Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "forest district" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 39
Tytuł:
Content of Cu, Zn and Mn in the eroded soils of a small arable-forest catchment of West Pomerania [The Chojna District]
Autorzy:
Chudecka, J
Powiązania:
https://bibliotekanauki.pl/articles/1449154.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Pomeranian region
Polska
arable-forest catchment
water erosion
Chojna district
erosion process
geochemical background
soil
soil property
eroded soil
degraded ecosystem
anthropogenic ecosystem
heavy metal
Opis:
The aim of this paper was to assess differentiation in the total content of Cu, Zn and Mn under the influence of water erosion. The present author investigated parent material, eroded soils and delluvial sediments of a small arable-forest catchment of the moraine zone in West Pomerania. The average content of heavy metals in the parent rock (boulder light loam) were assumed as geochemical backgrounds of Cu, Zn and Mn. It was found out that erosion process caused differentiation in heavy metals. Zinc was the most mobile in this transportation; Mn was not sensitive to it. Delluvial sediments from arable (drainage) depressions had a clearly lower content of Cu and Zn than the parent material. It was also noted that Cu and Zn content in the forest area was lower than in the arable area of a similar relief and soil composition. Mn content was always higher in the arable soils. Soil-forming processes influenced differentiation of heavy metals in the vertical soil profile. The humus and Bt horizons (accumulation of silicate clay) were enriched with heavy metals. A decrease of heavy metal content was noticed in the eluvial horizon (Eet - outwash of silicate clay). The humus horizon of the investigated soil had, a natural (not increased) content of Cu, Zn and Mn.
Źródło:
Acta Agrophysica; 2001, 51; 21-28
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climatological characterisation of the area of the Carpathian Regional Gene Bank in the Wisla Forest District
Autorzy:
Feliksik, E
Durlo, G.
Powiązania:
https://bibliotekanauki.pl/articles/41320.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Wisla Forest District
Carpathian Regional Gene Bank
gene bank
climate
meteorology
Silesian Beskids Mountains
humidity
rainfall condition
thermal condition
Opis:
The paper summarises the results of climatological studies concerning the area of the Carpathian Regional Gene Bank station located in the Wisła Forest District. The work provides raw meteorological data, daily, monthly, seasonal and annual records, and various indices such as the pluvial-thermal index, biometeorological index, Sielianinow’s index and de Martonne’s index. In addition, the detailed profiles of thermal, humidity and rainfall conditions are presented against a background of the general synoptic situation.
Źródło:
Dendrobiology; 2004, 51 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species conversion of spruce stands in the Wisła Forest District
Autorzy:
Skrzyszewski, J
Skrzyszewska, K.
Powiązania:
https://bibliotekanauki.pl/articles/41743.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Wisla Forest District
spruce
Picea abies
Istebna spruce
seed stand
spruce stand
forest tree
species conversion
Opis:
The paper provides some guidelines on the choice of the target species compositions for plantations that would replace monocultural spruce stands growing on the sites of the Silesian Beskid Mts. Part of the guidelines relates to the rules governing the sequence in which the monocultures will be converted into mixed stands. It is suggested that those rules should be combined with the principles of the establishment of progenyplantations. The seed stands of the Istebna spruce are experimentally divided into four categories according to their abilityto perform the function of a seed stand. The following features of the stands are analysed: vitality, density, stage of regeneration, protective and cultural functions. The paper contains also an outline of the methods of species conversion and the relevant references.
Źródło:
Dendrobiology; 2004, 51 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of soils and plants on two selected research areas in the Smoldzinski Las district within the Slowinski National Park
Charakterystyka gleb oraz szaty roślinnej na dwóch wybranych działkach badawczych w obwodzie Smołdziński Las w obrębie Słoeińskiego Parku Narodowego
Autorzy:
Trojanowski, J.
Parzych, A.
