Informacja

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

Wyszukujesz frazę "forest" wg kryterium: Temat


Tytuł:
Effectiveness of forest fire security systems in Poland
Autorzy:
Grajewski, S. M.
Tematy:
forest fire
forest fire risk
forest fire protection
forest fire security
State Forests National Forest Holding
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Powiązania:
https://bibliotekanauki.pl/articles/101173.pdf  Link otwiera się w nowym oknie
Opis:
It has been estimated that over 80% of forest areas in Poland is threatened with fire. Due to the number of fires and burned area, Poland is counted to the group of European countries where fires break out the most frequently. On average, each year and mostly because of human activity, almost 8.5 thousand fires break out resulting in over 7 thousand ha of burned forest area. Many scientists forecast that the climate warming, decline in precipitation amount and prolonging rainless periods will enhance fire risk in forests, which will translate itself not only into an increase in the number of fires, but also will favour their intensive spreading. The aim of presented paper is estimating the operational efficiency of the fire protection system in Polish forests and the effectiveness of fire extinguishing actions in forests, but also recognition of the effect of the forest area management type on fire statistics. Following data series were investigated: of the number of fires, the burned forest area and average fire area for the years 1990-2016 for the forests under the management of the State Forests National Forest Holding (State Forests NFH) and other managements. Determined trends were analysed by means of Mann-Kendall non-parametric test. A mean area of forest fire was assumed as the main measure of forest fire protection system effectiveness. The area was compared with the other European countries, Canada and the USA. Despite a lack of a tendency for decreasing number of fires in Poland, which is noted in Europe, taking into account a low value and a statistically significant downward trend for average fire area, forest protection and the effectiveness of extinguishing actions in Polish forests should be regarded as very good. The exception are forests remaining beyond the management of the State Forests NFH, where the upward trend for the number of forest fires is alarming.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bird communities of old pine coniferous forests and the characteristics of their microhabitats in pine forests at least 160 years old
Autorzy:
Pepłowska-Marczak, Danuta
Tematy:
Kampinos National Park
Kampinoska Forest
forest birds
hole-nesters
mature forest
mature forest specialists
old forest
umbrella species
Pokaż więcej
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:
https://bibliotekanauki.pl/articles/1046521.pdf  Link otwiera się w nowym oknie
Opis:
This paper presents the results of a study of bird populations connected with the oldest forest stands of pine coniferous forests in Kampinoska Forest, where the pine trees are minimum 160 years old. It presents the basic results concerning the distribution, selectiveness and habitat preferences of hole-nesters and the birds connected with old forests in connection with habitat characteristics. The studied areas were dominated by hole-nesters, and a significant share was of birds connected with gaps left after broken trees. A large group was made up by birds which collect invertebrates among trees and then the species which feed on trunks and branches. Large dimensions of pine trees and numerous cracks in bark, cracks in trunks and hollows under windfallen tress served as microhabitats for particular bird species. The index of species diversity and number of pairs were similar in every area, probably due to dozens of years of forest protection, thanks to which similar quantity and quality parameters developed in the areas.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The volume of wood forest resources in the European Union countries
Autorzy:
Turczak, Anna
Wydawca:
Aleksandras Stulginskis University, Lithuania
Opis:
The contributions of forests to the well-being of humankind are extraordinarily vast and far-reaching. They are an important element in mitigating climate change. The aim of the paper is to determine the influence of particular factors on the diversity of the European Union countries in terms of the amount of wood forest resources compared with the country size. Two factors affecting the variable have been analysed in the paper: 1) the growing stock per 1 hectare of forest area and 2) the quotient of the forest area and the land area without inland water. Those two independent variables are directly proportional to the dependent variable, thus the higher the growing stock density and the higher the forest cover, the bigger the amount of wood forest resources of the analysed country. The causal analysis allowed to answer the question how the two factors affect the variable considered in the twenty eight countries, namely, what the direction and the strength of their influence are. The logarithmic method was used to carry out the causal analysis. The average results obtained for the entire European Union were compared with those received for each country separately and, on this basis, final conclusions were drawn. Data for 2005, 2010 and 2015 have been used for all needed calculations.
