基于GIS的平顶山市景观生态风险评价  

The Assessment of Pingdingshan Landscape Ecological Risk Based on GIS

作　　者：罗帅伟[1] 李春妍[1] 邱布布 王素娜[1] Luo Shuaiwei Li Chunyan Qiu Bubu Wang Suna(Institute of Tourism and Planning, Pingdingshan University, Pingdingshan 467000, Henan China School of Environmental ＆ Resource Sciences, Zhejiang A＆F University, Hangzhou 311300, China)

机构地区：[1]平顶山学院旅游与规划学院,河南平顶山467000 [2]浙江农林大学环境与资源学院,杭州311300

出　　处：《河南科学》2016年第10期1712-1716,共5页Henan Science

基　　金：国家自然科学基金青年基金项目(31301896);2015年河南省政府决策项目(2015B133);平顶山学院青年科研基金项目(PXY-QNJJ-2014009)

摘　　要：以平顶山市为研究区域,结合GIS技术,以遥感影像为主要数据源,在对平顶山市景观分类及风险源分析的基础上构建了景观生态风险评价模型,并评价分析了研究区景观生态风险的时空分布特征.研究表明低风险区、较低风险区和中等风险区面积均是先减后增,较高风险区面积则逐渐增加,高风险面积呈较少趋势,而平顶山的整体生态风险属于中等偏低水平,研究区生态风险水平呈现出条带形状,由南部向北部呈逐渐增加趋势.Taking Pingdingshan as the study area,combining with GIS technology,taking the remote sensing images as the primary source of data,this paper constructed landscape ecological risk assessment model on the basis of the classification of landscape and the analysis of the sources of risks in Pingdingshan,and evaluated and analyzed the characteristics of temporal and spatial distribution of landscape ecological risks. These studies have shown that the low-risk areas,the lower-risk areas increase after the first decreased,medium risk area increases,a high risk area shows trend of less,while the overall ecological risk in Pingdingshan is medium-low level,ecological risk level of the study area has shown a stripe shape increaseing gradually from the south to the north.

关 键 词：GIS 风险源 权重 

分 类 号：X8[环境科学与工程—环境工程]