介绍了保水型土工袋的基本构造、基本原理及应用前景。通过三种单因素现场试验以及SPSS正交试验设计法研究了影响保水型土工袋在土壤中保水性能的三个因素：材料透水性差值、填埋深度及内部填充物。结果表明，三者对保水型土工袋的保水性能影响均达到高度显著水平（Sig<0.05），且三者的交互作用不显著。另外对保水型土工袋保水效果的影响程度：材料透水性差值>内部填充物类型>填埋深度。当保水型土工袋以底侧土工膜布类型为LDPE膜，内部填充物类型为陶粒，填埋深度为25cm的方案填埋在植被下侧时保水效果最为显著，一个月后土壤含水率增加16.5%，后续时间也稳定在10%左右。%This paper introduces the basic structure, mechanism and prospective applications of water-holding soilbags. The factors that influence the water-retention performance of water-holding soilbags in the soil are studied through on-site tests by the method of SPSS orthogonal experiment design. The result shows that the water-saving performance of soilbags is highly influenced by water permeability of different materials, buried depth and infilling (Sig<0.05), and the interaction of the three is not obvious. The influencing significance of the three factors: material permeability difference>buried depth>infilling. Water-holding soilbags have the best water-saving performance when the bottom coating of soilbags is LDPE, the infilling is ceramsite and the buried depth is 25 cm under vegetation. The water-holding effect reaches 16.5%a month later.
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