Waterlogged and saline-alkali-affected soils are the main restrictions for agricultural production in many regions in China. Great efforts have been expended to conduct research on how to reclaim waterlogged and saline- alkali-affected soils for sustained agricultural productivity. Long-term practices have proved that agricultural drainage can be used to reduce the incidence of waterlogging and saline-alkali soil problems, as well as reclaim waterlogged and saline-alkali-affected soils, thus enhancing and sustaining agricultural productivity and national economic development. This paper describes the importance of agricultural drainage technology in China, reviews the current status of drainage technology, summarizing existing problems, and making some comparisons of drainage technologies from China and the USA. Future research needs in drainage technology for China are proposed. Copyright pb 2007 John Wiley & Sons, Ltd.
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机译：在中国许多地区，涝渍和盐碱污染的土壤是农业生产的主要限制。已经进行了巨大的努力来进行研究，以研究如何使浸水和盐碱地复垦的土壤，以实现持续的农业生产力。长期实践证明，农业排水可用于减少涝渍和盐碱土壤问题的发生率，以及减少涝渍和盐碱影响的土壤的发生，从而提高并维持农业生产力和国民经济发展。本文介绍了农业排水技术在中国的重要性，回顾了排水技术的现状，总结了存在的问题，并对中美两国的排水技术进行了比较。提出了中国排水技术的未来研究需求。版权所有pb 2007 John Wiley＆Sons，Ltd.
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