基于高光谱遥感和集成学习方法的冬小麦产量估测研究

费帅鹏,禹小龙,兰铭,李雷,夏先春,何中虎,肖永贵

Research on Winter Wheat Yield Estimation Based on Hyperspectral Remote Sensing and Ensemble Learning Method

FEI ShuaiPeng,YU XiaoLong,LAN Ming,LI Lei,XIA XianChun,HE ZhongHu,XIAO YongGui

表3 节水处理下光谱指数与产量相关性分析和光谱指数遗传力

Table 3 Correlation analysis of spectral index and grain yield under limited irrigation treatment, spectral index heritability

光谱指数 Spectral index 开花期 Flowering 灌浆前期 Early grain filling 灌浆中期 Mid grain filling |r| H2 |r| H2 |r| H2 NDVI 0.48*** 0.63 0.42*** 0.69 0.53*** 0.65 MCARI 0.57*** 0.64 0.49*** 0.70 0.56*** 0.68 NDRE 0.56*** 0.67 0.48*** 0.78 0.55*** 0.73 GNDVI 0.54*** 0.66 0.41*** 0.73 0.54*** 0.71 MSR 0.55*** 0.65 0.43*** 0.74 0.52*** 0.69 NDRSR 0.57*** 0.68 0.49*** 0.79 0.55*** 0.73 MTVI 0.45*** 0.64 0.46*** 0.68 0.49*** 0.68 MTCI2 0.50*** 0.62 0.45*** 0.71 0.50*** 0.66 MNDVI 0.52*** 0.64 0.49*** 0.67 0.51*** 0.71 RDVI 0.49*** 0.66 0.47*** 0.65 0.50*** 0.67 VDI 0.59*** 0.69 0.61*** 0.68 0.58*** 0.73 CI 0.48*** 0.64 0.49*** 0.74 0.52*** 0.74 VREI 0.55*** 0.68 0.48*** 0.68 0.52*** 0.69 ARVI 0.49*** 0.61 0.42*** 0.71 0.51*** 0.68 NDMI 0.44*** 0.73 0.49*** 0.66 0.50*** 0.72