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Wyświetlanie 1-8 z 8
Tytuł:
Lasy zielonogorskie, ich specyfika i zagrozenia
Autorzy:
Duda, S.
Powiązania:
https://bibliotekanauki.pl/articles/814917.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zagrozenia lasu
szkody w lesie
czynniki biotyczne
Bory Lubuskie
Bory Dolnoslaskie
czynniki antropogeniczne
lasy
lesnictwo
RDLP Zielona Gora
Bory Zielonogorskie
Źródło:
Sylwan; 1999, 143, 07; 89-98
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zarażenie jeleni i sarn nicieniami płucnymi z rodziny Protostrongylidae w Borach Tucholskich
Infection of red deer and roe deer with lung nematodes from family Prostostrongylidae in Bory Tucholskie
Autorzy:
Demiaszkiewicz, A.W.
Lachowicz, J.
Kuligowska, I.
Goliszewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/1015948.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Bory Tucholskie
nicienie plucne
choroby inwazyjne
zwierzeta lowne
lowiectwo
jelenie
Prostostrongylidae
sarny
choroby zwierzat
zagrozenia zwierzat
cervidae
bory tucholskie
parasites
parasitic diseases
lung nematodes
Opis:
A study was carried out on faeces samples from red deer and roe deer in the area of Forestry Tuchola and determined that these animals were infected with three species of lung nematodes: red deer – Elaphostrongylus cervi and Varestrongylus sagittatus, and roe deer – Varestrongylus capreoli. A high level of infection can cause death to red deer and roe deer calves.
Źródło:
Sylwan; 2007, 151, 02; 3-6
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oszacowanie biomasy korzeni w drzewostanach sosnowych Borów Lubuskich
Assessment of the belowground biomass in Scots pine stands of Bory Lubuskie
Autorzy:
Bijak, S.
Zasada, M.
Powiązania:
https://bibliotekanauki.pl/articles/1015889.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
biomasa
drzewostany sosnowe
Bory Lubuskie
szacowanie
korzenie
sosna zwyczajna
lesnictwo
wskaznik R-S
rownania allometryczne
Pinus sylvestris
drzewa lesne
belowground biomass
allometric equations
root to shoot ratio
scots pine
bory lubuskie
Opis:
Paper presents the results of assessment of root biomass in Scots pines from the Bory Lubuskie forests. For an absence of original formulae for that region, allometric equations and root to shoot ratios taken from literature were applied. Average belowground biomass in the analysed stands amounted between 30,062 and 39,819 t/ha depending on the applied method. In general the older the stand as well as the more moist and fertile the habitat were, the higher values of the roots biomass were obtained.
Źródło:
Sylwan; 2007, 151, 12; 21-29
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Środowiskowe uwarunkowania inwazji tawuły kutnerowatej (Spiraea tomentosa L.) w Borach Dolnośląskich
Environmental determinants of the steeplebush (Spiraea tomentosa L.) invasion in the Bory Dolnoslaskie Forest
Autorzy:
Wiatrowska, B.
Danielewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/989618.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
krzewy lesne
gatunki inwazyjne
tawula kutnerowata
Spiraea tomentosa
wystepowanie
rozprzestrzenianie sie gatunkow
Bory Dolnoslaskie
spiraea tomentosa
alien species
invasive shrub
Opis:
The steeplebush is a shrub growing naturally in North America. In Europe this species has been cultivated as an ornamental plant since the 18th century. It has been observed in spontaneously developing secondary localities in such countries as Belgium, Denmark, Sweden, Norway and Germany. In Poland there are three regions in which Spiraea tomentosa is known to be a permanently established anthropophyte: Puszcza Drawska, Bory Niemodlińskie and Bory Dolnośląskie forests. The greatest number of localities of this shrub can be found in the extensive area of the latter, where its expansion has caused significant changes in the natural environment and problems in woodland management. Therefore a research was carried out to find what conditions made the steeplebush ready for invasion and what types of plant communities were especially susceptible to it. The information about the distribution of S. tomentosa in the Bory Dolnośląskie Forest (SW Poland) was collected during field observations in the years 2011−2014. We also verified and used the results of a survey made in 2011 in three forest districts located in the study area: Ruszów, Węgliniec and Wymiarki. The analysis concerned the frequency of the steeplebush in the forest environment in terms of the forest habitat type, species composition, and stand growth stage as well as in non−forest environments like meadows, peatland, margins of drainage ditches, etc. Phytocoenoses in the habitats of humid mixed coniferous forests and humid coniferous forests with mature tree stands dominated by birches or alders were found to be forest communities the most susceptible to colonisation by S. tomentosa. Especially susceptible to steeplebush invasion were also forest cultures on those habitats. Much fewer steeplebush localities were recorded on fresh and mixed coniferous forests as well as fresh broadleaved forests. In a non−forest environments the steeplebush was mostly noted on margins of drainage ditches. The extensive system of such man−made environmental structures in the Bory Dolnośląskie Forest was found to be the most important factor favouring the expansion of S. tomentosa. Thus, the invasion of the discussed species is primarily determined by a large proportion of humid habitats in a single compact woodland complex connected by a dense network of drainage ditches.
