安徽农业科学2018，Vol.46Issue(5)：62-65,4.
基于三角模型的关中5市土地生态安全区域差异分析
Regional Difference Analysis of the Five Cities of Guanzhong about the Land Ecological Security Based on the Triangle Model
黄美菱 1黄露滴 1龙飞利2
作者信息
- 1. 长安大学地球科学与资源学院,陕西西安710054
- 2. 苍溪县城郊中学,四川苍溪628400
- 折叠
摘要
Abstract
Taking five cities of Guanzhong Plain as the research area according to the present situation of the land resources and the characteristics of economic development,based on Shanxi Statistical Yearbook and China City Statistical Yearbook in 2009,2012 and 2015,selected 16 indexes to build land ecological security evaluation index system from the economic feasibility,social acceptability and resource environment rationality through standardizing,determine the weight,and calculating comprehensive index by some mathematical formulas.Building a triangle mode by the software of Grapher from three years to analyze land ecological security status and trend on the Guanzhong Plain.The results showed that:The triangle model could objectively reflect its present situation and the trend clearly;It presented the economic feasibility and rationality resources environment index increased,and social acceptability decreased;The land ecological security status development to the great direction,Xi'an form weak security to general safety,and the rest of the 4 cities from unsafe to weak security;The regional internal development uneven,there was a great gap in Xi'an and other 4 cities.关键词
三角模型/土地生态安全/状态及趋势/关中平原Key words
Triangle mode/Eco-security of land/Status and trend/Guanzhong Plain分类
资源环境引用本文复制引用
黄美菱,黄露滴,龙飞利..基于三角模型的关中5市土地生态安全区域差异分析[J].安徽农业科学,2018,46(5):62-65,4.
