三峡地区生态农业可持续性综合评价

Comprehensive Evaluation of the Sustainability of Ecological Agriculture in the Three Gorges Region

以重庆三峡生态经济区的19个区县为研究对象,根据该地区农业经济发展情况和主要生态环境问题,从生态农业生产可持续性、经济可持续性、生态可持续性三方面构建生态农业可持续性评价指标体系,并借助SPSS因子分析方法建立生态农业可持续性评价模型,实现对重庆三峡生态经济区各区县生态农业可持续性的综合评价,为生态农业建设提供一定依据.结果表明,受农业经济发展水平、农业集约化水平、土地资源丰度和农业生态环境影响,19个区县间农业生态可持续性差异较大,长寿区综合得分最高,为1.124,奉节县、酉阳县、巫溪县、巫山县、城口县生态农业可持续性最低.

The agricultural economy development situation and the main ecological environment problems in 19 counties/districts of Chongqing in the Three Gorges region are studied, an evaluation index system for sustainable ecological agriculture is developed from the aspects of sustainability of ecological agricultural production, economic sustainability and ecological sustainability, and a comprehensive assessment model is constructed with the help of SPSS factor analysis so as to provide theoretical guidance for the construction of ecological agriculture in this region. Owing to the differences in the levels of agricultural economic de- velopment and agricultural intensification, in land resource abundance and in agricultural ecological envi- ronment, the 19 counties/districts studied show considerable differences in ecological agricultural sustain- ability. Changshou District scores the highest （1. 124）, and Fengjie County, Youyang County, Wuxi County and Chengkou County have low scores.