Powiązania:
https://bibliotekanauki.pl/articles/85141.pdf
Data publikacji:
2005
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
soil
plant cover
research area
Smoldzinski Las district
Slowinski National Park
forest ecosystem
flora
ground water
organic carbon
soil profile
vegetation season
Opis:
The soils studied are situated in the northern part of Gardno-Łebsko Lowland, which is part of the Słupsk Plain. For laboratory research two parcels were chosen, with the area of 0.5 ha, situated in protected district of Smołdzinski Las. The research of the selected parcels shows great differences in the construction of soil and flora profiles. What they have in common is the high level of groundwater, which is influenced by slight changes during the vegetation season. The investigated soils have the acid reaction in all parts of their profile. The lowest values observed in levels of moulder differed from 3.56 to 3.74 pHH20.
Badane gleby występują w północnej części Niziny Gardniensko-Łebskiej, wchodzącej w skład Równiny Słupskiej. Do badań laboratoryjnych wybrano dwie działki o powierzchni 0,5 ha każda, znajdujące się na terenie Obwodu Ochronnego Smołdziński Las. Na podstawie dokonanych badań obu analizowanych działek stwierdzono, że różnią się one znacznie budową profili glebowych oraz szatą roślinną. Ich wspólną cechą jest dość wysoki poziom wód gruntowych, ulegający niewielkim zmianom w okresie sezonu wegetacyjnego. Badane gleby charakteryzują się odczynem kwaśnym w całym profilu. Najniższe wartości pH obserwuje się w poziomach próchnicy nakładowej i poziomach próchnicznych, gdzie wahają się od 3,56 do 3,74 pHH2O.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2005, 09
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isotopes: caesium-137 and potassium-40 in soils of the powiat of Garwolin [Province of Mazowsze]
Izotopy cezu-137 i potasu-40 w glebach powiatu Garwolin [wojewodztwo mazowieckie]
Autorzy:
Krolak, E
Krupa, B.
Sarnowska, K.
Karwowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/14715.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
forest soil
Garwolin district
radioactive isotope
chemical property
fallow
137 caesium
soil
potassium-40
field
physical property
Mazovia region
Opis:
In 2005, in the administrative district (powiat) of Garwolin (the Province of Mazowsze), the samples of forest, cropland and fallow land soils were collected from three depths: 0-3 cm, 3-7 cm, 7-12 cm. The litter from the sampling sites located in forests was also collected for studies. In the samples, the contents of isotopes 137Cs and 40K were measured. The highest amount of 137Cs was measured in litter and the upper layer of forest soils; the content of the isotope decreased in deeper layers of the soil. Forest soils were the richest in 137Cs; fallow and cropland soils contained less of this isotope. The content of 40K in forest and fallow land soils did not depend on the depth from which the samples were collected. The highest amount of 40K isotope was found in arable soil, the lowest - in forest soils. The content of 137C in the soils decreased as the soil reaction increased but rose at higher organic carbon content. The content of 40K isotope correlated negatively with the soil reaction and with the content of sand fraction but it correlated positively with the content of clay fraction.
W 2005 r., w glebach powiatu Garwolin (woj. mazowieckie) z trzech poziomów: 0-3 cm, 3-7 cm i 7-12 cm pobierano do badań próbki gleb leśnych oraz nieużytkowanych i użytkowanych rolniczo jako pola uprawne. Dodatkowo w punktach poboru gleb leśnych pobrano do badań ściółkę leśną. W próbkach oznaczono zawartość izotopów 137Cs i 40K. Największą zawartość 137Cs zmierzono w ściółce i powierzchniowej warstwie gleb leśnych, w głąb gleby zawartość izotopu się zmniejszała. Najbardziej wzbogacone w 137Cs były gleby leśne, gleby nieużytkowane rolniczo i pola uprawne zawierały mniejsze ilości tego izotopu. W wierzchnich warstwach gleb leśnych i nieużytków zawartość 40K nie zależała od głębokości poboru prób, natomiast była zależna od sposobu użytkowania gleby. Największe ilości izotopu 40K zmierzono w badanej warstwie gleb ornych, najmniejsze w glebach leśnych. Zawartość 137Cs w badanych glebach zmniejszała się wraz z ze wzrostem odczynu gleby i wzrastała wraz z zawartością węgla organicznego. Zawartość potasu-40 była skorelowana ujemnie z odczynem gleby i zawartością frakcji piasku oraz dodatnio z zawartością frakcji iłu.
