%0 Journal Article
%T An analysis on eco-economy system health in Zhifanggou Small Watershed of Ansai on Loess Hilly-Gullied Region<br>黄土丘陵区小流域生态经济系统健康评价
%A LIU Guo-bin
%A HU Wei-yin
%A XU Ming-xiang
%A <br>刘国彬
%A 胡维银
%J 自然资源学报
%D 2003
%I 
%X The aim of establishing a healthy ecosystem is to rehabilitate the degenerated ecosys-tem and turn the landscapes of the Loess Plateau green.The Chinese Government has promoted integrated watershed management measures for years to control soil erosion and improve the eco-environmental conditions in a hilly-gullied region of the Loess Plateau.However,there is still no proper method for assessing the health of the ecosystem.This paper,taking Zhifanggou Water-shed in Ansai County as an example,by using the hierarchical approach and selecting evalua-tion indicators such as forest and grass coverage,area of fundamental cropland,soil anti-scoura-bility,soil organic matter content,output/input ratio,per unit area crop yield,per capita net in-comes and benefit of soil erosion control by comprehensive management,the improvement pro-cess in ecosystem rehabilitation of the watershed was analyzed.The result showed that after about 20years of soil conservation practice,the ecosystem health index of the watershed has im-proved from0.178in1985to0.707in1999after experiencing initial restoration,stable im-provement and benign circulation period.This research introduced for the first time the new in-dicators of soil anti-scourability,soil organic matter content and gave the different weight value of indicators in health index calculation in the rehabilitation process.
%K health assessment
%K eco-economic system
%K small watershed
%K loess hilly and gully re-gion<br>黄土丘陵区
%K 小流域
%K 生态经济系统
%K 生态评价
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=4DCB9A3AF3395AF0101DE5302EF3C300&aid=9854BADA6B5F77E9&yid=D43C4A19B2EE3C0A&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=1AE5323881A5ECDC&eid=2A3781E88AB1776F&journal_id=1000-3037&journal_name=自然资源学报&referenced_num=38&reference_num=11