| In this paper, took the Loess Plateau hilly and gully region of Ding xi Gao quan Small watershed as the study area.The application of ecological economics theories and methods, ecological restoration of Gaoquan small watershed profile after treatment were investigated. Accord to the characteristics of the study area, combined the actual situation with the associated watershed reference, established a relatively complete set of the application of high-Stephen Small Watershed Comprehensive benefit evaluation index system, base on the ecological indicators of environmental benefits,agricultural production efficiency indicators and indicators of socio-economic benefits of changes in data and related maps of the study area in 1980-1985 (before treatment) and 2000-2008 (after treatment), use the Analytical Hierarchy Process, the right to technical amendments to the entropy coefficient method and fuzzy comprehensive evaluation method Stephen Ding xi high ecological restoration of small watershed management benefits of a comprehensive analysis and research. Supported the future management work of the Loess Plateau small watershed in the Loess Plateau .The weight indicater was determined by combined the AHP and expert scoring method; Then used the right technology entropy method to derive the weight of an amendment to come to the end of each evaluation index weights; Finally, accorded to the right indicators weight and just the raw data of the immeasurable value of the use of mathematical models of the study area on the effectiveness of the final evaluation. Evaluation results with the actual situation shows that the method is more scientific and feasible. Evaluated integrated management of ecological restoration benefit as follows:(1)Before the treatment, the overall efficiency index of Gao quan was 47.6, the highest index of eco-environmental benefits was31.6, the agricultural production efficiency index was 12.8, the lowest socio-economic indicators of efficiency index was 3.6;(2) After he treatment, the overall efficiency index of Gao quan was 53.9, the highest index of eco-environmental benefits was 36.9, lower efficiency of agricultural production was 13.2, the lowest socio-economic indicators of efficiency index was 3.8;(3) From the horizontal comparison, all the index after the treatment were higher than before the treatment . And the order of all indicators were the same before or after the treatment : Benefit of eco-environmental > Benefit of agricultural production > Benefit of social and economic;(4) From the vertical Comparison, eco-environmental efficiency index was the highest in the comprehensive environmental efficiency.Socio-economic indicators was the lowest.Eco-environmental efficiency index was significantly higher than that of agricultural production efficiency index and the index of socio-economic efficiency.In a word , Gaoquan small basin was in a relatively stable stage after the integrated ecological restoration after treatment . all the indicators after the treatment were higher than before.The eco-environmental benefits, agricultural production efficiency and economic benefits all had a significant increment.That showed the measures for ecological restoration were work.No matter before or after the measures for the ecological restoration of Gao quan,the environment efficiency index was the highest ,then the agriculture production efficiency index ,the last is the social and economic efficiency index. That showed the measures for the ecological restoration had a directly significant work on the overall efficiency ,such as the environment efficiency ,because the climatic conditions limited the work of agriculture and sco-economic efficiency.These results also showed:the environment efficiency was the most direct facter to the agriculture production and sco-economic efficiency.,the mainly reason of this result was drought .The evaluation results was considerably consist with the actual situation of the Gao quan, so the evaluation method in this paper was reasonable and pratical.
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