基于光谱指数建模的阿拉尔垦区土壤盐渍化信息提取与分析

代云豪, 管瑶, 冯春涌, 蒋敏, 贺兴宏

Extraction and analysis of soil salinization information of Alar reclamation area based on spectral index modeling

DAI Yunhao, GUAN Yao, FENG Chunyong, JIANG Min, HE Xinghong

表1 遥感光谱指数及模型

Tab.1 Remote sensing spectral index and model

光谱指数 公式① 参考文献 NDVI N D V I = N I R - R N I R + R [18] Albedo Albedo=0.356B+0.130R+0.373NIR+0.085SWIR1+0.072SWIR2-0.0018 [20] MSAVI M S A V I = ( 2 N I R + 1 ) - ( 2 N I R - 1 ) 2 - 8 ( N I R - R ) 2 [20] SI S I = B · R [18] SDI1模型(SI-NDVI) SDI1= ( N D V I - 1 ) 2 + S I 2 [18] SDI2模型(SI-MSAVI) SDI2= ( M S A V I - 1 ) 2 + S I 2 [19] SDI3模型(SI-Albedo) SDI3= A l b e d o 2 + S I 2 [28] SDI4模型(Albedo-MSAVI) SDI4= ( 1 - A l b e d o ) 2 + M S A V I 2 [20???????][28]