Dostawca treści:
Repozytorium Centrum Otwartej Nauki
Książka
Tytuł:
Zasady zatrudniania w nadleśnictwie pracowników Służby Leśnej
Principles of employing employees of the Forest Service at the forestry commission
Autorzy:
Żywolewska, Katarzyna
Tematy:
employment
forest district
Forest Service
Pokaż więcej
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Temida 2
Powiązania:
https://bibliotekanauki.pl/articles/531029.pdf  Link otwiera się w nowym oknie
Opis:
The article is regarding principles of employing employees of the Forest Service at the Forestry Commission. The article explained the definition of the national forest household, the forest district and the forest service and comprehending the employer which the state treasury was discussed (as an organizational unit), but activities of the work in law, according to Art. 35a forest district manager is making the sec. of 1 act on forests. Deliberation also concerned the criteria for the employment that candidates have to fulfill (Polish citizenship, capacity to act in law, using the height of public laws, suitable qualifications, clean disciplinary record, adequate medical condition, employment in whole working hours). The legal grounds on which employees of the forest service are being employed (employment contract and vocation) were characterized. It was pointed out that in the upcoming changes of the legal acts concerning forests employment will be exclusively based on employment contract.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Description and characteristic of bird species inhabiting dry coniferous forests exceeding 150 years of age in Kampinos National Park
Autorzy:
Pepłowska-Marczak, Danuta
Tematy:
Kampinos National Park
forest birds
hole-nesters
mature forest
mature forest specialists
old forest
umbrella species
Pokaż więcej
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:
https://bibliotekanauki.pl/articles/1157315.pdf  Link otwiera się w nowym oknie
Opis:
This paper presents the results of the ornithological research performed in the oldest dry coniferous forests of Kampinos National Park (central Poland). The field study took place on three 25-ha-sites overgrown with Scots pine Pinus sylvestris over 150 years old. The species composition of the dominant group was found to differ from that of other forests. Hole-nesters constituted the most important part of the population of birds together with old and mature forest specialists and residents. Hole-nesters were numerously represented (50% of all noted pairs). Old and mature forest specialists constituted 40% of all pairs. Seven species connected to natural forest clearings were also found to be of significant importance. The presence of such ecological groups is proof of the biological balance and diversity of the researched forests.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Site index research: a literature review
Badania nad bonitacją drzewostanów w świetle literatury
Autorzy:
Tomusiak, Robert
Kędziora, Wojciech
Borecki, Tomasz
Wydawca:
Instytut Badawczy Lesnictwa (Forest Research Institute), Sekocin Stary, Poland
Cytata wydawnicza:
Kędziora, W., Tomusiak, R., & Borecki, T. (2020). Site index research: a literature review, Forest Research Papers, 81(2), 91-98. doi: https://doi.org/10.2478/frp-2020-0010
Opis:
The purpose of this paper was to review literature covering the topic of site index with particular emphasis on Scots pine, the most important forest-forming species in Poland. We discuss the history of the site index, research on various tree species, statistical modelling methods, the spatial application of site index and age impact assessment. The history of research on the site index of forest species is long and dates back to the 18th century. Many researchers thought that determining the quality of the habitat is very important from the point of view of rational forest management. The site index, as a measure of the potential of the habitat on which the forest grows, is one of the most important characteristics of forest stands. The site index depends on the selected model, but is most often expressed as the average or top height of trees of a given species at a certain age. In our review, we point out several insufficiencies of studies on the site index, external influences and the connection of the site index with spatial conditions. Furthermore, research conducted so far has not explicitly confirmed that there is a relationship between the site index of pine stands and their geographical location in Poland. More research on the site index, especially in regard with climate change, is needed.
Dostawca treści:
Repozytorium Centrum Otwartej Nauki
Artykuł
Tytuł:
Zasady kształtowania lasów ochronnych miast
Principles of management of urban protection forests
Autorzy:
Wołkowycki, Dan
Tematy:
forest management
protection forest
urban forestry
Pokaż więcej
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:
https://bibliotekanauki.pl/chapters/32083889.pdf  Link otwiera się w nowym oknie
Opis:
The article discusses the project of good practices for the manager of the urban protection forest, i.e. a model and universal set of protection and management guidelines necessary for the proper shaping of forests in a city. The set of guidelines proposed as the Chart of the Urban Protection Forests includes: shaping multigenerational tree stands; a gradual and spread over time succession of tree generations; maintaining old-growth forests and biocenotic trees in the largest possible number, on the largest available area; the continuous presence of older and middle-aged trees in every part of the forest; resignation from clear-cutting in renewing of tree-stands; promoting and making full use of natural regeneration of tree-stands; passive protection of waterside and wetland forests; active protection of natural diversity as needed; shaping and reconstruction of tree-stands, especially in the habitats of pine and mixed forests; using sanitary pruning when necessary to maintain the durability of tree-stands; complete abandonment of plowing in forest regeneration; zoning; designation of restricted animal sanctuaries; participation and co-responsibility of the society. The introduction of the proposals contained in the Chart of the Urban Protection Forests, at least in part of the protection forests in the cities, could certainly contribute to increasing social acceptance for forest management and avoiding unnecessary conflicts around urban and suburban forests.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the coniferous forest - grassland edge on ground vegetation in the mixed European forest zone, Lithuania
Autorzy:
Marozas, V.
