可见-近红外光谱的滨海土壤“除水”盐分估测

杨晗, 曹见飞^*, 王召海^*, 吴泉源

Study on Soil Salinity Estimation Method of “Moisture Resistance” Using Visible-Near Infrared Spectroscopy in Coastal Region

YANG Han, CAO Jian-fei^*, WANG Zhao-hai^*, WU Quan-yuan

在(a) PLSR; (b) PDS-PLSR; (c) OSC-PLSR模型中的变量投影重要性(VIP)以及土壤光谱与盐分之间的Spearman相关系数曲线(a)一阶导光谱数; 基于一阶导数光谱的(b) PDS转换和(c) OSC滤波