ZHENG Jing-gang,XU Shu-na,YU Zheng-zheng,et al.Study on Ecological Security Evaluation of Land Resources in the Case of the Core Areas of Zhongyuan Economic Region[J].Research of Soil and Water Conservation,2013,20(03):273-277,282.
中原经济区核心区土地资源生态安全评价
- Title:
- Study on Ecological Security Evaluation of Land Resources in the Case of the Core Areas of Zhongyuan Economic Region
- 分类号:
- F301.24
- 摘要:
- 采用熵权赋权法构建了中原经济区核心区土地资源生态安全评价指标体系，综合评价了2002—2011年中原经济区核心区土地资源生态安全动态。结果表明，2004年中原经济区核心区土地生态安全指数增加到最大值0.675 5，土地安全等级为“Ⅱ”级，较安全，2011年土地安全指数下降到0.310 6，土地安全等级退化为“Ⅳ”级，较不安全。2002—2011年，郑州市、许昌市和焦作市的土地资源生态安全动态呈“单峰”型，开封市和新乡市的土地资源生态安全动态呈“双峰”型，洛阳市的土地资源生态安全动态呈“U”型。中原经济区核心区土地资源生态安全的空间变化呈现出“以郑州为中心，南北恶化、东西好转”的特点。
- Abstract:
- The evaluation index system of land resources ecological security of the core areas of Zhongyuan Economic Region was constructed based on AHP and entropy weight method, and the dynamic of land resources ecological security of the core areas of Zhongyuan Economic Region during 2002—2011 was evaluated. The results show that the land resources ecological security index increased to 0.675 5 in 2004, and the land security rating indicated ‘Ⅱ’-safe level. However, the land resources ecological security index declined to 0.310 6 in 2011, and the land security rating indicated ‘Ⅳ’-less safe level. During 2002-2011, the dynamics of land resources ecological security showed a single peak curve in Zhengzhou, Xuchang and Jiaozuo, a bimodal curve in Kaifeng and Xinxiang, and an ‘U’ curve in Luoyang. Moreover, the spatial change of land resources ecological security was characterized as a center of Zhengzhou, worsening in south and north region, improving in east and west region in the core areas of Zhongyuan Economic Region
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备注/Memo
收稿日期:2012-11-11;改回日期:2012-12-30。
基金项目:河南省政府决策研究招标课题（2011B725）；河南省高等学校青年骨干教师（2010GGJS-176）
作者简介:郑敬刚(1975-),男,河南许昌人,副教授,博士,主要研究方向为城市生态及土地利用。E-mail:zhengjinggang@sohu.com