Emergy Evaluation of a Village Ecosystem in Wolong Nature Reserve in China

摘要

Due to historic reasons, there are several human settle-merits in nature reserves and national parks, which may constitute a threat to biodiversity.Establishment ofnature reserves may how-ever 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 electrici-ty in energy consumption may play a positive role for environmen-tal conservation.Despite some successful experiences, there are some remaining issues that need to be addressed in the ecological rehabilitation of the village ecosystem.