内蒙古鄂托克前旗地区苦豆子植被指数信息提取的研究

苦豆子是一种兼具药用、经济、生态等多方面价值的灌草,本文利用NDVI、DVI和MSAVI等7种植被指数(Vegetation Indices)对内蒙古鄂托克前旗地区的苦豆子资源进行遥感分类提取,并且利用分类精度评价和信噪比评价2种方法比较了这几种植被指数在苦豆子分类上的优劣。经过对比分析,认为修正土壤调节植被指数(MSAVI)可以根据植被的郁闭度来调节土壤调节参数,在苦豆子遥感分类提取上具有明显的优势。

Vegetation Index (VI) Analysis on Information Classification of Sophara alopecuroides L in Etuoke Township, Inner Mongolia

Sophara alopecuroides L is a species of shrub,which has not only medical value,economical value but also ecological value.The classification of Sophara alopecuroides L in Etuoke Town,Inner Mongoulia was extracted with 7 vegetation indices such as NDVI,DVI and MSAVI,and then those methods were compared with classification precision assessment and signal-to-noise ratio assessment and the analysis result showed that by signal-to-noise ratio assessment MSAVI was a better method among others because it could fluctuates according to green coverage.The author implied that MSAVI is a good method to extract the information of Sophara alopecuroides.The research provides an approach for the classification of Sophara alopecuroides by means of remote sensing and has great merit to the exploitation of Sophara Alopecuroides.