我国水利学研究主要进展

一、水资源研究 我国天然降水时空分布不均,年际变化大,年内分配集中,连丰期和连枯期时有发生。这些特点是造成我国水土资源不平衡和旱涝灾害频繁发生的基本原因。几十年来,我国在水资源评价、水资源配置、水环境保护、水法规建设和水管理等方面取得了长足进展。通过工程和非工程措施,协调水与社会、经济、

Main Achievements of Water Resources Studies in China

The main achievements made in water resources studies in China are as follows. In terms of water resources, a multi -layer and multi -purpose decision support system (DSS) is applied in national water resources programming, national medium and long-term plan for water supply, which enhancing predictability for a sustainable use of water resources. In terms of environmental hydraulics, studies are made on ecological environment conservation, environment protection of water projects and water environment. In terms of researches in evolution of river course and silt movement, there are breakthroughs in the respects of starting of cohesive soil, movement of high -sand -content water flow, density flow and mud -rock flow. In terms of hydraulics of high-lift lock, problems with vibration of flow tide of valve and cavitations of water distribution system are being solved. In terms of study on energy dissipation of high -speed water flow and erosion protection, many kinds of energy dissipaters are being developed in combine with the actual situation of the projects.