安徽农业科学2017，Vol.45Issue(34)：207-210,4.
基于主成分分析的长春市土地生态安全评价
Evaluation of Land Ecological Security of Changchun City Based on Principal Component Analysis
孙艺宁 1许嘉巍1
作者信息
- 1. 东北师范大学地理科学学院,吉林长春130024
- 折叠
摘要
Abstract
Based on the present situation of land resources and the actual situation of social and economic development in Changchun City,this paper selected 15 factors as the evaluation indexes which are from the three aspects:nature,economy and society.Land ecological security situation of Changchun City from 2008 to 2014 was analyzed by using the principal component analysis method.The results showed that the trend of land ecological security in Changchun City from 2008 to 2014 could be divided into three periods:2008-2009 was the decline period;2009-2012 was the rapid growth period;2012-2014 was the steady rise period;overall the land ecological security situation of Changchun City was at the trend of increasing fluctuation from 2008 to 2014,and the land ecological security level changed from extremely unsafe gradeV to ideal for safety grade Ⅰ in a good stage of development.关键词
土地生态安全/评价/主成分分析/长春市Key words
Land ecological security/Evaluation/Principal component analysis/Changchun City分类
管理科学引用本文复制引用
孙艺宁,许嘉巍..基于主成分分析的长春市土地生态安全评价[J].安徽农业科学,2017,45(34):207-210,4.
