A brief analysis of soil nutrient characteristics in Xuanzhou District,Xuancheng City,Anhui Province
Based on the geochemical survey of land quality in Xuanzhou District,Xuancheng City,the paper analyzed and studied the content status of soil bulk nutrients such as organic matter,nitrogen,phosphorus and potassium oxide in different soil-forming matrices,soil types,land use patterns,geomorphological types and other zoning units.This paper also classified the comprehensive geochemical classes of soil nutrients(organic matter,nitrogen,phosphorus and potassium oxide)in the study area.The results showed that there are obvious differences in the nutrient contents of Xuanzhou soils in different zoning units;the total area of soil nutrient class Ⅰ in the study area is 30.30 km2,accounting for 1.54%;the total area of soil class Ⅱ is 250.62 km2,accounting for 12.72%;the area of soil class Ⅲ is 1 001.64 km2,accounting for 50.86%;the area of soil nutrient class Ⅳ is 636.34 km2,accounting for 32.31%;the area of soil nutrient class Ⅴ is 50.56 km2,accounting for 2.57%.
soil nutrientsgeochemistrygeochemical gradeXuanzhou District
NETL
NSTL
万方数据
维普
