【摘要】 为了有效地解决农业面源污染控制这一世界性的难题,美国俄亥俄州立大学(OSU)将控制排水、地下灌溉系统和水塘、湿地通过地下管道和抽水泵站连接起来,形成了一种灌溉、排水、湿地净化、排水再利用的小型农田水利工程,可有效地提高水资源利用效率和控制农业面源污染。该系统主要应用于旱作区,由于投入较高,在我国可用于温室大棚;对于水稻地区,则需要研究改进。更多还原

【Abstract】 Agricultural non-point source pollution is a worldwide problem.To solve this problem,Ohio State University (OSU) in the USA combines controlled drainage,irrigation systems,and ponds and wetlands through an underground pipeline and water pump.A kind of modern small irrigation and drainage system,including irrigation,drainage,wetland purification and drainage water reuse,is formed.This system can raise the water resource efficiency and control agricultural non-point source pollution.It is mainly applied in dry crop areas.Because of its higher cost,it may be used in greenhouses in China,and needs to be improved for paddy fields.更多还原