疏勒河昌马灌区地处极度干旱的西北内陆。正在实施的“疏勒河流域农业灌溉暨移民安置综合开发”项目 (1996～ 2 0 0 5年 ) ,在昌马灌区开垦荒地 3 13× 10 4hm2 ,盐渍土占 6 5 5 %。因此 ,盐渍土的改良问题直接关系工程目标的实现。在分析昌马灌区盐渍土形成原因的基础上 ,重点探讨盐渍土的类型及分布特点 ,并提出具体的改良措施。 Changshu irrigation area Shule Le is located in arid arid northwest. The project “Comprehensive Development of Agricultural Irrigation and Resettlement in the Shule River Basin” (1996 ~ 2005) was under way. 3 13 × 10 4 hm 2 of wasteland was reclaimed in Changma Irrigation Area and 65.5% of saline soil. Therefore, the improvement of saline soil is directly related to the realization of engineering objectives. Based on the analysis of the reasons for the formation of saline soil in Changma Irrigation Area, the types and distribution characteristics of saline soil are discussed in detail, and the specific improvement measures are put forward.