基于GIS的平顶山市建设用地生态适宜性评价  

Ecological Suitability Evaluation for Construction Land in Pingdingshan City Based on GIS

作　　者：陈延辉[1] 杨柳[1] 汪伟[2] 

机构地区：[1]平顶山学院资源与环境科学学院,河南平顶山467002 [2]中南大学地球科学与信息物理学院,湖南长沙410083

出　　处：《地理空间信息》2014年第6期94-96,4,共3页Geospatial Information

基　　金：河南省科技攻关计划资助项目(1221102210559);平顶山学院高层次人才科研启动经费资助项目(2009062)

摘　　要：以平顶山市为例,探讨了煤炭资源型城市建设用地生态适宜性评价的指标体系、评价模型,以及在GIS和RS技术支撑下定量分析土地生态适宜性的方法。选取自然因素、社会经济因素、生态安全因素3个因素层12个因子层构成生态适宜性评价指标体系,采用层次分析法计算相关影响因子权重。在ENVI4.5支持下对平顶山市TM遥感影像进行解译,提取林地、耕地、水体、建设用地多因子图层,在Arc GIS10.0支持下建立数字高程模型,提取高度等地形因子。最后通过Arc GIS10.0空间分析模块对相关因子进行叠加分析,得到结果为:平顶山市最适宜用地占29.01%,较适宜用地占13.53%,基本适宜用地占14.71%,不适宜用地占16.05%,不可用地占26.70%。最后,结合评价结果,针对平顶山建设用地的特征提出合理化建议,以期为生态环境保护和城市规划建设提供科学依据。In this paper, taking Pingdingshan City for example, we discussed the index system of coal resource-based ecological urban construction land suitability evaluation, evaluation model and GIS and RS technology in support of land ecological suitability quantitative analysis methods. We selected the natural factors, socioeconomic factors, ecological safety factor three factors layer 12 factors layers ecological suitability evaluation index system, using AHP calculation of the relevant impact factor weights. In support of ENVI 4.5, we interpreted TM images of Pingdingshan City, and extracted woodland, arable land, water, construction land multifactorial layers. Through Arc GIS10.0 spatial analysis module, we overlay analyzed the relevant factors. The results are the following: In Pingdingshan City, the most suitable land for construction accounted for 29.01%, accounting for 13.53 percent more suitable land, basically suitable land accounted for 14.71%, unsuitable land accounted for 16.05%, non-land accounted for 26.7%.

关 键 词：建设用地 生态适宜性 指标评价体系 

分 类 号：P208[天文地球—地图制图学与地理信息工程]