文档介绍：太湖流域农业节水减污实地试验研究摘要:目前太湖流域平原河网地区水稻田的灌溉以淹灌为主,该灌溉方式存在用水效率低、稻田排水量大、化肥流失多、面源污染重等缺点。为加强太湖流域农业用水管理,发展节水灌溉,改善农田生态环境,太湖流域管理局组织开展了平原河网地区实地水稻田节水试验,对稻田用水量、排水氮磷流失情况进行了监测和分析。结果表明,水稻田采用节水灌溉技术既可保证产量,又可在湿地以及生态沟道的协同运行下,有效降低稻田排水中的氮、磷营养物质含量。关键词:农业用水;节水减污;实地试验;太湖流域中图法分类号: X52 文献标志码:A文章编号: 1001-4179(2013) 03-0081-04 Field test and research on agricultural water-saving irrigation and pollution reduction in Taihu Lake Basin JIA Genghua1 , YAN Zhijun2 , WANG Yuanyuan1 , ZHU Fawen1 Abstract: At present , flood irrigation is mainly adopted in the plain work area of Taihu Lake Basin resulting in low water use efficiency , large water drainage and fertilizer loss , severe non-point pollution . In order to strengthen the management of agricultural water use , develop the water-saving irrigation , and improve the ecological environment of agricultural field , Taihu Lake Basin Authority carried out rice-field water-saving test in the plain work area to monitor and analyze the water use amount and N and P loss during the drainage process . The results show that water-saving irrigation for rice-field can not only guarantee the rice yield , but also reduce N and P in the drainage with the cooperation of wetland and ecological ditches . Key words: agricultural water use; water-saving and pollution reduction; field test; Taihu Lake Basin 根据《太湖流域水资源综合规划》调查数据, 2008 年太湖流域总用水量为 345 .6亿 m3,其中农业用水量为 m3,占总用水量的 21.