Temat: forest use regulation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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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

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