山东西部平原粮棉主产区农业生态安全评价与分区研究——以聊城市为例  

Study on Agri-ecological Security Evaluation and Dipartition of Grain Food and Cotton Production Base

作　　者：张保华[1] 张二勋[2] 苗国增 丁存才 刘子亭[2] 董杰[2] 

机构地区：[1]河南大学环境与规划学院,河南开封475001 [2]聊城大学环境与规划学院,山东聊城252059 [3]山东省莘县林业局,山东莘县252400 [4]山东省莘县职业中专,山东莘县252400

出　　处：《安徽农业科学》2006年第16期4074-4076,共3页Journal of Anhui Agricultural Sciences

基　　金：山东省优秀中青年科学家科研奖励基金。

摘　　要：采用主成分—聚类分析方法对聊城市农业生态安全进行了评价与分区研究,结果表明:主成分分析法对众多评价指标有较强的综合表达,6项主成分表达了原指标体系信息量的96%以上,新变量在理论上较好地反映了农业生态安全的总体要求与耕地、农产品数量等主要方面;样本聚类方法比较客观地反映了研究区域8县(市、区)除农业自然资源外其他农业生产条件方面的差异,可信性较强。In this paper,based on indexes system,the agri -ecological security evaluation and dipartition of Kaifeng were synthetical evaluated with the principal component analysis and clustering analysis. The results showed that： （1）principal component analysis was efficient in synthetical expression of original indexes, the 6 principal components expressed more than 96 % information of original index system and well reflected in theory collective need, cultivated land and primary products amount, etc, in agriecological security. （2）the classification results from swatch clustering method of 8 evaluation regions reflected impersonally the difference in agriculture production conditions except natural resources of all evaluation regions. The results was beneficial to agricultural eco-environment conservation and sustainable development.

关 键 词：粮棉主产区 聊城市 农业生态安全 评价 分区 主成分 

分 类 号：S181[农业科学—农业基础科学]