生态环境遥感解译精度判断及合理性分析

The judgment and rationality analysis of the ecological environment remote sensing interpretation accuracy

为了提高遥感影像室内解译精度,并对室内解译过程中不确定的地物类型进行验证,结合实际情况于2016年7月至9月进行锡林郭勒盟生态遥感核查工作,共计核查点位36个。核查结果表明锡林郭勒盟土地利用土地覆盖类型一级分类的判读精度为94.44%,二级分类的判读精度基本达到80%以上;植被覆盖度在15%-75%之间,野外核查与植被覆盖指数呈正相关关系。锡林郭勒盟地广人稀、矿产资源丰富,遥感解译可以更加容易的发现灾害点。

In order to improve the interpretation precision of remote sensing image indoor, meanwhile to verify the uncertainty in the indoor interpretation process of cover types, ecological remote sensing verification were proceeded in July to September 2016 in Xilingol area considered with actual situation, and there were 36 verification point totally. The results showed that accuracy of top level classification interpretation to land cover types of Xilingol area is 94.44%, the accuracy of secondary were more than 80% generally. The rate of vegetation coverage was between 15%-75%, positively correlated relationship was proved between field verification and vegetation cover- age.Xilingol area is a vast territory with a sparse population with abundant mineral resources, which means it is convenient to seek emergency with remote sensing interpretation.