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    Tytuł:
    Analiza możliwości implementacji certyfikacji w systemie użytkowania leśnych surowców i produktów niedrzewnych. I. Założenia metodyczne i przegląd literatury
    Analysis of the possibility of implementing certification system for utilisation of non-wood forest products. I. Methodological assumptions and literature review
    Autorzy:
    Staniszewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/973897.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    certyfikacja
    leśnictwo
    uboczne użytkowanie lasu
    surowce leśne
    leśne surowce niedrzewne
    non−wood forest products
    forest resources
    certification
    forest use regulation
    forest use principles
    Opis:
    The article presents an analysis of selected conditions of certification in forestry in relation to the non−wood forest products utilisation. They were the basis for presenting selected governmental and international organisations concerned with the development, implementation and monitoring of standards relating to the forest−timber industry and environmental issues. The main categories of certification schemes were identified and analysed: certification of forest management, social certification, organic certification and certification of product quality. The analysis of both global and regional problems related to certification of non−wood products, as well as a thorough analysis of the relevant regulations and legislation, demonstrated the need to treat certification as an important tool in the general concept of non−wood forest products utilisation.
    Źródło:
    Sylwan; 2011, 155, 04; 253-260
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ gospodarki leśnej na przydatność lasów podmiejskich do rekreacji
    Effect of forest management on recreational usefulness of suburban forests
    Autorzy:
    Dudek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/987136.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gospodarka lesna
    lasy podmiejskie
    uzytkowanie lasu
    uzytkowanie rekreacyjne
    przydatnosc do rekreacji
    forest recreation
    forest management
    ecosystem services
    forest use
    Opis:
    The article is related to recreational use of forests, a dynamically growing sector of forest exploita− tion complying with the European model of multifunctional forestry. The study examined the relation between selected forestry operations performed in forests and the level of their recre− ational usefulness (recreational potential), and separately between the type of forest−hold and the dominant function of forest versus its usefulness for recreation. The study was carried out in south−eastern Poland, in suburban forests of Rzeszów. Recreational potential was determined with the use of method commonly applied in Poland, based on assessment of several features of tree stands i.e. habitat moisture, age of tree stands, inclination of the terrain, stand density, presence of undergrowth and underbrush, soil cover, species composition of the stand. The rela− tionships were examined with chi−squared test and their strength was assessed with Cramér V index. Tree stands with recreational value account for nearly 72% of the relevant forest area. Mean recreational capacity of the forests amounted to 2.19 man−hour/ha/day. The results show statistically significant effect of forest management in recreational usefulness of tree stands. In the case of forestry operations and type of forest−hold, the relationship is weak, but moderate for forest function. The stands with the largest recreational usefulness where those in which lumber is acquired from small felling sites (92% of these were useful for recreation), or those located in protection forests and fulfilling water protection functions (not to be confused with protection of water intakes, i.e. special forests). Protection forests were found with twice as many recre− ationally useful stands (60%) than commercial forests (32%). Similarly, water−protecting forests were twice as useful for recreation (78%) as forests protecting urban areas (35%) and forests damaged by industry (37%). The main factors reducing recreational usefulness of forests include dense undergrowth and underbrush (40% of land cover). The study identifies the elements of commercial forestry resulting in greater recreational usefulness of forests; hence it is possible to designate tree stands, which can be additionally developed for tourism related purposes without a need to modify the existing principles of forest management. On the other hand, in forests accessible for leisure, foresters can enhance the increase in recreational potential of forests by conducting planned commercial operations.
    Źródło:
    Sylwan; 2017, 161, 07; 583-591
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metodyczne przesłanki strategii rozwoju zasobów leśnych w Polsce
    Methodological assumptions of the strategy of forest resource development in Poland
    Autorzy:
    Borecki, T.
    Stępień, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/994944.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    zasoby lesne
    rozwoj zrownowazony
    strategia rozwoju
    gospodarka lesna
    uzytkowanie lasu
    kierunki rozwoju
    priorytety
    forest resources
    development
    concept
    forest use
    level of harvest
    Opis:
    Paper presents the forest management planning assumptions of the forest resource development strategy in Poland till 2070 taking into account the need of maintaining the sustainable use of stands integrated with the possibility of improving the current state of forest resources.
