The content of salt and alkali in soil in Hexi region was high.
河西地区土壤盐碱含量高，一般草坪草种不易成坪。
Soil degradation in this region mainly expressed decrease of nutrition element and increase of salt and alkali.
该地区的土壤退化主要表现为营养成分的减少，有害的盐碱成份的增加。
Based on the abroad collected data and study of soil sampling, the rule of water -salt movement in Songnen Plain and the process of soil Saline -alkali were analyzed fully.
在广泛搜集资料和实地土壤采样调查的基础上，系统分析人为干扰下松嫩平原水盐运动规律及土壤盐渍化过程。
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