泥沙运动引起的环境问题及环境泥沙学

Environmental Problems Caused by Sediment Motion and Mechanics of Environmental Sediment

从两个方面，即水环境中的泥沙问题和泥沙运动引起的环境问题出发，说明了环境中泥沙问题的普遍性，指出了结合泥沙运动研究环境问题和结合环境科学研究泥沙问题的重要性和必要性，并将这方面的工作概括为“环境泥沙学”。它研究受泥沙运动影响的污染物（包括泥沙颗粒本身）在环境中的迁移转化规律、控制及其应用，其核心是将水利工程科学主要是水力学、泥沙运动力学和环境科学的某些学科，如环境化学、环境地球化学等结合起来，研究与泥沙运动有关的环境问题，并对其研究内容和方法进行了探讨。这方面工作的深入，必然推动环境科学的加快发展，在某种程度上，也将推动泥沙科学的向前发展和丰富泥沙科学的研究内容。

Sediment problems in the environment, and enviromental problems caused by sediment motion are discussed in this paper. Sediment problems in the environment are very common in nature and there exist effects of sediment motion on the environment all the time and everywhere. It is important and necessary to combine with sediment motion to study environmental problems and to use knowledges of environmental sciences to research on sediment motion. these can be integrated into a subject titled “Mechanics of Environmental Sediment”. It studies the law, control and application of pollutant (sediment particles included) transport—transformation in environment. Combining hydrotechnics, that is, mainly hydraulics and mechanics of sediment motion, and environmental sciences, such as, environmental chemistry, environmental geochemistry and hydrochemistry to study environmental problems related to sediment motion and to research on sediment motion is its key point. Its reseach contents and methods were discussed by the paper. Thorough research on these aspects will further advance environmental sciences definitely, and to some extent promote and enrich sediment research.