基于DPSIR模型的华池县土地生态安全评价

Evaluation of Land Ecological Security in Huachi County Based on DPSIR Model

本文采用DPSIR模型,从驱动力、压力、状态、影响、响应5个方面总结相关研究经验,从社会经济和生态环境角度出发,构建评价指标体系,对华池县土地生态安全进行评价。结果表明,2013—2017年,华池县土地生态安全得到一定的改善,综合评价指数呈现上升趋势。森林覆盖率、人均建设用地、环境保护占GDP比重等因子对华池县的生态安全影响较大。

This paper used the DPSIR model to summarize relevant research experience from five aspects of driving force,pressure,status,impact and response,and built an evaluation index system to evaluate the ecological security of Huachi County′s land from the perspective of social economy and ecological environment.The results showed that the land ecological security of Huachi County had been improved to a certain extent from 2013 to 2017,and the comprehensive evaluation index showed an upward trend;factors such as forest coverage,per capita construction land,and the proportion of environmental protection in GDP had a greater impact on the ecological security of Huachi County.