基于MODIS数据的典型草原非光合植被覆盖度估算

柴国奇, 王静璞, 王光镇, 韩柳, 王周龙

Estimation of fractional cover of non-photosynthetic vegetation in typical steppe based on MODIS data

Guoqi CHAI, Jingpu WANG, Guangzhen WANG, Liu HAN, Zhoulong WANG

表2 NPVIs指数与fNPV之间的反演模型

Tab.2 Inversion models of non-photosynthetic vegetation index and fNPV

NPVIs指数 回归方程 R2 P DFI y=0.048 7x-0.188 3 0.57 P<0.01 SWIR32 y=-1.824 4x+1.841 3 0.50 P<0.01 NDTI y=2.808 8x+0.067 3 0.48 P<0.01 STI y=1.025 2x-0.904 8 0.46 P<0.01 NDI7 y=1.473x+0.445 8 0.42 P<0.01