    Źródło:
    Sylwan; 2012, 156, 12; 914-922
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kilka odniesień teoretycznych do formułowanych zasad użytkowania lasu
    Autorzy:
    Paschalis-Jakubowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023580.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gospodarka zrownowazona
    gospodarka lesna
    uzytkowanie lasu
    lesnictwo
    theory and principles of sustainable forest management
    sustainable use of forest resources
    Opis:
    The paper provides the results of the analysis of the selected concepts of solutions aimed at developing the theoretical foundations of sustainable use of forest resources. On the basis of an overview of recent achievements in this area the author proposes a novel system of developing the principles of sustainable use of forest resources assuming that the principles of sustainable management are fully observed.
    Źródło:
    Sylwan; 2004, 148, 05; 22-29
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelowanie wielkości użytkowania rębnego drzewostanów w zależności od przyjętych metod prognozowania rozwoju lasu
    Modelling of the size of allowable cutting based on adopted methods of forest development forecast
    Autorzy:
    Szyc, K.
    Borecki, T.
    Stępień, E.
    Kędziora, W.
    Konieczny, A.
    Orzechowski, M.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/979061.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    forestry use
    forest development
    modelling of usage regulation
    Opis:
    Many attempts have been made to develop a strategy for regulating forest use consistent with the multifunctional forest model. In this paper we present two proprietary methodologies of regulation of the allowable cutting size in a multifunctional forest in the 60−year time perspective. We assumed that all restrictions of nature protection and non−productive functions of the forest would still be in force. We based the first method on age class tables (TKW), which is faster but less exact in terms of spatial order of felling. The tree stand method (D−STAN) is based on stands spatial order and the cutting direction basis. In both cases, we based the temporal felling order on species rotation age. Comparing the results, we noticed that they present similar trends in the age structure of tree stands in younger age classes. The main discrepancies of the forecast concerns the share of forest stands in a complex structure: the TKW method gave approximately 12,4%, while the D−STAN one produced 5,1%. The latter approach shows that much smaller areas of stands are used for reconstruction. That marker is influenced by the spatial order of cutting used in the D−STAN model. In conclusion, we suggest to return to the big−area clear−cutting system on fresh coniferous habitats. Medium−area clear−cuttings should be brought back on the least fertile fresh mixed coniferous forests and possibly even fresh mixed deciduous forests.
    Źródło:
    Sylwan; 2020, 164, 04; 280-291
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geneza, cel i synteza wyników badań nad znaczeniem leśnictwa w rozwoju obszarów wiejskich
    Autorzy:
    Płotkowski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022294.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gospodarka zrownowazona
    obszary wiejskie
    rozwoj obszarow wiejskich
    gospodarka lesna
    lesnictwo
    land use
    sustainable forest management
    rural development
    forest products
    non−market forest values
    Opis:
    This paper deals with the author's research results on the current situation and future prospects concerning the value of forestry in rural development presented in various reports and papers including columns of Sylwan. Forestry forms a substantial part of the rural economy. Wood ad other forest products and their processing secure a number of jobs in rural areas increasing socio−economic stability and development. Apart from the economic aspects, forestry has a lot of non−market values. It is necessary to analyse potential economic and social benefits of forestry to rural areas and their development of both market and nonmarket values and to include those benefits in rural conceptions.
    Źródło:
    Sylwan; 2005, 149, 02; 60-72
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Definicja lasu w ujęciu krajowym i międzynarodowym oraz jej znaczenie dla wielkości i zmian powierzchni lasów w Polsce
    National and international definition of forest and its importance for the forest area in Poland
    Autorzy:
    Jabłoński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989804.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    tereny lesne
    powierzchnia lasow
    definicje
    Polska
    Organizacja Narodow Zjednoczonych
    Protokol z Kioto
    forest definition
    forest cover
    land use
    forest expansion
    afforestation
    kyoto protocol
    Opis:
    Sustainable forest management, the leading topic in forest and environmental policy since the 1990s, has required an appropriate tools for both clarification of general principles and measurement of its progress. Many of indicators developed for these purpose are based on forest area. However, definitions of forest are not compatible, especially on national and worldwide scale. Definition of forest applied by FAO refers to crown cover and land use, while definition adopted for reporting under Kyoto Protocol refers only to the occurrence of trees. Polish Act on Forest applies the destination of land use as a determinant of forest. Paper analyses the process of forest area assessment in Poland for the purpose of national as well as FAO and UNFCCC reporting. Natural expansion of trees on abandoned agriculture land, still classified as the agriculture areas in cadastral system, was recognized as the biggest challenge of forest area assessment in Poland. Although natural succession is described by many authors, the total area subjected to this process is unknown. According to the FAO and Kyoto Protocol rules such areas should be reported as forests. As a consequence, forest area in Poland could be at least a few hundred thousand hectares higher than reported in the last assessments basing only on cadastral system. The proper classification of forests not recorded in the cadastral system would also be important challenge, otherwise between forest area on country and international level will be a huge discrepancy. But, there are some areas classified as a forest in Poland, which probably should not be included within FAO and Kyoto reporting. However, the most important topic concerns the possibility of identification of afforested areas, submitted under article 3.3. of Kyoto Protocol, basing on forest area changes between 1989 and 2012. One should recognise if afforested area is not overestimated using such approach, as a result of modification of forest definition in Poland in 1991. Additional question concerns the forest lands included into cadastral system after 1990, but afforested or resulting from natural succession occurring before that time, which currently are reported as afforestation under article 3.3. of Kyoto Protocol.
    Źródło:
    Sylwan; 2015, 159, 06; 469-482
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Las i gospodarka leśna w systemie planowania i zagospodarowania przestrzennego w Polsce
    Forest and forest economy in spatial land-use planning and management in Poland
    Autorzy:
    Przybylska, K.
    Zięba, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009657.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gospodarka lesna
    Polska
    lasy
    planowanie przestrzenne
    lesnictwo
    gospodarka przestrzenna
    spatial land−use planning
    sustainable development
    forest valuation
    functional forest area
    Opis:
    The aim of the paper is to indicate the possibilities of synchronizing forest resource management planning with spatial land−use planning at different levels: national, provincial, county and local. In the paper references are made to hierarchical spatial land−use planning to be enriched with a systematic forest planning.
    Źródło:
    Sylwan; 2009, 153, 12; 814-824
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ fragmentacji kompleksów leśnych na dokładność określania powierzchni lasów na przykładzie województwa łódzkiego
    Impact of forest complexes fragmentation on accuracy of forest area evaluation on an example of Lodz voivodeship
    Autorzy:
    Budniak, P.
    Jabłonski, M.
    Zięba, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/979213.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    fragmentacja lasow
    powierzchnia lasów
    kompleksy leśne
    leśnictwo
    woj.łódzkie
    forest complex
    fragmentation
    land use
    Opis:
    Every year official data on forest area in Poland is published by the Statistics Poland. Some of this data is based on land use information contained in the Land and Property Registry (LPR). The aim of this study was to examine compliance between forest areas obtained from official land use maps and from aerial photos. Another purpose was to investigate the impact of forest complexes fragmentation on the accuracy of forests area evaluation, using land use data. The Łódź voivodeship was selected as the study area and 280 sample plots (1 km2) were established in systematic 8×8 km grid on aerial photos. Forest areas were manually inventoried using GIS software and compared with LPR maps. In the next step inventoried forests were combined into complexes using spatial analysis. The results from this study demonstrate that 3,4% of the Łódź voivodeship is covered by forest vegetation on lands not recorded as a forest in the LPR. Therefore real value of forest area is possibly higher than those based upon data published by Statistics Poland. Additionally, the part of lands with forest vegetation not recorded as a forest in LPR in total forest area has a statistical relationship with forest complex fragmentation. Much of inventoried forest complexes (41%) officially are not considered as such because of different land use record in LPR. However, our research shows that most of them (given area not the number of objects) is located in forest complexes partly recorded in LPR with correct land use record.
