基于GF-1/2卫星数据的冬小麦叶面积指数反演

吾木提·艾山江,买买提·沙吾提,陈水森,李丹

Inversion of leaf area index of winter wheat based on GF-1/2 image

HASAN Umut,SAWUT Mamat,Shui-Sen CHEN,Dan LI

表3 LAI与GF-1/2宽波段植被指数间的灰色关联度及排序

Table 3 Grey correlation degree and order between LAI and GF-1/2 broad band vegetation indices

起身期 Erecting stage 拔节期 Jointing stage 开花期 Flowering stage GF-1 VI 灰色关联度(排序) Grey correlation degree (ranking) GF-2 VI 灰色关联度(排序) Grey correlation degree (ranking) GF-1 VI 灰色关联度(排序) Grey correlation degree (ranking) GF-1 VI 灰色关联度(排序) Grey correlation degree (ranking) MSR 0.8015(1) NDVI 0.8657(1) GNDVI 0.8154(1) EVI 0.7894(1) EVI2 0.7607(2) MSR 0.8622(2) NDVI 0.8006(2) GSR 0.7737(2) OSAVI 0.7570(3) SAVI 0.8582(3) SAVI 0.7890(3) NDVI 0.7450(3) GSR 0.7211(4) DVI 0.8545(4) GSR 0.7693(4) SAVI 0.7417(4) SAVI 0.6839(5) MTVI 0.8523(5) OSAVI 0.7448(5) OSAVI 0.7417(5) NDVI 0.6687(6) RDVI 0.8508(6) EVI2 0.7440(6) GNDVI 0.7413(6) TVI 0.6590(7) VARI 0.8500(7) CIgreen 0.7434(7) EVI2 0.7376(7) VARI 0.6584(8) CIgreen 0.8495(8) WDRVI 0.7424(8) WDRVI 0.7325(8) MTVI 0.6366(9) MSR 0.8494(9) RDVI 0.7406(9) MSR 0.7235(9) CIgreen 0.6360(10) WDRVI 0.8488(10) EVI 0.7399(10) VARI 0.7195(10) WDRVI 0.6340(11) EVI2 0.8485(11) MSR 0.7366(11) RDVI 0.7176(11) DVI 0.6327(12) OSAVI 0.8483(12) MTVI 0.7318(12) MTVI 0.7175(12) EVI 0.6306(13) EVI 0.8482(13) DVI 0.7312(13) CIgreen 0.7173(13) GNDVI 0.6293(14) MNLI 0.8470(14) VARI 0.7308(14) DVI 0.7155(14) RDVI 0.6225(15) NLI 0.8305(15) MNLI 0.7172(15) NLI 0.7127(15) NLI 0.6098(16) GSR 0.8303(16) NLI 0.7169(16) MNLI 0.7126(16) MNLI 0.6096(17) TVI 0.8167(17) TVI 0.6898(17) TVI 0.6530(17)