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题名: Simplification of pine forests due to utilization by Tibetan villages in southwest China
作者: Melick, David R.; null(杨雪飞); null(许建初)
刊名: ENVIRONMENTAL MANAGEMENT
关键词: community forest ; fuelwood ; logging ban ; non-timber forest products ; northwest Yunnan ; Pinus densata
英文摘要: In China, many rural communities depend upon forests to provide wood, fuel, fertilizer, animal bedding, and valuable non-timber forest products (NTFP). However, the degree to which forest resource extraction is compatible with new conservation aims is unclear because there is little information on the specific ecological effects of traditional forest collecting practices. Therefore, we compared the structure and floristics of Pinus densata forests exposed to three levels of resource extraction by Tibetan villages in northwest Yunnan: (1) a forest site protected from wood and timber removal, (2) moderately utilized forest sites exposed to traditional collecting practices, and (3) patches of highly utilized forest from which timber extraction is high in response to recent development pressures. The results show that understorey and cryptogamic species are reduced in all the utilized forest sites by comparison with the protected forest. However, the moderately utilized pine forests still provide good NTFP habitats by maintaining relatively high canopy covers, litter covers, and understorey structural complexity; this suggests that traditional forest resource use, while simplifying the forest, does not pose an increasing threat to pine forest integrity. By comparison, the highly utilized forests are transformed into open, herb-rich environments in which canopy covers and understorey complexity are depleted, and NTFP habitats are degraded. In the future it may be practical to enhance biodiversity by proscribing forest resource collection, but the immediate priority is to monitor the sustainability of forest utilization using indicators such as understorey development, litter cover, and cryptogamic richness.
出版日期: 2007-12-01
卷号: 40, 期号:6, 页码:866-879
DOI标识: 10.1007/s00267-007-9015-0
语种: 英语
收录类别: SCI
学科分类: Environmental Sciences
ISSN号: 0364-152X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2527
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.WWF S Pacific, Papua, Guinea
2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Heilongtan, Peoples R China

Recommended Citation:
Melick, DR; Yang, XF; Xu, JC.Simplification of pine forests due to utilization by Tibetan villages in southwest China,ENVIRONMENTAL MANAGEMENT,2007,40(6):866-879
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