退耕工程生态环境效益发挥的影响因素调查研究——以安塞县退耕还林(草)试点为例

退耕还林 (草 )工程及其生态环境效益发挥的影响因素较多 ,自然因素和人为因素之间 ,人为因素中社会经济活动层面、政策法规层面和观念与意识层面等不同层面之间可以相互影响。结合安塞县退耕还林 (草 )试点 ,对不同影响因素的作用进行分析 ,表明各个因素对退耕工程生态环境效益发挥具有很大作用。同时建议考虑不同影响因素 ,丰富试点内容和形式 ,促进退耕工程能够理智进行和生态环境效益的尽快长期发挥

Survey of Factors Affecting Eco-environmental Benefits of Cropland Conversion-A Case-based Study on Cropland Conversion Experimental Station in Ansai County

There are two kinds of factors, natural factors and human impacts, affecting cropland conversion and its eco environment benefit. The human impacts involve three different levels of social-economic activity layer, policy and laws layer, and concept and consciousness layer. The different kind and level factors and their relationship are analyzed. Based on the survey of cropland conversion experiment in Ansai county, it can be seen that the three factors play very important roles in cropland conversion and its eco environmental benefits. The authors suggest that more experiments on natural factors and human impacts should be carried out to make the converting rational for the purpose of better and longer eco environment benefits.