 1970−2014 saw a steady increase in the mean value of growth responses. The assessment of the top−crown growth (feature B) showed that more than 50% of the trees showed inhibited growth (fig. 3). The assessment of tree vitality (feature C) confirmed the dominance of trees with moderate crown vitality. The vitality of the secondary crowns (Zw) situated below the primary crowns (Zp) of firs was assessed on the basis of crown density and its length (formula [1]). Incorporating Zw in the assessment of tree damage (formula [2]) resulted in an increase in the vitality of the whole crown (Z) (fig. 4). Based on the defoliation, 73% of trees were found to be within damage class 2 (fig. 5). Another method of damage to trees determination was adopted (formula [3]) to assess the damage to fir stands and showed that the largest proportion of trees was with moderate damage (fig. 6). The damage index values obtained with this method were lower compared to the method that considers the defoliation exclusively. Even lower index values were obtained while using the method based on both damage index W and tree−growth response. Of the three discussed damage assessment methods, the most accurate is the method based on damage index Wz, taking into account the growth response of the entire crown (Z).
Źródło:
Sylwan; 2015, 159, 11; 893-904
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stopień uszkodzenia drzewostanów bukowych Ziemi Kłodzkiej
Degree of damage to beech stands in the Klodzko Region
Autorzy:
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/989030.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Ziemia Klodzka
drzewostany bukowe
uszkodzenia drzewostanow
defoliacja
witalnosc
syntetyczny wskaznik uszkodzenia
stopien uszkodzenia
drzewa lesne
buk zwyczajny
Fagus sylvatica
uszkodzenia drzew
reakcje przyrostowe
przyrost piersnicy
fagus sylvatica
damage to trees
Opis:
The study presents the assessment of damage to beech stands using four methods, including that taking into account the radial increment. The condition of stands in 2016, and the growth response of trees to the environmental changes since 1956 are described. The measurements and observations were carried out on 18 sample plots (tab. 1) located in south−western Poland. The mean defoliation accounts for 32.5% ranging from 16.9 to 56.9%, while the average defoliation class value is 1.62 ranging from 0.75 to 2.38. The proportion of trees was found to be the highest (approx. 60%) in class of moderate damage (fig. 1a). The mean value of vitality is 1.17 (ranging from 0.75 to 2.38). The proportion of trees in vitality classes differs significantly from that in defoliation classes. The highest number of trees (approx. 80%) was found to be within damage class of weakened trees (fig. 1b). The assessment of damage to trees based on synthetic damage index (defoliation and vitality combined using formula [1]) is similar to the assessment method based on tree vitality. The mean value is 1.07, ranging from 0.63 to 1.70. The largest proportion of trees (over 80%) was found to be within class 1 (fig. 1c). The index SynZ combines defoliation and vitality, as well as the growth response of trees over the last 15 years according to formula [2]. Its values range from 0.82 to 1.79 with 1.21 on average. The largest proportion of trees (over 70%) was found to be within damage class 1 (fig. 1d). The response of trees to environmental changes is an important indicator of the growth conditions. The proportion of trees with negative growth responses increases from period to period, while the proportion of trees with neutral and positive responses decreases (fig. 2). The analysed beech stands show fairly large differences in the level of the damage. The most likely cause of this situation are droughts occurring in recent growing seasons, especially in 2012. Of the methods deployed to assess damage to beech trees, the morphological−growth one is the most accurate, but the most laborious. Therefore, it is preferable to use a synthetic damage index as both tree defoliation and vitality can also be assessed outside the growing season.
Źródło:
Sylwan; 2017, 161, 05; 430-439
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stochastyczny model określania miąższości złomów, wywrotów i posuszu
Stochastic model for calculating the volume of wind-broken and wind-thrown wood as well as of deadwood
Autorzy:
Bruchwald, A.
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/990021.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
uszkodzenia drzewostanow
zlomy
wywroty
posusz
miazszosc
modele stochastyczne
damage
risk model
wind
Opis:
The most recent version of the wind damage risk model was published in 2012. The model is based on eleven stand characteristics of which stand damage that occurred in the last decade is among the most important ones. It is expressed as the volume of wood obtained from wind−broken and wind−thrown trees as well as of deadwood. Not taking this feature into consideration would undermine the value of this damage risk factor. In the study, the material contained in the database of the State Forests Information System was used to develop a model for calculating the volume of wood obtained from wind−broken and wind−thrown trees as well as of deadwood. This allowed to apply the stand damage risk model to determine, inter alia, the risk of damage in a multi−variant forecast of timber resources.
Źródło:
Sylwan; 2014, 158, 04; 258-266
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ryzyko powstawania szkód w drzewostanach poszczególnych nadleśnictw Polski
Risk of damage to stands in individual forest districts in Poland
Autorzy:
Bruchwald, A.
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/995538.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
nadlesnictwa
uszkodzenia drzewostanow
szkody w lesie
ryzyko wystapienia
zroznicowanie regionalne
wspolczynniki reginalnego ryzyka uszkodzenia drzewostanow
stand damage risk model
stand damage risk factor
regional damage risk factor
forest district
Opis:
In the study, regional stand damage risk factors were developed for individual forest districts in Poland. For this purpose we used the materials contained in the database of the State Forests Information System (SILP), which relate to the volume of wood obtained from windfalls and deadwood in all forest districts in Poland in the years 2005−2010. The criterion proposed was the maximum annual damage during the period under review expressed as volume of wood obtained from wind−thrown and wind−broken trees, as well as deadwood per hectare of forest stands older than 40 years in a forest district. This allowed to assign regional damage risk factor values to individual units. They range from 0, corresponding to a very low damage risk to stands, to 4, indicating a very high risk. Presented map of the regional stand damage risk factors for the forest districts in Poland is the graphic result of the analysis.
Źródło:
Sylwan; 2012, 156, 01; 19-27
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
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