College of Resource and Environmental Sciences;
Nanjing Agricultural University;
Nanjing 210095 (China);
Resource and Environmental Science Data Center;
Chinese Academy of Sciences;
Beijing 100101 (China);
Key Laboratory of Resources Remote Sensing & Digital Agriculture;
Ministry of Agriculture;
Beijing 100081;
Department of Botany Panjab University;
Chandigarh-160014 (India);
Key Laboratory of Geographic Information Science for Ministry of Education;
East China Normal University;
Shanghai 200062 (China);
农业土壤; 反射光谱; 铜污染; 偏最小二乘回归; 土壤重金属含量; 数据预处理; 光谱反射率; Devices;