Źródło:
Journal of Elementology; 2008, 13, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water relations during two hydrological years in swampy areas in the Siemianice Forest Experimental Station
Autorzy:
Krysztofiak, A.T.
Miler, A.T.
Powiązania:
https://bibliotekanauki.pl/articles/62494.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
water relation
hydrology
swamp area
Siemianice Forest Experimental Station
forest experimental station
ground water level
surface water level
climate change
Marianka Forest District
forest environment
water resource
water condition
Opis:
In recent years researchers have focused increasingly on climatic changes taking place in nature (increasing air temperature, decreasing precipitation totals). These imply changes in components of water balances and in practice changes in water relations both on the global and local scale. At present site overdrying is considered to be the biggest threat [Pierzgalski 2007]. The aim of the study is to present water relations in the forest swampy areas in a forest district (the Marianka Forest District) of the Siemianice Forest Experimental Station in hydrological years of 2005 and 2006. The investigations showed that analysed catchments, despite being located in swampy areas, are characterized by periods of water depletion in ditches. In analysed watercourses runoff was recorded from mid-November 2004 to the beginning of June 2005, while in the next hydrological year it was recorded again from mid-November, but this time longer to mid-June 2006. In relation to ground water of the catchment area a predictable relationship was observed of the water table level at the locations of observation wells. The wells located in the top sections of the catchment had water table the deepest below the ground level, while wells in valleys had water tables at the most shallow levels. It may also be stated that wells situated in higher areas (watershed), are characterized by a slightly bigger variation in the ground water table during the year than it was the case with wells located at lower points (in valleys). Both analyzed hydrological years (2005 and 2006) showed a similar pattern of ground water table at individual sites. Moreover, a marked cyclicity was recorded in the elevation of the water table, i.e. water level rising in autumn and lowering in summer months (as a result of changes in plant transpiration). The relationship of ground water levels with different forest sites found in the analyzed catchments confirms the dependence on the site moisture level variant. Water was lying at the most shallow levels in the ash-alder swamp forest site – a marshy site, while it was markedly the deepest in fresh mixed coniferous forest sites – a fresh site type. When analyzing changes in the ground water levels in terms of stand age classes we may clearly observe the seasonal variation and similar patterns of changes. Water lay the most shallow in stands of age classes V and VI. The level was significantly deepest in age class IV. The above dependencies pertained both to the hydrological year 2005 and 2006.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2008, 06
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intra-population variability of Picea abies from Zwierzyniec Lubelski and Blizyn (Poland)
Autorzy:
Kowalczyk, J
Markiewicz, P.
Matras, J.
Powiązania:
https://bibliotekanauki.pl/articles/41233.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
intrapopulation variability
family variation
heritability
plant population
Zwierzyniec Lubelski region
Blizyn region
Kutno Forest District
Polska
Opis:
The study investigates the intra-population variability of the growth and quality traits of Norway spruce populations from Bliżyn and Zwierzyniec Lubelski. The two populations are included in the IUFRO 1972 experiment and exhibit a high growth dynamics and a narrow crown form. The research was carried out on the experimental plot established in 1996 in Chrosno (Kutno Forest District) using 8228 two-year-old seedlings planted in a single-tree plot design at a spacing of 1.5 × 1.5 m. The seedlings represent 191 open-pollinated families, among them 93 families of Norway spruce from the Bliżyn region and 98 families from the Zwierzyniec Lubelski region. The height, height increment and DBH of trees were measured periodically, and some quality traits were assessed. The last results come from the measurements done on the trees aged 10 years. It was found that the differences between the two populations of Norway spruce are statistically nonsignificant but both of them show wide within-population variability. This suggests that they have the potential to flexibly respond to future changes in the growth conditions or to seed transfer to other seed zones. Survival in the environmental conditions of the experiment was independent of family.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nicienie trawieńca i płuc występujące u jeleni w Nadleśnictwie Strzałowo (Puszcza Piska)
Abomasum and lung nematodes of red deer in Strzalowo Forest District [Piska Primeval Forest]
Autorzy:
Demiaszkiewicz, A.W.
