基于Sentinel卫星及无人机多光谱的滨海冬小麦种植区土壤盐分反演研究——以黄三角垦利区为例

奚雪,赵庚星,高鹏,崔昆,李涛

Inversion of Soil Salinity in Coastal Winter Wheat Growing Area Based on Sentinel Satellite and Unmanned Aerial Vehicle Multi-Spectrum— A Case Study in Kenli District of the Yellow River Delta

XI Xue,ZHAO GengXing,GAO Peng,CUI Kun,LI Tao

表4 试验区样点光谱指数与实测土壤盐分含量相关性

Table 4 Correlation between the spectral indexes of sample points and the measured soil salinity content in test area

变量 Variable SS SI NDVI DVI RVI GRVI SS 1 SI 0.770** 1 NDVI -0.787** -0.808** 1 DVI -0.780** -0.768** 0.953** 1 RVI -0.560** -0.696** 0.890** 0.844** 1 GRVI -0.432** -0.690** 0.468** 0.557** 0.398** 1