SOCIETY EVALUATION OF SOIL AND WATER CONSERVATION IN LOESS PLATEAU——A CASE STUDY ON DINGXI AREA
建立了黄土高原水土保持社会效益评价体系，用层次分析法确定定西地区各指标权重，评价显示该地区水土保持取得了明显社会效益，但多数指标仍偏低。
This paper establishes the society benefit evaluation system of soil and water conservation in loess plateau,and makes certain the evaluated standards and exponents of this system.Based the Stat.data of Dingxi area,this paper makes certain the importance of each exponent in this system by AHP—Analytic hierarchy process,gives the society benefit evaluation of soil and water conservation in this area,and analysis the evaluated conclusion.The analysis declare: the exponents of Dingxi area are lower.Among this data,the exponent of soil keep is lower;the analogy exponent of labor force frame is ordinary;the comfort exponent of live is lower;the exponent of foodstuff security is ordinary;the exponents of soil yield efficiency and labor yield efficiency are ordinary hemline.But the analysis also show: these exponents were climbing in ten years.All of these show the soil and water conservation in this area have obtained obvious society benefit.