四川雷波县重点耕地区土壤硒含量特征及其成因分析
时章亮, 金立新, 廖超, 包雨函, 刘晓波, 邓欢, 徐克全

Content characteristics and genesis of soil selenium in important cultivated areas of Leibo County, Sichuan Province
SHI Zhang-Liang, JIN Li-Xin, LIAO Chao, BAO Yu-Han, LIU Xiao-Bo, DENG Huan, XU Ke-Quan
图6 研究区主要富硒地层分布
Fig.6 The distribution of main selenium-rich strata in the study area