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《Bulletin of Soil and Water Conservation》 2006-02
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Evaluation of Ecological Functions in Returning Farmland to Afforestation Project Area in Datong County of Qinghai Province

LI Shi-rong~1,LI Wen-zhong~1,LI Fu-yuan~2,ZHAO Wan-qi~2,ZHOU Xin-cheng~1(1.College of Soil and Water Conservation,Beijing Forestry University,Beijing 100083,China; 2.Forestry and Tourism Bureau of Datong County,Datong County 810100,Qinghai Province,China)  
On the basis of the theory of eco-economics and by the applying analytic hierarchy process(AHP),an evaluation index system and an evaluation model for compreneasive ecological benefits of the returning farmland to afforestation in the upper reaches of the Yellow River are proposed.A case study was carried out in Datong County,Qinghai Province,for comprehensive ecological benefits of the returning farmland to afforestation in the vegetation types of nature spruce forests,reuse farmland for woodland,natural wasteland and natural shrub in comparison with the agro-ecosystems.Results show that ecological benefit indexes of all the vegetation types,such as natural spruce forests,reuse farmland for woodland,natural wasteland and natural shrub,are higher than that of the agro-ecosystem.The comprehensive ecological benefit indexes are in an order of natural spruce forestsreuse farmland for woodland natural shrub farmland natural wasteland.The study results can be referred for the ecological regeneration project of the returning farmland to afforestation in the upper reaches of the Yellow River.
【Fund】: 国家“十五”攻关课题项目(2001BA510B0102)
【CateGory Index】: S718.5
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