Pyziel, A.
Lachowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/1011701.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
pasozyty wewnetrzne
nicienie plucne
pasozyty zwierzat
zwierzeta lowne
trawieniec
nicienie zoladkowo-jelitowe
pluca
jelen europejski
Cervus elaphus
Nadlesnictwo Strzalowo
cervus elaphus
parasite
gastric nematode
abomasum
pulmonary nematode
strzałowo forest district
Opis:
The examination of 18 abomasums and 23 excrement samples of red deer from the Strzałowo Forest District (Pisz Primeval Forest) showed infestation of these animals with 6 gastric−intestinal nematode species (Spiculopteragia boehmi, Ostertagia leptospicularis, Ostertagia kolchida, Spiculopteragia mathevossiani, Trichostrongylus axei and Nematodirus roscidus) and 3 pulmonary nematode species (Elaphostrongylus cervi, Varestrongylus sagittatus and Dictyocaulus eckerti). As a result of performed disinfestation, the average infestation level of the animals with S. boehmi nematodes and female nematodes from the family Ostertagiinae was reduced and the infestation with D. eckerti was eliminated.
Źródło:
Sylwan; 2009, 153, 01; 57-61
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sadzonki mikoryzowane grzybem Hebeloma crustuliniforme wprowadzone na gruntach leśnych, porolnych i nieużytkach – czy warto?
Seedlings mycorrhized with the fungus Hebeloma crustuliniforme planted on former agricultural land - is it worthy?
Autorzy:
Zagrobelna, G.
Powiązania:
https://bibliotekanauki.pl/articles/1011866.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Pinus
rozwoj roslin
grunty porolne
Nadlesnictwo Oleszyce
buk
lesnictwo
Quercus
grunty lesne
Fagus
nieuzytki
zalesianie
wzrost roslin
sosna
sadzonki mikoryzowane
dab
drzewa lesne
seedling
mycorrhization
oleszyce forest district
Opis:
The study evaluates the development of mycorrhized and non−mycorrhized seedlings in different forest habitats from dry coniferous to fresh broadleaved forests under the management of the Oleszyce Forest District.
Źródło:
Sylwan; 2009, 153, 04; 266-273
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zarys historii lasow Nadlesnictwa Rudy Raciborskie do roku 1945
The outline of history of forests in the Rudy Raciborskie Forest District until 1945
Autorzy:
Pietras, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1012020.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
historia
lasy
lesnictwo
Nadlesnictwo Rudy Raciborskie
rudy raciborskie forest district
the cistercians
history
Opis:
Sudden progress of monastic metallurgy at the end of the Thirty Years War created an increased demand for charcoal, which caused in second half of the 17th century changes from exploitation to rational forest economy. During 1690s, the Cistercians from Rudy ran on a big scale logging and artificial revival of forests of today's Rudy Raciborskie Forest District, so that they become precursors of modern forestry not only in Upper Silesia, but also throughout Poland.
Źródło:
Sylwan; 2009, 153, 02; 99-107
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena zdrowotności dębu na podstawie stopnia ubytku aparatu asymilacyjnego wybranych drzewostanów dębowych Nadleśnictwa Wołów
Assessment of the health condition of oak on the basis of the degree of assimilation apparatus losses in oak stands of the Wolow Forest District
Autorzy:
Szewczyk, W.
Czeryba, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1009254.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Wolow
drzewostany debowe
drzewa lesne
dab
Quercus
stan zdrowotny drzew
aparat asymilacyjny
defoliacja
stopien defoliacji
oak
decline
defoliation
wołów forest district
Opis:
Distinct symptoms of oak decline, which occurred in the year 2004 on the area of the Wołów Forest District, prompted to determine the health condition of this species stands according to the European criteria i.e. on the basis of the defoliation degree. Oak stands in that area are exposed to the activity the Legnicko−Głogowski Copper Industry Region. Besides, the lowering of Odra riverbed, which in that area reaches 3 m, also exerts a significant effect on the functioning of the ecosystems. An estimation of the assimilation apparatus losses was carried out at the turn of July and August in 2005 and 2007 on the basis of an atlas elaborated by Borecki and Kęczyński [1992]. Data obtained in this way permitted to classify each tree into four defoliation classes from 0 to 3. In case of a dead tree, it was classified into the fifth class encoded as 4. In the first year of observation, the highest frequency (35.0%) was observed in defoliation class #2 i.e. in stands with medium damages. Class #1 included 33.6% of trees. The assessment was repeated two years later. The number of trees without defoliation symptoms decreased four times, while the number of trees with a strong defoliation and of dead trees increased.
