硒的土壤化学及其生物有效性

硒是重要的生命元素。高硒和低硒均会引起动物发生各种疾病，硒由土壤进入植物体，通过食物链控制着动物的硒营养状况，因此研究硒的土壤化学及其对生物的有效性对维护人类健康和牲畜生产是十分有意义的，本文拟就土壤中硒的含量、形态、有效性影响因素，硒的保健作用和调节措施等方面作一综述。

Soil Chemistry of Selenium and its Bioavailability

Selenium is a vital element. The animal will be sick with high or low level of selenium. The study on soil chemistry of selenium and its bioavailability is very important to protect human health and increase the animal products, as the animal selenium nutrition was affected by the food chain of soil-plant-animal food. The soil selenium content, form, availability, healthy effects and adjust measures were reviewed in this paper.