    Źródło:
    Sylwan; 2020, 164, 02; 142-150
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Socjalne aspekty modelu wielofunkcyjnej gospodarki leśnej
    Social aspects of sustainable forest management
    Autorzy:
    Płotkowski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/973294.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    gospodarka wielofunkcyjna
    leśnictwo
    gospodarka leśna
    gospodarka zrównoważona
    sustainable forest management
    land use
    rural and regional development
    Opis:
    The subject of the paper concerns: a) analyse of the interrelations between socio−economic aspects within forestry as well as with other relevant sectors such as agriculture; b) identify relevant groups, the nature and extent of their involvement in sustainable forest management (SFM), and c) review the question of participation and conflict resolution.
    Źródło:
    Sylwan; 2003, 147, 04; 10-19
    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:
    Ocena potencjału rekreacyjnego lasów w terenie o zróżnicowanej orografii na przykładzie Czarnorzecko-Strzyżowskiego Parku Krajobrazowego
    Assessment of recreational potential of forests in areas with diverse orography: Czarnorzecko-Strzyzowski Landscape Park case study
    Autorzy:
    Dudek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/991689.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    parki krajobrazowe
    Czarnorzecko-Strzyzowski Park Krajobrazowy
    lasy
    uzytkowanie rekreacyjne
    potencjal rekreacyjny
    forest recreation
    tourism
    recreational use of forests
    Opis:
    This article presents results of the pilot research conducted in the Carpathian Foothills. The research concerned the forest recreation in upland and mountain forests. For the purpose of the implemented research, method of recreational valuation of forests, developed at the Forest Research Institute was modified adopting it to areas of diverse relief.
    Źródło:
    Sylwan; 2013, 157, 10; 775-779
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena fragmentacji lasów Pomorza Zachodniego pomiędzy XV a XX wiekiem
    Evaluation of the forest cover fragmentation in Western Pomerania between the 15th and 20th century
    Autorzy:
    Pieńkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989791.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    fragmentacja lasu
    spadek lesistosci
    Pomorze Zachodnie
    wiek XV-XX
    forest fragmentation
    land use changes
    landscape metrics
    Opis:
    The paper analyzes the changes of forest fragmentation in the Western Pomerania region (NW Poland). The analysis was carried out basing on maps from 16th and 18th century as well as 1930s, when the forest cover in the studied area was the lowest. The historical area of forests was assessed on the basis on Hartnack utilization maps. The analysis of numerical maps was carried out in the GUIDOS program, which enables to evaluate the fragmentation of the forests through Morphological Spatial Pattern Analysis (MSPA) that describes the geometry of patches and their interconnectivity. The program calculated the forest areas classified for the seven categories according to their functions in the landscape (MSPA classes). In the 15th century the forests coverage was around 52.5%. There was a significant loss of forest area between the 16th and 18th century, and in the 18th century they occupied 24.7% of the researched area. Because of the economic changes in the country that took place after the World War II, the forest area in Pomerania increased to 33.7%. It was found that changes in the forest area in the examined period resulted in a decrease in the area classified as forest interior (CORE) and an increase in the boundary area (EDGE). Taking into account the equidistant of 1 km², the area occupied by the core patches dropped in the analysed period from 59.9% to 35.6%. At the same time the spatial isolation of many patches increased, which was reflected in an increase in the area classified as ‘islands' (ISLET). Their share in relation to the entire forest area increased from 4.4% to 23.6%. This could be particularly seen in the area of Pyrzycko−Stargardzka Plain and Choszczno Lakeland, where in the 1930s the so−called forest islands constituted the entire forest area of these mesoregions. The MSPA analysis enabled to specify forest patches classes, which can be useful for landscape characterization, including the patch and corridor model. The fragmentation of forests can be objectively assessed using GUIDOS and it can make the output results obtained in GIS programs complete.
    Źródło:
    Sylwan; 2015, 159, 07; 610-616
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wielkoobszarowa inwentaryzacja stanu lasu źródłem informacji o powierzchni lasów w Polsce
    Forest area in Poland based on national forest inventory
    Autorzy:
    Jabłoński, M.
    Mionskowski, M.
    Budniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/985910.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Polska
    lasy
    lesistosc
    powierzchnia lasow
    zrodla informacji
    inwentaryzacja lasu
    inwentaryzacja wielkopowierzchniowa
    forest definition
    land use
    land cover
    nfi
    cluster sampling
    Opis:
    Forest area in Poland is annually evaluated as a part of public statistics research. However, this information is based on land use resulting from Land and Property Register (LPR). Delays in the reclassification of afforested land, as well as the natural expansion of trees on abandoned agricultural lands, observed over the last decades, caused that information from LPR becomes unreliable. In many countries forest area is assessed within the National Forest Inventories (NFIs) based upon systematic grid of sample plots. NFI in Poland has been performed since 2005, in 4×4 kilometre grid with clusters consisting of five plots. Until 2014 measurements were made only on these sample plots which were located in forest according to LPR records. Within the 3rd NFI cycle (2015−2019) the areas fulfilling the criteria of forest definition, but located on non−forest land referring to LPR, has become the object of study. The aim of this work is to present statistical approach for evaluation of forest area using NFI cluster sampling data. Additionally, results from two year measurements (2015−2016) were analysed and compared with LPR data. Attributes of NFI plots allow to apply national forest criteria as well as the land use and land cover thresholds recommended by Food and Agriculture Organization of the United Nations or Kyoto Protocol. Our research shows that forest cover in Poland is in the range of 32.8−33.0%, depending on forest definition used, and is almost 3% higher than official LPR data (30.1%). The standard error of forest cover, based on two years NFI data is 0.44. Thus, with 95% probability the true value of this parameter lies between 31.9 and 33.7%, while country thresholds of forest definition are used. Additionally it was assessed that using the entire NFI cycle data the standard error of forest cover should be lower i.e. less than 0.3. The National Forest Inventory seems to be an appropriate tool for monitoring forest area in Poland.
    Źródło:
    Sylwan; 2018, 162, 05; 365-372
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aktywność żerowiskowa nietoperzy w różnych fazach rozwojowych drzewostanów sosny zwyczajnej
    Foraging activity of bats in Scots pine stands in different growth stages
    Autorzy:
    Węgiel, A.
    Grzywiński, W.
    Ciechanowski, M.
    Jaros, R.
    Kmiecik, A.
    Kmiecik, P.
    Wegiel, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/989345.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    sosna zwyczajna
    Pinus sylvestris
    fazy rozwojowe
    zreby
    uprawy sosnowe
    drzewostany sredniowiekowe
    drzewostany dojrzale
    nietoperze
    Chiroptera
    roznorodnosc gatunkowa
    aktywnosc zerowania
    chiroptera
    foraging activity
    habitat use
    forest management
    pinus sylvestris
    western poland
    Opis:
    Scots pine (Pinus sylvestris L.) is economically the most important tree species in Polish forestry. Congeneric pine stands have a quite low level of biodiversity, and logging with clear sites may even cause their further decline. It is very important to discover the influence of clear−cuttings in managed pine stands on different groups of organisms. One of them are bats which play an important role in forest biotopes as a regulator of insect pests. The aim of this paper is to compare the foraging activity of bats in pine stands of different stages of growth. The study was carried out in three complexes of pine forests in western Poland: Drawska Forest, Notecka Forest and Dolnośląskie Forests. Four types of growth phases were studied: clear−cut sites (Z), young plantations in the age 2−5 years (U), 41−60−years−old stands (III) and mature stands in the age over 80 years (V). The study of the foraging bat activity was conducted with broadband ultrasound detectors Pettersson D−1000X within 3 hours after sunset in summer periods of 2013 and 2014. The recordings were analyzed with BatSound software. Total 19 180 bat passes were recorded on all 120 sampling plots. 11 bat species: Nyctalus noctula, Pipistrellus pipistrellus, Eptesicus serotinus, P. nathusii, Myotis myotis, P. pygmaeus, M. nattereri, Barbastella barbastellus, N. leisleri, E. nilssonii and Vespertilio murinus and four groups of species: NEV (Nyctalus, Eptesicus, Vespertilio), MSP (Myotis), PSP (Pipistrellus), and PLE (Plecotus) were recognized (tab. 1). The dominant was common noctule N. noctula (71.5%). The highest foraging activity of bats was recorded in open areas: clear sites and plantations (fig. 1), next in mature stands and middle−aged stands. The obtained results suggest that bats can adapt to a mosaic of habitats created by clear−cutting harvesting system in managed pine forests.
    Źródło:
    Sylwan; 2016, 160, 09; 767-776
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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