Źródło:
Sylwan; 2010, 154, 02; 100-106
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The concept for protection of flood plain forests in the Uroczysko Warta forest district
Autorzy:
Kaminski, B.
Miler, A.T.
Grajewski, S.
Okonski, B.
Schwartz, K.
Powiązania:
https://bibliotekanauki.pl/articles/59662.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
Uroczysko Warta forest district
flood plain forest
ground water level
small water retention
protection concept
forest ecosystem
river regulation
Jeziorsko reservoir
Warta River
hydrological condition
engineering infrastructure
Opis:
Flood plain forests are the richest and highly picturesque forest ecosystems. Unfortunately, river regulation and flood control contribute to their degradation. In Poland only 0.2% of total area is covered by flood plain forests. The Uroczysko Warta forest district constitutes one of the most important clusters of these sites. The construction of the Jeziorsko reservoir in the middle course of the Warta River has contributed to changes in the river regime (reduced flooding areas and decreased flooding frequency). It seems that the use of simple land improvement systems, i.e. gates, river bars and culverts with flap check valves, may result in the recreation of advantageous hydrological conditions. In such a case storage volume of oxbow lakes would be increased and ground water would be maintained at a higher level over longer periods of time. This study presents a concept for protection of the Uroczysko Warta, thanks to the construction of appropriate engineering infrastructure.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2010, 11
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water relations in forested areas in the Tomaszow Lubelski forest division
Autorzy:
Miler, A.T.
Bronikowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/61642.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
small water retention
water retention
forest catchment
forest area
hydrological measurement
meteorological measurement
small catchment
Krynica River
Tomaszow Lubelski Forest Division
water balance
run-off
reservoir
Belzec Forest District
fire protection system
Opis:
The paper presents results of observations and hydro-meteorological measurements in a small catchment of the Krynica River, representative of the Tomaszów Lubelski Forest Division. The presented analysis of components of the water balance, particularly the volume of runoff, indicates the advisability of the construction of two reservoirs in the Bełżec Forest District. These reservoirs are to serve as elements of the fire protection system and the water retention system. Through damming culverts they will be connected with the Krynica River. Presented results constitute the hydrological characteristic of the catchment prior to the change in the engineering infrastructure related with the construction of the reservoirs. A complete evaluation of the efficiency of the investment will be possible after the reservoirs have been put in operation.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2010, 11
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analyses of spatial structure and selected measures of growth of Sorbus torminalis in Forest District Jamy (northern Poland)
Autorzy:
Bednorz, L.
Kazmierczak, K.
Kaczmarek, L.
Powiązania:
https://bibliotekanauki.pl/articles/41095.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
spatial structure
plant growth
Sorbus torminalis
service tree
wild plant
growing space
tree crown
conservation
competition
Polska
Jamy Forest District
Opis:
The subject of the study was a dynamic population of Sorbus torminalis resulting from spontaneous regeneration from seeds in northern Poland. The population, occupying a fenced plot of 1.72 ha in Forest District Jamy, amounted to 579 individuals. The spatial structure of population and some basic individual traits of trees were recorded, then the growing space of individual trees was examined. The following measures of tree growing space were investigated: crown diameter and projection area, and tree volume. The spatial structure of population was non-random, and there was evidence for effects of population density on tree performance. The observations have to be continued in order to describe optimal growing space of wild service tree; the results could be used to improve in situ conservation of this rare and valuable species.
Źródło:
Dendrobiology; 2012, 67
1641-1307
Pojawia się w:
Dendrobiology
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
Wyświetlanie 1-15 z 39

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies