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
表2 雷波县重点耕地区富硒土壤环境质量面积分布统计
Table 2 Statistics on the area distribution of selenium-rich soil environmental quality in key cultivated areas of Leibo County
分级含义 面积/km2 面积比例/%
富硒无风险 3.89 18.49
富硒风险可控 16.52 78.48
富硒风险较高 0.64 3.03