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Wyświetlanie 1-12 z 12
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:
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:
Wykorzystanie bezzałogowych statków powietrznych w gospodarce leśnej
Use of unmanned aircraft in forest economy
Autorzy:
Kmiecik, S.
Majewski, S.
Nowak, M.
Powiązania:
https://bibliotekanauki.pl/articles/791652.pdf
Data publikacji:
2015
Wydawca:
Wyższa Szkoła Zarządzania Środowiskiem w Tucholi
Tematy:
lesnictwo
lasy
gospodarka lesna
zdjecia lotnicze
bezzalogowe statki powietrzne
forestry
forest
forest economy
aerial photo
unmanned aerial vehicle
use
Opis:
Bezzałogowe Statki Powietrzne - z początku traktowane jako „zabawka”, z biegiem czasu i postępu technologicznego stały się pełnoprawnym narzędziem wykorzystywanym w gospodarce, w tym w leśnictwie i ochronie środowiska. Możliwości techniczne BSP pozwalają im, poza lotami kierowanymi przez operatora, na wykonywanie lotów autonomicznych (po zaplanowanej trasie) z ładunkiem dochodzącym do kilku a nawet kilkunastu kilogramów. Wyposażone w różnego rodzaju urządzenia rejestrujące mogą być wykorzystywane w ochronie przeciwpożarowej, ochronie przyrody, ochronie i hodowli lasu, gospodarce łowieckiej, urządzaniu lasu. Dodatkowym atutem używania BSP w wielu dziedzinach gospodarki jest niski koszt użytkowania w stosunku do lotnictwa załogowego oraz duża mobilność urządzeń. Dzięki podglądowi obrazu na żywo BSP umożliwiają obserwacje sytuacji niebezpiecznych takich jak pożary lasów, oszukiwanie zaginionych osób czy rozmaite akcje ratunkowe. Ograniczeniem w stosowaniu BSP są zapisy prawa lotniczego, zezwalające na komercyjne wykorzystanie BSP przez osoby posiadające świadectwo kwalifikacyjne operatora BSP w lotach wykonywanych w zasięgu wzroku.
Unmanned Aircraft that initially was treated as a “toy” in time and with technological progress have become a rightful tool used in economy including forestry and environment protection. Technical potential of unmanned aircraft allow them, but for operator-controlled flights, to perform autonomic flights (a planned route) with a cargo of a few or even a few dozens of kilograms. The aircraft being equipped with various recording devices can be used for purposes of fire protection, environment protection, protection and cultivation of forests, wildlife management, and forest arrangement. The use of unmanned aircraft in economy offers yet another advantage, namely a low cost of use compared to manned aviation as well as large mobility of devices. Thanks to live preview image unmanned aircrafts allow to observe dangerous situations such as forest fires, looking for missing people or other various rescue operations. The use of unmanned aircraft is limited by regulations of aviation law that allows only the commercial use of the aircraft by persons having a qualifying certificate of an unmanned aircraft operator in flights performed in view.
Źródło:
Zarządzanie Ochroną Przyrody w Lasach; 2015, 09
2081-1438
2391-4106
Pojawia się w:
Zarządzanie Ochroną Przyrody w Lasach
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:
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:
Relacje pomiędzy aktywnością enzymatyczną a właściwościami gleb i sposobem użytkowania
The relationship between soil properties, enzyme activity and land use
Autorzy:
Błońska, E.
Lasota, J.
Zwydak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1293541.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
gleby lesne
uzytkowanie gleb
wlasciwosci fizykochemiczne
enzymy glebowe
dehydrogenazy
ureaza
aktywnosc enzymatyczna
forest soil
dehydrogenase activity
urease activity
land use
Opis:
The aim of this study was to assess the effects of different types of land use (forest, tillage and pasture) on soil properties, especially enzymes activity. Our investigation was carried out on 53 research plots with 11 plots in broadleaved forest stands, 12 plots in mixed broadleaved stands, 10 plots in mixed coniferous stands, 9 plots on tillage and 11 plots on pasture. The soil samples were collected from a depth of 0–15 cm after removing the organic horizon. Contents of organic carbon and nitrogen, pH and soil texture were investigated. Furthermore, dehydrogenase and urease activity were determined. Significant differences in the enzyme activity between forest and agricultural soils were observed, thus demonstrating that enzyme activity is influenced by the organic matter content of the soil. The highest enzyme activity was recorded in the forest soil within broadleaved stands, whilst the lowest activity was found in tillage soil, because tillage soil contained significantly less organic matter. High enzymatic activity of pasture soils is the combined result of vegetation type and the lack of plowing.
Źródło:
Leśne Prace Badawcze; 2017, 78, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie funduszy europejskich w zakresie leśnictwa, ochrony środowiska i ochrony przyrody
The use of European funds in the field of forestry, environmental protection and natural protection
Autorzy:
Beker, C.
Kozluk, S.
Blajer, K.
Powiązania:
https://bibliotekanauki.pl/articles/791588.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Zarządzania Środowiskiem w Tucholi
Tematy:
lesnictwo
ochrona srodowiska
ochrona przyrody
fundusze unijne
rozwoj regionalny
gospodarka lesna
fundusze strukturalne
wykorzystanie funduszy unijnych
forestry
environment protection
nature protection
European Union fund
regional development
forest economy
structural fund
use
fund use
Źródło:
Zarządzanie Ochroną Przyrody w Lasach; 2017, 11
2081-1438
2391-4106
Pojawia się w:
Zarządzanie Ochroną Przyrody w Lasach
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 1-12 z 12

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