鄂西典型高硒区土壤和农作物硒含量特征及其影响因素研究
秦浩林, 李明龙, 郑德顺, 孙风波, 张凯

Characteristics and influencing factors of selenium content in soils and crops in typical high-selenium-content regions of western Hubei Province, China
QIN Hao-Lin, LI Ming-Long, ZHENG De-Shun, SUN Feng-Bo, ZHANG Kai
图3 成土母质与硒含量等级叠合分析
Fig.3 Composite analysis diagram of soil parent material and selenium content grade