According to the situation on back-salinity at clay interlayer in Gansu Shule River irrigation area, the improvement technology on drainage salinity through stand-hole was suggested to adopt in Shule River irrigation area.

• 摘要针对甘肃省疏勒河灌区粘土夹层土壤的阻水滞盐作用，提出了竖孔排盐改良技术。