Low-pressure pile irrigation system has been widely used and applied in crop fields in northern part of Jiangsu Province, because it can adapt to complex terrain and irrigate the land that earth canal cannot be reached. Design of pipe network has been made in line with the feature of irrigation districts. Comparison has also been conducted from the respects of irrigation system, cost and investment and operation and maintenance, in order to study the rationality of system layout.%低压管道输水灌溉是有压供水, 能适应较复杂的地形, 使土渠难以达到的灌溉地块得以实现灌溉, 在苏北地区的大田灌溉中得以较大面积的推广和应用.针对灌区的特点, 利用案例进行管网设计比较, 从而对灌溉制度、工程投资和运行管理方面进行分析, 探讨系统布置的合理性.
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