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Assessment of lnternal and External Benefit of Wate and Soil Conservation Eco-economic System in the Small Watershed

Wu Bin(College of Water and Soil Conservation,BFU)Wang Bing(Chinese Academy of Forestry,Beijing 100091)  
The eco-economic benefit can be divided into two parts in the stnall watershed in which some measures of water and soil conservation have been done. The one part of the benefit occures within the watershed, people benefit from the watershed by using the internal resources of eco-economic system, so it is called internal benefit. The other part affects outside the watershed, people benefit from the watershed by using the external resources of eco-economic system,so it is called external benefit.In this paper, the way of multiple index of environment productivity and the way of benefit coefficient are used to set up the assessing models of internal and external benefit in the watershed.
【Fund】: 国家教委霍英东教育基金
【CateGory Index】: F326.24
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