| 银南灌区控制排水实施效果分析 |
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| 引用本文： | 刘建刚,罗纨,贾忠华. 银南灌区控制排水实施效果分析[J]. 水利水电科技进展, 2009, 29(1): 40-43. DOI: 10.3880/j.issn.1006-7647.2009.01.011 |
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| 作者姓名： | 刘建刚 罗纨 贾忠华 |
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| 作者单位： | 中国水利水电科学研究院水资源所,北京,100044;西安理工大学水资源所,陕西,西安,710048 |
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| 基金项目： | 国家自然科学基金,国家重点基础研究发展规划(973计划) |
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| 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。
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| 关 键 词： | 银南灌区 控制排水 水盐平衡 环境保护 效果分析 |
| 修稿时间： | 2009-02-18 |
Implementation effect analysis of controlled drainage in Yinnan Irrigation District |
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| LIU Jian-gang,LUO Wan,JIA Zhong-hua. Implementation effect analysis of controlled drainage in Yinnan Irrigation District[J]. Advances in Science and Technology of Water Resources, 2009, 29(1): 40-43. DOI: 10.3880/j.issn.1006-7647.2009.01.011 |
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| Authors: | LIU Jian-gang LUO Wan JIA Zhong-hua |
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| Abstract: | 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 are 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. |
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| Keywords: | Yinnan Irrigation District controlled drainage salt-water balance environmental protection effect analysis |
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