CHEN Sheng-hua, WANG Shi-jie, YANG Tao, et al. Chemical Characteristics of Soil Percolating Water and Influencing Factors in Karst Stony Desertification Area[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 26-31.
CHEN Sheng-hua, WANG Shi-jie, YANG Tao, et al. Chemical Characteristics of Soil Percolating Water and Influencing Factors in Karst Stony Desertification Area[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 26-31.DOI:
A systematically monitoring has been carried of soil percolating water in karst stony desertification area.The result showed that higher the degree of stony desertification is
the higher the concentrations of HCO-3
Ca2+ and the value of calcite saturation index(SIC) in the percolating water from rendzina area are.The concentrations of Mg2+ in water samples from yellow soil area showed the same trend.It maybe result from related soil and vegetation degradation.When vegetation degradation starts earlier than soil
the concentrations of HCO-3
Ca2+ will decrease with the development of stony desertification due to the stronger reactions between water and soil.On the contrary
when soil degradation starts earlier than vegetation
the concentrations of HCO-3
Ca2+ will increase with the development of stony desertification due to more time requirement for reactions between water and soil.