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3 阿拉尔垦区土壤盐渍化分类

Tab.3 Classification of soil salinization in Alar reclamation area

模型 非盐渍土 轻度盐渍土 中度盐渍土 重度盐渍土 盐土 SDI1 <0.27 [0.27,0.46) [0.46,0.67) [0.67,0.85) ≥0.85 SDI2 <0.21 [0.27,0.40) [0.46,0.62) [0.62,0.80) ≥0.80 SDI3 <0.13 [0.13,0.18) [0.18,0.24) [0.24,0.30) ≥0.30 SDI4 >1.09 [0.97,1.09) [0.85,0.97) [0.74,0.85) ≤0.74