水土保持效益评价指标研究

基于对陇东黄土高原部分地区的问卷调查和相关文献资料分析,发现大多数群众对水土流失综合治理事业及其各项措施具有很高的认同感,但参与治理的积极性不高,进而影响了综合治理的效果;小区域的水土保持工作虽有成效,但因非示范区、非项目区效果不明显,大尺度地域范围内综合治理的成效就有限。造成这些问题的一个重要原因是没有充分重视综合治理实施者的经济利益;因此,水土流失综合治理的评价,应将经济效益放在首位。利用综合治理的经济利益调动实施者的参与热情和积极性,把引导群众致富与其客观上所具有的生态效益和社会效益紧密结合,以达到综合治理目的。基于此,提出了综合治理效益评价指标体系。

Evaluation index of the soil and water conservation benefits

Through questionnaire survey and the analysis of relative literature data on soil and water conservation of the Loess Plateau in east Gansu Province,it is found that most of local people are aware of the importance of soil and water conservation measures,but they are not so active in the participation in the work,which thus reduces the effects of comprehensive control.Soil and water conservation obviously succeeds at small scale.However,at large scale the implementation is not as desirable as expected because of the undesirable applications in the non-demonstration zones and non-project areas.The major reason for this is that an insufficient attention is paid to the economic benefits during the implement of soil and water conservation measures.Therefore,an evaluation of comprehensive control of soil and water loss should give first priority to economic efficiency.In order to achieve the better comprehensive control,implementers' enthusiasm and initiative should be mobilized by economic benefits and the efforts for them to get rich should combine closely comprehensive control with ecological and social benefits.Based on the consideration,a system of evaluation indexes is presented for comprehensive control of soil and water loss.