基于水环境保护的农田排水研究新进展

本文从控制排水、灌溉-排水-湿地系统、排水再利用、农田非点源污染控制四个方面总结了国内外在减缓农田水环境污染方面的农田排水研究新进展，介绍了控制排水等各项研究的技术方法、减轻化学物质流失的效果及影响因素，提出控制水位对农田化学物质流失的影响及对提高农田水分利用效率的作用、适应于农田排水的人工湿地系统及处理效果、排水再利用的灌溉模式及相应的控制结构形式、农田非点源污染的综合调控措施等应成为今后减少农田排水对水环境产生负面影响的主要研究内容。

New development of farmland drainage based on water environment protection

This paper reviews the new development of farmland drainage in protecting water environment from controlled drainage, irrigation-drainage-wetland, drainage reuse and agricultural non-point source pollution controlling, and introduces the study methods, the impacts of every technique on alleviating nutrient losses. To reducing the negative influence of farmland drainage on water environment, it is pointed out that the impacts of controlled water level on farmland nutrient losses and water use efficiency, artificial wetland and its function suitable for farmland drainage, irrigation pattern of drainage reuse and controlling structure mode, comprehensive measures in controlling agricultural non-point source pollution will be main tasks of further research in the future.