Distribution of Selenium in Corn and Its Relationship withSoil Selenium in Yutangba Mini-landscape
渔塘坝微地域中玉米硒的分布及其与土壤硒的关系

Within the range of 001km2 minilandscape in Yutangba,Enshi,Hubei province,Se content in corn is very highThe average Se contents in root,stem,leaf,seed of corn are 436327mg/kg,308224mg/kg,974762mg/kg,807502mg/kg,respectivelyThe research results show that there is a significantly positive relationship between in selenium corn and soil,and the distribution of Se level in corn in Yutangba can be divided into three subregionsSe contents in soil almost control that in corn,and the tiny change of the former can lead to the considerable change of the latterAccording to it,these organs with relatively higher Se in plants may be used as a sensitive selenium indicator of Se levels in environment