基于TOPSIS方法的土地生态安全评价——以神农架林区为例

发布时间：2018-08-24 16:42

【摘要】：在寻求经济最大化的同时,对土地、资源、生态、环境等进行保护以使社会经济处在可持续发展的状态,而对土地生态安全进行评价并为其提供基础数据和研究方向。运用专家咨询法和压力—状态—响应模型构建评价指标体系,结合层次分析法和熵权法确定指标权重,使用逼近理想点排序法对2004—2012年间神农架林区及其压力-状态-响应等3个子系统的土地生态安全状况进行研究与分析。结果显示,神农架林区的土地生态状态在2004—2008年呈波动下降趋势,2008—2012年呈上升趋势。就各子系统而言,压力层于2004—2008年急剧下降,2008—2012年回升,状态层呈"W"形,2007年达到顶峰,2006年和2008年为谷底;响应层波动上升。影响评价结果的指标因素主要有单位面积化肥施用量、第一产业增长速度、人均GDP、城市生活污水处理率、工业污染治理项目投资额等。通过对神农架林区的土地生态安全进行评价和研究,可为神农架林区的平衡持续发展提供理论参考。
[Abstract]:While seeking economic maximization, we should protect the land, resources, ecology, environment and so on so as to keep the social economy in a state of sustainable development, and evaluate the land ecological security and provide basic data and research direction. The land ecological security status of Shennongjia forest region and its three subsystems, pressure-state-response, were studied and analyzed by using the approximate ideal point sequencing method. The results showed that the land ecological status of Shennongjia forest region fluctuated and declined from 2004 to 2008, and from 2008 to 2012. In terms of each subsystem, the pressure layer dropped sharply from 2004 to 2008, rebounded from 2008 to 2012, and the state layer showed a "W" shape, peaked in 2007, reached a trough in 2006 and 2008; the response layer fluctuated upwards. The main factors affecting the evaluation results are the amount of fertilizer per unit area, the growth rate of primary industry, per capita GDP, and the city. Through the evaluation and Research on the land ecological security of Shennongjia forest area, it can provide theoretical reference for the balanced and sustainable development of Shennongjia forest area.
【作者单位】：江西农业大学国土资源与环境学院;
【基金】：国家自然科学基金(编号:41561107) 江西省自然科学基金(编号:20151BAB203039) 江西省教育厅科技项目(编号:GJJ13263) 江西农业大学科学研究基金自由申请项目
【分类号】：F301.2;X826

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