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Wyszukujesz frazę "dead wood" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Zasoby martwego drewna w lasach miejskich Warszawy
Resources of dead wood in the municipal forests in Warsaw
Autorzy:
Skwarek, K.
Bijak, S.
Powiązania:
https://bibliotekanauki.pl/articles/1311691.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Warszawa
lasy miejskie
stan sanitarny
drewno martwe
zasoby
dead wood
sanitary condition
urban forests
Opis:
Dead wood plays an important role for the biodiversity of forest ecosystems and influences their proper development. This study assessed the amount of coarse woody debris in municipal forests in Warsaw (central Poland). Based on the forest site type, dominant tree species and age class, we stratified all complexes of the Warsaw urban forests in order to allocate 55 sample plots. For these plots, we determined the volume of dead wood including standing dead trees, coarse woody debris and broken branches as well as uprooted trees. We calculated the amount of dead wood in the distinguished site-species-age layers and for individual complexes. The volume of dead matter in municipal forests in Warsaw amounted to 38 761 m3, i.e. 13.7 m3/ha. The obtained results correspond to the current regulations concerning the amount of dead organic matter to be left in forests. Only in the Las Bielański complex (northern Warsaw) volume of dead wood is comparable to the level observed in Polish national parks or nature reserves, which is still far lower than the values found for natural forests. In general, municipal forests in Warsaw stand out positively in terms of dead wood quantity and a high degree of variation in the forms and dimensions of dead wood.
Źródło:
Leśne Prace Badawcze; 2015, 76, 4; 322-330
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie martwego drewna w funkcjonowaniu populacji małych ssaków
Importance of coarse woody debris in the functioning of small mammals populations
Autorzy:
Jancewicz, E.
Kielan, E.
Powiązania:
https://bibliotekanauki.pl/articles/989215.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
ekosystemy lesne
lasy gospodarcze
drewno martwe
drobne ssaki
ryjowkowate
Soricidae
gryzonie
Rodentia
liczebnosc populacji
zageszczenie populacji
biodiversity
dead wood
rodents
shrews
woody debris
Opis:
Coarse woody debris constitutes an important and often indispensable habitat component for a huge number of vertebrates dwelling in temperate forests. The paper collates the results of research on the impact of coarse woody debris on the functioning of the Rodentia and Soricomorpha populations. In reference to this groups of vertebrates, the subject has been well−documented in the North America. Nevertheless, with regard to small European mammals the issue has not yet been fully recognized. The paper constitutes a review of the available literature on the matter. The cited research revealed that coarse woody debris, in its different decomposition stages, increases the heterogeneity of a habitat. Creating unique micro−habitats for small mammals of high environmental demands, it offers refuge, reproduction site and rich source of nourishment. The abundance of coarse woody debris may have an indirect impact on a population quantity, density and functioning, including area exploitation. The authors stress the fact that in the case of small mammals, associations between coarse woody debris and population features are not universal for all species, since they tend to differ in ecological characteristics. An analysis of the available literature on the matter reveals that the current knowledge of the associations between small mammals and coarse woody debris needs to be broadened and improved. It concerns, in particular, the areas where this type of research has not yet been conducted, including European and Polish forests.
Źródło:
Sylwan; 2017, 161, 06; 519-528
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niewidoczny świat mikrostawonogów (Acari, Collembola) w martwym drewnie świerkowym w Babiogórskim Parku Narodowym
The unseen world of microarthropods [Acari, Collembola] of spruce dead wood in the Babia Gora National Park
Autorzy:
Skubała, P.
Maślak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1012278.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
fauna
Babiogorski Park Narodowy
lesnictwo
parki narodowe
Collembola
stawonogi
Oribatida
skoczogonki
Acari
bogactwo gatunkowe
drewno swierkowe
drewno martwe
roztocze
acari
collembola
downed logs
dead wood
spruce
Opis:
The article presents results of the research on microarthropods (Acari and Collembola) inhabiting fallen spruce trees. The research was conducted in the spruce forest Plagiothecio−Piceetum tatricum typicum in the Babia Góra National Park, Carpathian Mountains. Five downed spruce logs in different stage of decay and neighbouring soil were sampled seasonally. Over 91 thousands specimens of mites and springtails were collected in 140 samples. Changes in population densities of different groups of microarthropod with the age of the dead wood was analysed and compared with densities in forest litter and soil. The total number of microarthopods inhabiting downed spruce logs on the area of hectare in the studied forest was estimated.