Źródło:
Sylwan; 2016, 160, 08; 696-704
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zimowe rozmieszczenie przestrzenne danieli Dama dama w borze sosnowym
Winter spatial distribution of the fallow deer Dama dama in a boreal forest
Autorzy:
Haidt, A.
Fyalkowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/986679.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
ekologia zwierzat
zwierzeta lowne
daniel
Dama dama
rozmieszczenie przestrzenne
uzytkowanie przestrzeni
bor sosnowy
zima
Bory Tucholskie
fallow deer
landscape use
pellet count
pine forest
tuchola forest
Opis:
The fallow deer is a species with a wide range of occurrence that primarily inhabits deciduous and mixed forests in Europe and North America. However, it also inhabits boreal environments that are rich in understory, fields, and meadows. Some parts of Poland have a high density of fallow deer due to human activities. Despite its extensive distribution, many aspects of this species ecology remain unexplored. Our research was performed in Osie and Dąbrowa forest districts in the Tuchola Forest (northern Poland), where the fallow deer is an introduced species. The objectives of the study was to determine the factors influencing the winter spatial distribution of the fallow deer in an environment dominated by Scots pine forests. Using the pellet−group count method, four 100 m2 circular plots (5.6−m radius) were located 100 m apart one from the other on the perimeters of 25 equally distributed 500×500 m squares (16 circles/square) within the research area. The mean density of the fallow deer pellets ranged widely across the study area (0.5–5.6 (±1.27) pellets/square). The most significant factor affecting their winter spatial distribution was distance to water. The redundancy analysis showed that in winter, fallow deer avoids the boreal forests and chooses meadows, pastures, and cultivated fields. The fallow deer in the Tuchola Forest occurred mainly along the watercourses and meadows.
Źródło:
Sylwan; 2018, 162, 07; 572-579
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie trwałości boru chrobotkowego Cladonio-Pinetum Juraszek 1927 na terenie Parku Narodowego "Bory Tucholskie" z wykorzystaniem metody powtórzonej chronosekwencji
Modelling the stability of Cladonia-Scots pine forest (Cladonio-Pinetum Juraszek 1927) within Bory Tucholskie National Park using the repeated chronosequence method
Autorzy:
Zaniewski, P.T.
Potoczny, B.
Matuszkiewicz, J.M.
Powiązania:
https://bibliotekanauki.pl/articles/989562.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
parki narodowe
Park Narodowy Bory Tucholskie
fitosocjologia
bor chrobotkowy
trwalosc zbiorowisk
metody badan
metoda powtorzonej chronosekwencji
zespol Cladonio-Pinetum
91t0 natura 2000 habitat
lichens
detrended correspondence analysis
Opis:
Cladonio−Pinetum Juraszek 1927 forest is protected in Europe as the Natura 2000 habitat. Nowadays its naturalness is often considered to be doubtful. In spite of the many research, the knowledge about ecology and dynamics of this community is still insufficient. The aim of the research is to define the stability of the community within ‘Bory Tucholskie' National Park. The site is located in the area of the best developed patches of the habitat, in north−western Poland. Two datasets of relevés were used. The first comes from published data and includes 123 relevés made in year 2000. The other comes from own fieldworks performed in 2014. Due to the high homogeneity of geology and soils of the study site, repeated chronosequence method could be used to compare both datasets. The information about herb and moss layers of all relevés was compared using DCA method. The change in community was measured as a shift in the position within the main gradient of DCA over 14−year period. It was calculated for 122 pairs of relevés. Than the model of the speed of community change was computed for the main gradient. We used two methods of calculation of duration of the lichen−rich pine forests. The first was based on the calculated ranges of distinguished associations and the other used the model of cover of species connected to Cladonio−Pinetum forest. As the speed of community change in the gradient and the distance between distinguished communities were known, the time of community duration could be computed. According to obtained results, Cladonia−Scots pine forest (Cladonio−Pinetum) and lichen rich fresh pine forest (Leucobryo−Pinetum with Cladonia) of ‘Bory Tucholskie' National Park will last for 64−109 years. This result shows, that the considered Natura 2000 habitat is unstable. It is the possible development stage within managed forest stands and active conservation is necessary where its preservation is needed.
