基于植被指数的若尔盖高原湿地光合有效辐射吸收比例估算研究

袁艺溶,王继燕,杨嘉葳,熊俊楠

Research on FPAR Estimation of Wetland in Zoige Plateau based on Vegetation Index

Yirong Yuan,Jiyan Wang,Jiawei Yang,Junnan Xiong

表2 基于常见植被指数的FPAR模型

Table 2 FPAR estimation model based on common vegetation indexes

植被指数 估算模型 R2 RMSE MAD/‰ RMD/‰ DVI FPAR= 0.00002VIDVI+0.398 0.610 0.050 4.23 7.51 RVI FPAR=0.2146VIRVI+0.161 0.678 0.045 4.96 8.65 NDVI FPAR=0.8911VINDVI+0.298 0.764 0.037 4.03 7.04 EVI FPAR=0.6597VIEVI+0.3575 0.697 0.043 5.13 8.95 MVI FPAR=1.5667VIMVI-0.8343 0.783 0.036 3.86 6.74 MNDVI FPAR=0.8179VIMNDVI+0.594 0.743 0.039 4.35 7.60 SASR FPAR=0.2146VISASR+0.161 0.678 0.045 4.95 8.64 SAVI FPAR=0.5941VISAVI+0.298 0.763 0.037 4.05 7.08 OSAVI FPAR=0.8911VIOSAVI+0.295 0.761 0.037 4.08 7.12 MSAVI FPAR=0.7134VIMSAVI+0.2401 0.804 0.033 3.55 6.21 SRWI FPAR=0.3878VISRWI+0.094 0.293 0.069 6.69 11.64 NDWI FPAR=-0.903VINDWI+0.3065 0.757 0.038 4.68 8.17 MNDWI FPAR=-1.0044VIMNDWI+0.374 0.572 0.051 5.78 9.61 NDMI FPAR=1.0152VINDMI+0.4684 0.313 0.068 6.33 11.02