打坝淤地是沟壑治理的主要措施之一。各地实践证明,它具有显著的拦泥增产和控制水土流失的作用,但也存在易水毁和投工投资较多等问题。如何合理布设坝系工程,提高防洪保收能力,扩大经济效益,是值得深入研究的课题。本期发表陕北有关治沟工程布局的两篇文章,供各家参考。 Dam construction is one of the main measures of gully governance. Practice in various places has proved that it has significant effects of increasing sludge production and controlling soil and water loss, but there are also problems such as easy water damage and investment in construction. How to rationally construct a dam system project, improve flood control and storage capacity, and expand economic benefits is a topic that deserves further study. In this issue, two articles about the project of trench management in northern Shaanxi are published for reference.