基于P-S-R的土地资源生态环境安全评价——以湖北省为例

发布时间：2018-03-13 17:03

本文选题：湖北省　切入点：P-S-R(Prsssure-State-Response)　出处：《生态经济》2015年08期 　论文类型：期刊论文

【摘要】：基于P-S-R(Pressure-State-Response)概念框架,构建具有区域特色的土地资源生态环境评价指标体系,运用最优组合赋权法确定权重和综合评价法建立土地生态安全评价模型,并运用该模型对湖北省1998~2013年土地资源生态环境安全进行评价和分析。结果表明,近十六年来,湖北省土地生态压力呈逐年减少趋势,土地生态状态和土地生态响应呈逐年增大趋势,湖北省的土地资源生态环境安全呈上升趋势。同时,研究表明,耕地面积的人均占有量,农用化肥的施用数量,人口的自然增长率及人口密度指标对本区土地生态安全影响最大,要想提高土地资源生态环境安全就需要从以上四个方面着手。
[Abstract]:Based on the concept framework of P-S-RGR Pressure-State-Response, the evaluation index system of land resources ecological environment with regional characteristics is constructed, and the evaluation model of land ecological security is established by using the optimal combination weighting method to determine the weight and the comprehensive evaluation method to establish the evaluation model of land ecological security. The model is used to evaluate and analyze the ecological and environmental security of land resources in Hubei Province from 1998 to 2013. The results show that the land ecological pressure in Hubei Province has been decreasing year by year in the past 16 years. The ecological status of land and the ecological response of land are increasing year by year, and the ecological and environmental security of land resources in Hubei Province is on the rise. At the same time, the study shows that the per capita share of cultivated land area, the amount of fertilizer applied in agriculture, The natural population growth rate and population density index have the greatest impact on the ecological security of the land in this area. In order to improve the ecological and environmental security of land resources, we should start from the above four aspects.
【作者单位】：华中科技大学公共管理学院;浙江财经大学城乡规划与管理学院;
【基金】：教育部人文社会科学研究青年基金项目(13YJC630208) 国家自然科学基金项目(71403235) 国家“985”工程(2010~2020年)“非传统安全研究”资助项目
【分类号】：F323.211;X826

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