基于3S技术的生态环境监测评价——以南四湖地区为例

The Monitoring and Analysis of Ecological Environment Quality of the Nansi Lake Based on 3S Technology

利用遥感图像处理应用程序ERDAS IMAGINE对山东省南回湖地区TM扫描影像进行处理,然后用ArcGIS配合IDL开发语言,对2000—2005年的土地利用变化情况进行动态监测,从而获得了该地区在本世纪初的6年时间里土地利用情况变化的信息,从而为南四湖地区生态系统未来的可持续发展提供了思路和依据.

The Nansi Lake was taken as the study area in this research and Landsat TM Image was used as the main information resource. With the help of the remote sensing image processing software ERDAS IMAGE,ENVI,the GIS software ARCGIS and IDL,the change of land use in the Nansi Lake between 2000 and 2005 was dynamically monitored. The research indicates that the area of grassland decreased by 771 km2 ,the area of permanent wetland decreased by 100 km2 ,and the area of urban construction land in- creased by 665 km2 during the six years. The quality of the eco-environment of the lake is now at an ordina- ry level and therefore it is of great importance to objectively realize and evaluate the existing eco-environ- ment quality and take corresponding protection measures for the sustainable development of the economic social and eco-environment in the Nansi Lake.