Distribution of Soil Available Copper in Small Typical Watershed of Danjiang River
[Objective] Distribution characteristics of soil available copper under different depths,land use patterns and topography factors at Danjiang River basin were studied for watershed land management.[Methods] Spatial analysis method of geostatistics was used to analyze the basin field data.[Results](1) The mean value of soil available copper content was 0.743 ms/ks and decreased with the soil depth in whole research area.(2) The value of soil available copper content was comparatively in an overall low level,ranged from 0.289～2.043 mg/kg for all land use patterns.(3) Soil available copper content had negative correlation with elevation,no obvious correlation was found with slope gradient.[Conclusion] It is structural factors that led to the strong spatial dependence of soil available copper,and human activity,like fertilization,cultivation and planting,etc,was the stochastic factor.Both of them make the soil available copper content distributed in a zonal pattern.
soil available copperland uselandformsmall watershedDanjiang River
国家科技期刊平台
NSTL
万方数据
维普
