基于因子分析法的安塞县退耕区生态经济联合生产水平评估

根据土地利用方式不同，将安塞县退耕区生态经济联合生产划分为经济林、耕地和生态林3种不同类型。在此基础上，根据相关研究成果，构建安塞县退耕区生态经济联合生产水平评价指标体系，并用因子分析法对安塞县167份农户调研数据进行定量分析和实证研究。结果表明：（1）安塞县生态经济联合生产总体水平不高，且农户之间差距很大。（2）经济林对生态经济联合生产总体水平起决定作用。（3）耕地和生态林类型对生态经济联合生产总体水平影响微弱。

Evaluation on the level of ecological and economic joint production of Ansai County

According to the different land use patterns, the ecological and economic joint production of Ansai County is divided into three different kinds about arable land, economic forests and ecological forests. This paper built the index system of the ecological and economic joint production and has conducted quantitative analysis and empirical research to 167 household survey data with factor analysis method. The conclusions were as follows:(1) the overall level of ecological and economic joint production was low, and the internal gap among different farmers was big. (2) the ecological and economic joint production of ecological forest played a decisive role to the overall level. (3)The type of ecological forests and arable land played a small role to the the overall level.