基于新型植被指数的冬小麦LAI高光谱反演

束美艳, 顾晓鹤, 孙林, 朱金山, 杨贵军, 王延仓, 张丽妍

High Spectral Inversion of Winter Wheat LAI Based on New Vegetation Index

MeiYan SHU, XiaoHe GU, Lin SUN, JinShan ZHU, GuiJun YANG, YanCang WANG, LiYan ZHANG

表2 基于植被指数的LAI反演模型对比分析

Table 2 Comparison and analysis of LAI inversion models based on vegetation index

参数 Parameter	模型 Model	R²	RMSE
NDVI	y = 0.1053e^4.3133^x	0.78	1.216
RVI	y = 1.3344e^0.0601^x	0.59	1.754
DVI	y = 0.296e^7.4489^x	0.67	1.429
SAVI	y = 0.1901e^5.3888^x	0.71	1.31
PRI	y = 5.0448e^-21.59^x	0.66	1.433
NVI	y = 1.7431e^0.2685^x	0.49	1.905
NPCI	y = 6.235e^4.2439^x	0.56	1.464
NDRE	y = 0.3073e^5.6259^x	0.73	1.365
RRWVI	y = 0.1614e^8.0405^x	0.83	1.038