Taking an example of karst soils from Guanling-Zhengfeng area, southwestern Guizhou, China, changes of soil total and available pool of major nutrients, microbial biomass carbon and soil respiration, activities of major soil enzymes in a degradation-reclamation sequence were studied.

Kinetics of hydrogeochemistry in assimilated soil-limestone karst system and its implications;

Colorimetric determination of dissolved organic carbon in soil solution and water environment.;

Dissolved organic carbon in soil solution of paludalfs udalfs in Mt. Lushan forest under impact of acid deposition;

Changes of nitrogen and phosphorus in soil solutions from the soil in Taihu Lake region during wheat growth;

Ascertainment of configuration of inorganic monomeric aluminum species in soil solutions by fluoride electrode procedure;

The reliability of fluoride electrode direct potentiometry for characterization of inorganic monomeric aluminum in Al-F system was verified and the feasibility of this method used for soil solutions was studied.

According to the research results for the interacting depth of rainfallrunoffsoil solute at home and abroad,the various methods for calculation of the interacting depth were compared based on the experimental data in laboratory.

The physical processes of soil solute transfer with runoff and their features were analyzed based on the summation of research results at home and abroad.