银南灌区控制排水实施效果分析  

Implementation effect analysis of controlled drainage in Yinnan Irrigation District

作　　者：刘建刚[1] 罗纨[2] 贾忠华[2] 

机构地区：[1]中国水利水电科学研究院水资源所,北京100044 [2]西安理工大学水资源所,陕西西安710048

出　　处：《水利水电科技进展》2009年第1期40-43,56,共5页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(50709043);国家重点基础研究发展计划(973项目)(2006CB403406)

摘　　要：阐述控制排水的定义、作用、适用条件和运行管理要求,以宁夏银南灌区为研究对象,对该灌区水稻田的控制排水试验资料进行分析,试验结果表明:控制排水可以较常规排水抬高地下水位1.8 cm,有效减少50%左右的总排水量和46%左右的地下排水量,在满足水盐平衡的同时,减少了硝氮的排放量,不会对环境造成危害。控制排水在许多国家的应用也取得了很好的效果,所以控制排水技术值得大面积推广。The definition, effects, applicable conditions and operation management requirements of controlled drainage are described. Using a rice paddy in the Yinnan Irrigation District as the research object, the drainage experiment data axe analyzed. The results show that controlled drainage causes a water table rise of 1.8 cm, the total drainage reduced by 50%, and the groundwater drainage reduced by 46%. This allows a salt-water balance. Also the nitrate nitrogen emission is reduced, preventing harm to the environment. The application of controlled drainage has obvious benefits in many countries, and is worth popularizing on a large scale.

关 键 词：银南灌区 控制排水 水盐平衡 环境保护 效果分析 

分 类 号：S276.1[农业科学—农业水土工程] TV213.4[农业科学—农业工程]