SPATIAL DISTRIBUTION CHARACTERISTICS OF LAND QUALITY GEOCHEMISTRY IN SHIDIAN,YUNNAN PROVINCE
Based on the results of 1∶50000 land quality geochemical survey and evaluation in Shidian County,Yunnan Province,analyses were conducted on the soil pH,soil nutrients,soil environmental quality,soil quality,land quality and the classification standards and spatial distribution characteristics of general selenium-rich soil.General selenium-rich land resources(with an average Se value of 0.5mg/kg)were delineated in the survey area,covering an area of 233.32km2,laying the foundation for the development of selenium-rich characteristic agriculture.
Classification StandardsSpatial Distribution CharacteristicsGeneral Selenium-Rich LandShidian,Yunnan