通过对土壤质地分析表明，延边地区大部分苹果梨园土壤为壤质粘土。
The analysis on the texture of soil indicated the mostly Apple-pear orchards' soil of yanbian area was clay.
首先，用批量平衡法开展了镉在砂质壤土、壤质砂土和粉壤土中的吸附特性的试验研究，获得吸附常数；
First, to characterize the adsorption property of cadmium, cadmium adsorption isotherms in soils were determined by the batch experiment, and the adsorption parameters were obtained;
轻壤质土壤中碱性酸酶活性低于轻粘质土壤中的酶活性。贫磷土壤中磷酸酶活性高于富磷土壤中磷酸酶的活性。
The alkaline phosphatase activity in light clayey soil is higher than that in light loamy soil, also is higher in poor-phosphate soil than in rich-phosphate soil.
对不同质地土壤有机质含量与表层含盐量进行相关分析表明，表层为轻壤时，土壤有机质含量与表层含盐量具有明显的负相关性。
The correlative analysis between organic matter content and salinity of the surface layer showed significant negative correlation in soils with coarse texture; but not as significant in other cases.
对不同质地土壤有机质含量与表层含盐量进行相关分析表明，表层为轻壤时，土壤有机质含量与表层含盐量具有明显的负相关性。
The correlative analysis between organic matter content and salinity of the surface layer showed significant negative correlation in soils with coarse texture; but not as significant in other cases.
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