基于遥感技术的内蒙古自治区河套-土默川平原耕地盐碱化监测

Salinization Monitoring of Cultivated Land in Hetao-Tumechuan Plain of Inner Mongolia Autonomous Region Based on Remote Sensing Technology

文章以内蒙古自治区河套-土默川平原为研究区,在RS和GIS技术支持下和野外样本采集的基础上,以Landsat TM/OLI卫星影像为数据源,通过计算盐碱度与波段的相关性构建出反演模型,以专家决策树进行分类,对2006年—2014年耕地盐碱化进行了动态监测,结果表明:反演结果精度优于77%,成果可为当地生态环境治理提供数据支撑。

In this paper,the Landsat TM/OLI satellite images are used as the data source for the study area of Inner Mongolia Hetao-Tumochuan Plain,with the support of RS and GIS and field sample collection,by calculating the correlation between salinity and wave band,the inversion model was established,and the salinization of cultivated land was dynamically monitored by expert decision tree from 2006 to 2014.The results showed that the inversion precision was better than 77%.The results could provide data support for local eco-environmental management.