三峡库区农业生态系统综合评价研究

基金项目: 重庆市农业综合开发办项目“三峡库区生态农业模式及其评价研究”部分研究内容

A study on the comprehensive assessment of agro—ecosystem in the Three Gorges Reservoir Area

College of Agronomy and Life Sciences,Southwest Ag ricultural University,Chongqing400716,China

摘要: 采用Delphi法与A 法相结合方法，研究建立了三峡库区农业生态系统综合评价指标体系；并通过建立模糊隶属函数模型和确定评价指标标准值，对重庆市丰都县包鸾农业综合开发区农业生态系统进行模糊综合评判，结果表明该区农业生态系统综合效益较差，亟待改进；其3大效益社会效益>生态效益>经济效益，这与实际情况相符。
- 三峡库区 /
- 农业生态系统 /
- 综合评价 /
- 指标体系
Abstract: According to the principles in setting up index system of eco-agriculturalland evaluation．a reference index cor-pus which can be selected by diferent eco-agricultural regions is established．The principal component analysis(PCA)is used to select and optimize indexes from nineteen ones in four index groups．Finally，eleven indexes are defined as the index system of land evaluation for the eco-agricultural county、
- Eco-agriculture /
- Land evaluation /
- Index system /
- Principal component analysis(PCA)