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中文摘要：
通过对玛纳斯灌区和石河子灌区土壤采样分析，获得了采样点3层土壤的总盐现状数据。利用地理信息系统软件，绘制灌区不同土壤层次的盐分分布图，定量评价了灌区内土壤盐渍化程度的分布状况。研究表明，石河子灌区和玛纳斯灌区土壤盐分表层大于下层，说明研究区土壤还未脱离积盐趋势，而且玛纳斯灌区各层土壤总盐含量的平均值明显大于石河子灌区；盐分分布图显示两个灌区土壤总盐含量沿着玛纳斯河呈现出规律性分布，流域下游灌区土壤的总盐含量相对较高。两个灌区轻度盐渍化土地所占比例较大，石河子灌区为753．3km^2（73．2％），玛纳斯灌区为1249．5km^2（91．2％），表明研究区还普遍存在盐渍化的威胁。
英文摘要：
By analyzing soil samples from 3 layers in research area, the data of total salt content of the soil have been got. The distribution maps of soil salt content were obtained using GIS,which quantitatively assess the distribution condition of saline soil in irrigation area. The results indicated that soil total salt content of surface layer in Shihhotze and Manas irrigation area is higher than that of under layer,which show that soil in research areas are at salt accumulation stage. The average value of total salt of 3 layers in Manas irrigation area is higher than that of Shihhotze. The salt content in the two irrigation areas showed that it was regularly distributed along the Manas River. In the two irrigation areas,light salinization soil accounts for a large proportion. There are 753.3 km^2（73.2%） light salinization soil in Shihhotze irrigation area,and 1 249.5 km^2 （91.2%）in Manas,the results show that research areas are also widely at the threaten of salinization.
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