Źródło:
Sylwan; 2016, 160, 05; 397-406
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie roślinności monokultur sosnowych na glebach piaszczystych Borów Tucholskich
Diversity of vegetation in Scots pine monocultures on sandy soils in the Bory Tucholskie
Autorzy:
Stefańska-Krzaczek, E.
Faltynowicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/990036.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Bory Tucholskie
gleby piaszczyste
drzewostany sosnowe
zespol Leucobryo-Pinetum
monokultury sosnowe
roslinnosc
zbiorowiska roslinne
sklad gatunkowy
leucobryo−pinetum
vegetation classification
stand rotation
coniferous forest
low−nutrient forest sites
Opis:
Scots pine stands are the most important forest type in Poland and the differentiation of the natural vegetation in these forests is well known. However, the intensive utilization causes the formation of the secondary communities, so that further studies of the vegetation diversity should be carried out with taking into consideration stand age and homogeneity of site conditions. The aim of this work is to assess the diversification of plant communities across the gradient of tree stand age. Scots pine stands on oligotrophic sites of the Przymuszewo Forest District were examined with dividing into six age classes ( 10, 11−20, 21−40, 41−60, 61−80, 81−120 years old). Numerical analysis allowed to differ 4 plant communities: non−forest community of Placynthiella−Cladonia sp. div. related to young stands before crown closure ( 10 years old), secondary forest community of Pinus sylvestris−Cladonia subulata related to young stands just after crown closure (11−20 years), forest communities of Leucobryo−Pinetum variant with Cladonia and typical variant – both related to stands older than 20 years. The identified communities differ in terms of species richness and vertical structure, but they are repetitive combinations of species which can be classified within hierarchical syntaxonomical system. They show common features with the communities of south−western Poland, but differ from plant communities of managed Scots pine forest in the continental part.
Źródło:
Sylwan; 2014, 158, 02; 99-106
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zgrupowania biegaczowatych jako zooindykator presji turystyki żeglarskiej w ekotonach leśno−jeziornych
Assemblages of carabid beetles as zoo-indicator of water tourism impact in forest-lake ecotones
Autorzy:
Skłodowski, J.
Mądrzejewska, K.
Powiązania:
https://bibliotekanauki.pl/articles/1013121.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
struktura zgrupowan
oddzialywanie na srodowisko
bory
lesnictwo
ekoton jezioro-las
bioindykacja
zeglarstwo
ols
liczebnosc
antropopresja
Lasy Mazurskie
lesne kompleksy promocyjne
ekotony
bioindykatory
biegaczowate
Carabidae
srednia biomasa osobnicza
carabidae
tourism
forest−lake ecotone
Opis:
Changes in structure of carabid assemblages caused by tourism were observed. They turned to be smaller in comparison to those caused by clear−cuttings, which was demonstrated on the example of selected indices (SCP, SBO) and SCP/SBO model analysis. Increase in regression changes in carabid assemblages with the increase of the pressure from water−tourists was shown. It was demonstrated on the basis of reduction of the frequency of autumn species, increase of the number of small zoophages and replacement of the higrophilous species with mezophilous ones. Higher pressure resulted in higher standardised number of species as well. However, achieved results suggest that changes in the environment are not so heavy, they are important for forest economy.
Źródło:
Sylwan; 2008, 152, 08; 35-46
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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