Źródło:
Sylwan; 2009, 153, 05; 346-353
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pory roku a zbiorowisko grzybów zasiedlających pniaki czeremchy amerykańskiej
Seasonal changes in fungi colonies inhabiting black cherry stumps
Autorzy:
Baranowska, M.
Korzeniewicz, R.
Kartawik, N.
Behnke-Borowczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/979585.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
gatunki inwazyjne
czeremcha amerykanska
Prunus serotina
fitopatologia
pniaki czeremchy
grzyby zasiedlajace drewno
grzyby mikroskopowe
identyfikacja
system Illumina
pory roku
illumina system
invasive species
dead wood
saprotrophs
wood−decay fungus
Opis:
Black cherry is an important invasive species in forest ecosystems in Poland. It developed mainly in Scots pine stands. The aim of the study was to identify microscopic fungi colonies inhabiting black cherry stumps. In the spring of 2017, wood samples were collected from stumps created after cutting in each subsequent month of 2016 in the Podanin Forest District (19°28'00'E, 52°04'00'N). Stumps up to 5 cm and more than 5 cm in diameter were selected for the study. In total, 72 discs from the first stage of the decomposition of wood were collected. The discs were drilled to obtain fine sawdust for further analysis. The trials were divided into four periods. DNA isolation was performed using the Plant Genomic DNA purification kit (ThermoScientific). The ITS1/2 rDNA region was used for species identification. The analysis was carried out using specific primers. The obtained product was purified and sequenced using the Illumina SBS technology. The resulting sequence was compared using the BLAST algorithm with reference sequences from the NCBI database. The communities of fungi inhabiting the black cherry stumps differed from each other. The highest number of taxa was identified in samples from stumps over 5 cm sheared in autumn and winter, while the lowest in stumps up to 5 cm sheared in spring and winter. Fungi belonging to the Ascomycota and Basidiomycota, Blastocladiomycota, Glomeromycota, Zygomycota and non−cultivable fungi and organisms belonging to other kingdoms were identified. Saprophytes from Menispora sp. dominated on the analysed stumps. The collection of fungi of larger stumps was more diverse and more numerous than on stumps with a smaller diameter. A greater diversity of taxa was distinguished by the stumps of tree fallen in the growing season. The majority of the analyzed samples were dominated by Ascomycota. Basidiomycota clusters dominated in the winter. The predominant share of saprotrophs shows the distribution of stumps. The most desirable effect of the research would be the indication of naturally occurring saprotroph, whose operation would reduce the black cherry’s yield strength. The applied method of sequencing based on the Illumina System was effective to determine the composition of the fungal population.
Źródło:
Sylwan; 2019, 163, 10; 872-880
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zbiorowiska grzybów mikroskopijnych zasiedlających martwe drewno świerkowe w Tatrzańskim Parku Narodowym
Composition of microscopic fungi associated with the spruce dead wood in the Tatra National Park
Autorzy:
Pusz, W.
Zwijacz-Kozica, T.
Powiązania:
https://bibliotekanauki.pl/articles/987204.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Tatrzanski Park Narodowy
obszary ochrony scislej
obszary uzytkowane gospodarczo
drewno sosnowe
drewno martwe
zasiedlenie
grzyby mikroskopowe
sklad gatunkowy
stopien rozkladu drewna
dead wood
fungi
norway spruce
tatra national park
Opis:
The aim of this research was to determine the composition of microscopic fungi colonizing Norway spruce dead wood depending on the degree of decomposition of wood and the location in the Tatra National Park (TPN; southern Poland). The work included lying and standing dead wood of Norway spruce as well as tree stumps. The sampling plots were located in the Białka Valley (eastern part of the TPN) where the forests are unmanaged and area is mostly under strict pro− tection, and in the western part of the Park, in the Chochołowska Valley, where the majority of forests is privately owned and managed (landscape protection). Samples were collected three times in the growing season, in spring, summer and autumn 2016. The sampling plots were located in the forests covered by different forms of protection: strict, active and landscape. The dominant microscopic fungi inhabiting analysed Norway spruce dead wood in selected regions of the Tatras are fungi belonging to Trichoderma genus: T. harzianum: T. polysporum, and T. hamatum. A much greater diversity of fungi species isolated from the dead wood was found for the Białka Valley, subjected to strict and active protection, than Chochołowska Valley, where forests are subject of the economic utilisation. More species and colonies were obtained from lying and older dead wood than from the stumps in the higher classes of distribution.
Źródło:
Sylwan; 2017, 161, 04; 312-319
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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