Spatial distribution and potential ecological risk of Cd, Pb, As in Jilin black soil;

Effects of added concentrations of Cd and Pb on the distribution of Cd and Pb forms in black soil of northeast China and on the Cd and Pb uptake by cole;

The cause of black soil ecological system frangibility and its rehabilitate;

Joint effects of acetochlor and Cu~(2+) on indigenous bacterial communities in phaeozem;

Effect of various fertilization on the organo-mineral complexation and the combined forms of humus of phaeozem;

Effect of Nature Rainfall on N Nutrient and Fertility in Phaeozem Surface;

Effect of Different Concentration of Acetochlor on the Maize Seedling Growth in the Agricultural Mollisol;

Characteristics of bacterial community in an arable mollisol under long-term phosphorus fertilization;

Distribution of Labile Soil Organic Carbon and Nitrogen in Mollisol in Northeast China;

Study on soil erosion and deposition of black soils on a sloping cultivated land using ~(137)Cs tracer method;

Evaluation of soil ecological environment quality of typical black soils in Heilongjiang Province

This research selected 10 representative cultivated horizon of black soils from Jilin province.

Dynamic changes in the activity of urease and CAT in phaiozem-wheat systems under the stress of Cd and chlorimuron-ethyl;

Systematic investigations were carried out into the sources of heavy metal pollution in phaiozem throughout twenty two counties/cities in northeast China.

The relationship between the effective application of Zn fertilizer and the yield of maize grown in was studied through pot and field experiments in phaiozem and chernozem in Songnen Plain.

Research on the measure to water and soil erosion prevention in black earth area;