On the basis of investigated data of Wangmaogou watershed check dams system, the benefits of flood trapping and sediment blocking, increasing land productivity, eco-environment, society are analyzed.

• 根据王茂沟流域淤地坝坝系的调查资料，分析了王茂沟流域坝系的蓄洪拦泥、增产、生态、社会效益。