Abstract: Liushu town is situated at the lower reach of Liaohe Rlver and was seriously affected by salt and flooding calamities,After the shifting from upland to paddy soil cultivation,the salt content of soil haa been greatly reduced by leaching of irrigation water.Sampling analysis indicates that 5450kg· ha^-1 of salt is discharged from surface soil annually, which will reduce the salt content of saline meadow soil by 0.1─0.2% within 2─4 years. Salt composition is also changed from NaCl type to sulphate mixed type. The cl and Na content has been greatly reduced.and soil properties have been improved,which provide a reliable garantee for the progressively high and stable yield of crops.

Key words: soil type, genotype,  Arachis hypogaea, kernel, cadmium, accumulation.