Emergy Evaluation of a Village Ecosystem in Wolong Nature Reserve in China
Emergy Evaluation of a Village Ecosystem in Wolong Nature Reserve in China作者机构:Institute of Environment and Regional Development Sichuan University Chengdu Sichuan 610064 China Department of Land Economy University of Cambridge cambridge CB3 9EP UK Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu Sichuan 610041 China
出 版 物:《Chinese Journal of Population,Resources and Environment》 (中国人口·资源与环境(英文版))
年 卷 期:2009年第7卷第2期
页 面:59-66页
学科分类:0907[农学-林学] 090705[农学-野生动植物保护与利用] 07[理学] 08[工学] 09[农学] 0834[工学-风景园林学(可授工学、农学学位)] 0713[理学-生态学]
主 题:nature reserve village ecosystem emergy analysis human settlement
摘 要:Due to historic reasons, there are several human settlements in nature reserves and national parks, which may constitute a threat to biodiversity. Establishment of nature reserves may however generate constraints for development of local communities residing in these reserves. The village ecosystem of Zhuanjinglou Village in Wolong Nature Reserve includes population, farming and livestock (domestic and alpine) and forest ecosystem. An emergy analysis of agro-ecosystem (including the farming and livestock ecosystem) and energy consumption in Zhuanjinglou Village indicates that livestock ecosystem plays an important role in village ecosystem, which may be the source of great pressure on the state of the local environment. The increasing ratio of electricity in energy consumption may play a positive role for environmental conservation. Despite some successful experiences, there are some remaining issues that need to be addressed in the ecological rehabilitation of the village ecosystem.