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Wyszukujesz frazę "dead wood" wg kryterium: Temat


Wyświetlanie 1-3 z 3
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:
Wpływ rozpadu drzewostanów w wyniku gradacji kornika drukarza (Ips typographus) na zagrożenie pożarowe Puszczy Białowieskiej
Impact of forest stands dieback as a result of bark beetle (Ips typographus) outbreak on the fire risk in the Białowieża Forest
Autorzy:
Szczygieł, Ryszard
Kwiatkowski, Mirosław
Tyburski, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/18055683.pdf
Data publikacji:
2023
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
bezpieczeństwo
biomasa
las naturalny
materiał palny
martwe drewno
pożar lasu
safety
biomass
natural forest
flammable material
dead wood
forest fire
Opis:
Białowieża Forest, due to its unique character, requires a specific approach to the management of this area, including fire risk assessment. This is particularly important with regard to the recent bark beetle (Ips typographus) outbreak, which has contributed to the local dieback of Norway spruce stands on a total area of approx. 11.5 thousand hectares during the 2012-2022 period. The article presents the most important results of the implemented projects related to the fire protection of the Białowieża Forest. The analysis of potential fire hazard should take into account both dead wood and the impact of tree stand dieback, which resulted in the emergence of grasses as the dominant plant cover that poses a high risk not only for the possibility of fire, but also for its rapid spread. During 2012-2022 fuelload of the studied areas increased almost sevenfold compared to 2011 (15.8 t/ha), reaching an average maximum value of 108.9 t/ha in 2017. However, the progressive decomposition of dead wood and the decreasing amount of fine combustible material (fire-active biomass) caused that the fire risk in turn gradually decreased. After a period of about 10 years after the stand dieback, the fire risk caused by the dead wood left behind has reached a minimum level and the possibility of initiating the burning of such material was significantly reduced. Despite the decreasing fire hazard from dead wood, the fire risk will remain high for many years due to the presence of grass cover, especially during periods when it dries out. The analysis of the fire risk in the Białowieża Forest caused by the spruce bark beetle outbreak formed the basis for the development of the "Fire Protection and Forest Fire Fighting Plan for the Polish Part of the Białowieża Forest Transboundary World Heritage Site", which includes: fire risk assessment, fire detection, communication and alarm system, fire roads, water stores, equipment for fire fighting and rules for conducting rescue and fire-fighting operations.
Źródło:
Leśne Prace Badawcze; 2023, 83; 1-15
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Saproksyliczne skoczogonki (Collembola) Wigierskiego Parku Narodowego
Saproxylic springtails (Collembola) of the Wigry National Park
Autorzy:
Skarzyński, D.
Piwnik, A.
Krzysztofiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/1294736.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
parki narodowe
Wigierski Park Narodowy
owady saproksyliczne
grupy ekologiczne
skoczogonki
Collembola
wykaz gatunkow
dead wood
saproxylobiontic
saproxylophilous species
forest types
NE Poland
Opis:
Faunistic and ecological studies on saproxylic Collembola species were carried out in the Wigry National Park (NE Poland). Nine sites representing Tilio-Carpinetum, Serratulo-Pinetum and Peucedano-Pinetum habitats each including three different levels of disturbance were visited twice in 2015. Samples from fallen logs in different stages of decay, neighboring litter and soil as well as arboreal epiphytes were taken on each visit. The Collembola specimens were then extracted using Tullgren funnels resulting in a total of 73 838 specimens from 270 samples. Specimen identification revealed the occurrence of 63 species, including 5 saproxylobiontic, 7 saproxylophilous, 4 xerophilous species living in epiphytic mosses and lichens as well as 47 hemiedaphic or euedaphic species. This composition of saproxylic fauna seems to be typical for the region with the most diverse assemblages being found in Tilio-Carpinetum habitats, while Serratulo-Pinetum and Peucedano-Pinetum are clearly less diverse. Additionally, a slight decrease in the number of Collembola species with increasing forest disturbance was observed. Furthermore, an increase in the number of Collembola species with the degree of dead wood decomposition was also found. This indicates that saproxylic springtail assemblages are sensitive to anthropogenic changes.
Źródło:
Leśne Prace Badawcze; 2016, 77, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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