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Towards sustainable management of mixed dipterocarp forests of South-east Asia: moving beyond minimum diameter cutting limits

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Title Towards sustainable management of mixed dipterocarp forests of South-east Asia: moving beyond minimum diameter cutting limits
 
Creator Sist, P.
Fimbel, R.
Sheil, Douglas
Nasi, Robert
Chevallier, M.H.
 
Subject dipterocarpaceae
logging
silvicultural systems
biology
mixed forests
forest trees
forest ecology
diversity
 
Description Selective logging applied in tropical forests is based on one universal criterion: a minimum diameter cutting limit for all commercial timber species. Minimum diameter cutting limits in mixed dipterocarp forests of the Malesia region lead to high felling intensities (10–20+ trees per hectare). Such extraction rates create massive stand damage (>50% of the remaining tree population), which has a negative impact on the regeneration and growth of many harvested dipterocarp species. As such, the minimum diameter cutting limit approach is seldom compatible with sustainable forest management. Where basic ecological characteristics of the commercial species are considered in timber harvesting prescriptions, mixed dipterocarp forests appear capable of sustained timber yields, habitat conservation, and providing other goods and services. This paper first presents the main silvicultural systems developed in mixed dipterocarp forests of Western Malesia and then reviews current knowledge of dipterocarp biology to finally develop guidelines aimed at improving the ecological sustainability of production forests of Western Malesia. These guidelines, a pragmatic reflection of science and ‘best guess’ judgement, include: (1) integration of reduced-impact logging practices into normal management operations; (2) cutting of eight trees per hectare or less (with a felling cycle of 40–60 years to be determined according to local conditions); (3) defining minimum diameter cutting limits according to the structure, density and diameter at reproduction of target species; (4) avoiding harvesting species with less than one adult tree per hectare (diameter at breast height [dbh] larger and equal to 50cm over an area of 50–100 ha); (5) minimizing the size and connectivity of gaps (
 
Date 2003
2012-06-04T09:08:53Z
2012-06-04T09:08:53Z
 
Type Journal Article
 
Identifier Sist, P., Fimbel, R., Sheil, D., Nasi, R., Chevallier, M-H. 2003. Towards sustainable management of mixed dipterocarp forests of South-east Asia: moving beyond minimum diameter cutting limits . Environmental Conservation 30 (4) :364-374. ISSN: 0376-8929.
0376-8929
https://hdl.handle.net/10568/18858
https://www.cifor.org/knowledge/publication/1409
 
Language en
 
Source Environmental Conservation