Profiles of six important types of soil,representing about 70% of the cultivated soil areain Shenxian,were collected to study the status and availability of selenium and its implica-tions for some Se deficiency related diseases in animals in this region.Total Se content in this region varied greatly from soil to soil.However,the total Se con-tent of soils from white muscular disease area is generally lower than the critical value(Se100 to 150 μg/kg)found in soils from a Keshan diseaseregion in China. NaHCO_3...