基于RS和GIS肇东市生态环境质量综合评价

以2011遥感图像为主要数据源,借助于RS和GIS技术,构造以栅格数据为主多源空间信息,基于GIS空间叠加分析基础上,完成研究区域生态环境的综合评价。研究结果表明,旱地和草地两者比例之和为70.49%,表明旱地和草地是该区域土地利用的主要类型;研究区域生境较差的面积最大,生境一般的区域面积最小,仅为0.14%;研究区域整体生态环境质量不高,多数区域处于较差水平,该生境的评价结果与实际情况基本相符,但具有较高生态价值的林地和湿地对局部区域生态环境的改善具有很积极影响。

Integrated Assessment of the Eco- environment in Zhaodong City Based on RS and GIS

The Landsat TM image of 2011a was as main data resource,based on RS and GIS,this paper adopted multi- resources information to built the grid data,through the spatial analysis of GIS, the integrated assessment of study region was made,the study results shown： the dry land and grassland were the main types of land use in the region,which accounted for 70. 49%,the land use land use structure accorded with regional economic and social development,the area of worse eco- environment was greatest,while the least area for the general eco-environment. The whole eco- environment of study region was bad,and the assessment results conform to the actual situation,meanwhile,the wetland,water and forest with high ecological value can make an active effects on improving the local eco- environment.