%0 Journal Article %A Yin Zhaohan %A Ju Shanjian %A Ma Xiaoli %A Chui Jianbo %T Biogeochemistry and Ecological Effect of Selenium %D 1989 %R %J Chinese Journal of Ecology %P 45-50 %V %N 4 %X The biogeochemistry and ecological effects of selellium are receiving inereasing attention from people.The hypergene process forms different valences of selenium,and the different valence states and contents of Se in plant,animal and human bodies lead to its different ecological effects.This paper systematically discusses the biogeochemical behaviors and different ecological effects of selenium. %U http://www.cje.net.cn/EN/abstract/article_18184.shtml