基于遥感与GIS的岷江上游生态环境质量研究

Research on Eco-environment Quality in the Upper Min River Basin Based on Remote Sensing and GIS Techniques

应用遥感和GIS技术及数理统计方法,运用景观格局指数和生态环境状况指数模型,以岷江上游卫星影像为数据源,定量分析了研究区2000～2005年间生态环境在时间和空间上的状况。结果表明,2000～2005年间研究区森林、灌木林、疏林地、建设用地面积增加,草地和耕地面积减少。岷江上游2005年生态环境质量较好,生态环境质量分级达到了优;岷江上游茂县2005年生态环境质量略微好于2000年,其余4个县生态环境质量在此期间无明显变化。

Based on the satellite image of the Upper Min River Basin, the eco-environment quality in the Upper Min River Basin had been monitored using remote sensing and GIS. The process and trend of the eco-environment in the Upper Min River Basin were thoroughly studied by models that were the range and regional differences of the eco-environment. The result indicated that the areas of forest, brush, woodland and cultivated land increased when the areas of grassland and grassland decreased between the year 2000 and 2005. The eco-environment quality was good in 2005. The change of ecoenvironment quality index was excellent. The eco-environment quality of Maoxian was better in 2005 than that in 2000.The changes of eco-environment quality were small in other 4 town during the 5 years.