Temat: lasy doświadczalne - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Anomalie temperatury powietrza w Lasach Doświadczalnych SGGW w Rogowie w latach 1924–2015
Air temperature anomalies in experimental forests in Rogow in 1924–2015
Autorzy:: Chojnacka-Ożga, L.
Ożga, W.
Powiązania:: https://bibliotekanauki.pl/articles/1292182.pdf
Data publikacji:: 2018
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: lesnictwo
meteorologia
lasy
pomiary meteorologiczne
pomiary temperatury
temperatura powietrza
anomalie termiczne
zmiany temperatury
lata 1924-2015
Lasy Doswiadczalne SGGW w Rogowie
long distance dispersal
sea-buckthorn
soil conditions
slope aspect
Opis:: Long distance dispersal is a key process occurring in plant communities and is particularly important for pioneer species like sea-buckthorn (Hippophaë rhamnoides L.) which survival strongly depends on colonizing newly created post-disturbance habitats. Sea-buckthorn, a cluster-forming shrub, is commonly used in Poland in the reclamation of soil-less areas devastated the by mining industry and for these areas a generative expansion of planted populations is usually observed. The main objective of this study was to assess the long-distance dispersal of this species in areas previously disturbed by industrial activity. Our observations were made on a 223.75 ha large section of the internal waste heap of the Bełchatów lignite mine, Central Poland. The area was colonized by sea-buckthorn specimens originating from a population planted on the nearby external waste heap. During the search for newly established sea-buckthorn clusters, their position and size were recorded and the preferences for specific site conditions were assessed using the Ivlev's electivity index. New specimen were observed at distances between 600 m and 3600 m from their potential seed source. The mean cluster density was 1.37 ha-1. The observed pattern of long distance dispersal is linked with to behavior of frugivorous birds. The largest cluster densities were observed along ditches (9.83 ha-1) and on open areas with less developed plant cover, while the lowest cluster density occurred in afforested areas (0.51 ha-1). Poor sandy substrate reduced the probability of plant establishment compared to richer loamy sands. There appeared to be no influence of slope aspect on the probability of sea-buckthorn establishment.
Źródło:: Leśne Prace Badawcze; 2018, 79, 1
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Plan urządzenia lasu w Polsce - problemy i kierunki rozwoju
Forest management plan in Poland - problems and development directions
Autorzy:: Jaszczak, R.
Bankowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2142636.pdf
Data publikacji:: 2020
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: mountain forests
urban forests
experimental forests
private forests
social factor
economic factor
lasy górskie
lasy miejskie
lasy doświadczalne
lasy prywatne
czynnik społeczny
czynnik ekonomiczny
Opis:: nowadays, improving forest management is done by way of amendments to the forest management instructions, silvicultural rules and forest protection instructions. From the point of view of forest management, the most important is the forest management plan, the basic document prepared for a specific object, containing a description and assessment of the state of the forest, as well as the objectives, tasks and ways of forest management. Before each subsequent revision of the forest management guidelines, new instructions are developed in consultation with the public, based on discussions on the proposed changes that are in each case to serve as the best plan for forest management. the forest management plan is vital as it ties together silviculture, conservation, production and non-production purposes as well as social forestry tasks, but only if the primary and operational nature of the objectives considered at the stage of creating the plan are recognized. therefore, the role of forest management in shaping and protecting the environment cannot be overestimated. In this work, we outline the basic principles and rights related to both, forest management under various forms of ownership, as well as detailed guidelines for the content of the forest management plan. We found that the specificity of mountain forests requires the use of different rules and methods. taking into account the exis- ting rich scientific achievements, it is tempting to attempt to develop forest management instructions specifically for mountain forests, whether in the form of a separate chapter or a separate publication. the basic problem with forest management under other forms of ownership (urban, experimental, private forests) is the lack of a detailed legal basis accounting for their specific nature. therefore, appropriate steps should be taken towards intro- ducing appropriate new or supplementary provisions into the forest legislation, which would allow for the development of modern standards. For the state Forests, forest management instructions should be prepared by a team of experts appointed by the Minister of the Environment who will approve the finished document for official use. the forest management plan should include an economic annex focused on the forecast of the expected financial result, inclu- ding costs associated with a deviation from the optimal due to social or protective reasons.
Źródło:: Leśne Prace Badawcze; 2020, 81, 3; 139-146
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Zroznicowanie funkcji lasu dla wybranych cech taksacyjnych drzewostanow
Diversification of the forest functions for the chosen taxation traits of tree stands
Autorzy:: Golojuch, P
Pokora, J.
Powiązania:: https://bibliotekanauki.pl/articles/880750.pdf
Data publikacji:: 2008
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:: lesnictwo
urzadzanie lasu
funkcje lasu
waloryzacja
lasy
las wielofunkcyjny
cechy taksacyjne
typy siedliskowe lasu
drzewa lesne
gatunki panujace
wiek drzew
Nadlesnictwo Doswiadczalne Zielonka
Opis:: Rosnące zapotrzebowanie społeczne na pozagospodarcze funkcje lasu zmusza leśników do poszukiwania metod równoważenia znaczenia wszystkich funkcji. Do realizacji nowych zadań leśnictwu niezbędne są dane, które pozwolą określić zdolność lasu do spełniania wielostronnych funkcji i aktualny stopień ich realizacji. Jednym ze sposobów pozyskania takich informacji może być opracowanie punktowej metody oceny funkcji lasu. Prezentowana praca jest próbą weryfikacji opracowanej metody waloryzacji funkcji lasu, polegającej na analizie funkcji lasu w zależności od takich cech jak typ siedliskowy lasu, gatunek panujący oraz wiek gatunku panującego.
The observed growing social demand for non-economical forest functions makes it necessary for foresters to search for ways of balancing the importance of individual functions of forests. In order to fulfil these new tasks, foresters need the essential data which will allow them to determine the capability of forests to accomplish their multilateral functions and to assess the current level of their realisation. The presented paper constitutes an attempt to verify the developed method of evaluation of forest functions involving the analysis of forest functions in relation to such traits as: forest site type, dominant species as well as the age of the dominant species.
Źródło:: Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2008, 10, 3[19]; 217-229
1509-1414
Pojawia się w:: Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:: Biblioteka Nauki

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