Tematy:
coniferous forest
grassland
forest edge
ground vegetation
mixed forest
species richness
forest fragmentation
Europe
Lithuania
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Powiązania:
https://bibliotekanauki.pl/articles/41375.pdf  Link otwiera się w nowym oknie
Opis:
The objective of this study was to estimate the edge effect on the species richness in agriculturally maintained forest-grassland boundaries of coniferous forest and to determine how species respond to a forest edge. We hypothesised that species number, cover of herbs and mosses is higher in the edge, and species penetrates from nearby grasslands into forest interior. The study was conducted in the Southwestern Lithuania. The edge effect on overall herbaceous species composition of coniferous forests was evaluated by Canonical Correspondence Analysis. The species richness of herbs and mosses in the coniferous forest was highest in the forest edge and declined towards interior. The highest decrease in the number of species occurred within 0 to 5 m to the edge. The highest cover of herbs and mosses was in the forest edge and decreased towards the forest interior. CCA biplot showed a good correlation of overall species composition and the distance to the forest edge. Distribution of species along edge to interior gradient depended on the species response to different ecological factors. Ellenberg value of light was higher in the edge. Ellenberg value of nitrogen was higher in the forest interior.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
European beaver (Castor fiber L., 1758) population in the Augustowska Primeval Forest
Populacja bobrów (Castor fiber L., 1758) w Puszczy Augustowskiej
Autorzy:
Aulak, W.
Tematy:
European beaver
beaver
Castor fiber
animal population
Augustowska Forest zob.Augustow Forest
Augustow Forest
Augustow Primeval Forest zob.Augustow Forest
habitat use
Pokaż więcej
Wydawca:
Instytut Badawczy Leśnictwa
Powiązania:
https://bibliotekanauki.pl/articles/38463.pdf  Link otwiera się w nowym oknie
Opis:
The study on the distribution and abundance of beaver families in the Augustowska Primeval Forest was conducted in the years 2000 -2003. It embraced all seven Forest Inspectorates administering the Forest. The study consisted in the penetration of banks along watercourses, lakes and drainage ditches. Lodges, bank dens, dams and the length of the banks colonized by beaver families were plotted on maps. Habitat types contained within the territories of individual beaver families were established on the basis of the maps obtained from Forest Inspectorates. The percentage of bank utilisation by beavers in various types of water bodies was determined. The number of beaver lodges and bank dens, as well as their number per family were established. Also, habitat preferences of beavers in individual water bodies were verified. The presented study has the form of a report which can be used for further monitoring of beaver populations in the Augustowska Primeval Forest.
W latach 2000–2003 prowadzono badania nad populacją bobrów w Puszczy Augustowskiej. Ogółem w 7 nadleśnictwach stwierdzono 290 rodzin (Tab. 1). Analizowano 5 typów akwenów: rzeka Czarna Hańcza, Kanał Augustowski, inne rzeki, jeziora i rowy melioracyjne. Największe zagęszczenie bobrów w Puszczy stwierdzono przy ciekach i jeziorach. Z ogólnej liczby 290 rodzin ujawniono 35 rodzin na rowach melioracyjnych. W każdym typie akwenów analizą objęto: położenie żeremi, nor, długość areałów rodzin i wybiorczość siedlisk. Określono w % wykorzystanie brzegów akwenów (Tab. 2) oraz długość brzegu zajętego przez jedną rodzinę (Tab. 3), wybiorczość siedlisk przez bobry (Tab. 4, 5, 6). Ponadto określono liczbę żeremi, nor i gniazd łącznie w rożnych akwenach w poszczególnych nadleśnictwach (Tab. 7), a także ich liczbę przypadającą na jedną rodzinę (Tab. 8). Dane dotyczące rodzin na rowach melioracyjnych przedstawiono w tabelach 9– 11.
Dostawca treści:
Biblioteka Nauki
Artykuł

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