基于TM影像和SPSS软件天然草地植被指数及相关性分析

为了研究乌兰县天然草地植被指数特征,利用比值植被指数(RVI)、归一化植被指数(NDVI)、差值环境植被指数(DVI)、土壤调节植被指数(SAVI)、修正后的土壤调节植被指数(MSAVI)5种植被指数和植被信号与土壤噪音之比(S/N)对研究区天然草地植被指数进行研究,结果表明研究区天然草地植被覆盖度普遍表现不佳。这说明对研究区天然草地资源的利用应该慎重,并且应重视其生态价值。

Analysis of Grassland Vegetation Index Using TM Images and SPSS Software

For studying the vegetation index of grassland in Wulan County,the ratio vegetation index(RVI),normalized difference vegetation index(NDVI),difference vegetation index(DVI),soil-adjusted vegetation index(SAVI),modified soil-adjusted Vegetation index(MSAVI) and ratio of vegetation signal to soil noise(S/N) were used to calculate the vegetation index of study area,the result showed that the vegetation coverage of grassland in study was low,which illustrated that the natural grassland resources should be carefully utilized and its ecological value should be paid attention to in the study area.