| CPSP模型在华北井灌区农业水管理中的应用 |
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| 引用本文： | 彭致功,;刘钰,;许迪,;王蕾,;张宝忠.CPSP模型在华北井灌区农业水管理中的应用[J].排灌机械,2014(6):523-528. |
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| 作者姓名： | 彭致功 ;刘钰 ;许迪 ;王蕾 ;张宝忠 |
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| 作者单位： | [1]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038; [2]国家节水灌溉北京工程技术研究中心,北京100048 |
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| 基金项目： | 国家科技支撑计划项目（2012BAD08B02）; 中国水利水电科学研究院院专项（节集1305、节集1356）; 农业部作物需水与调控重点开放实验室基金资助项目（CWRR201004） |
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| 摘 要： | 为研究不同农业水管理措施对区域水平衡的影响,选择北京市大兴区为华北井灌区代表性研究区,以CPsP模型为技术支持,研究了提高灌溉水利用率、采用亏缺灌溉、改善农业种植结构及利用区外水源等不同水管理措施影响下区域水平衡、区域耗水、区域取水及用水指标的变化规律.结果表明,在资源型缺水区域,提高灌溉水利用率、采用非充分灌溉及改善农业种植结构在一定程度上能缓解区域水资源紧缺的压力,特别是采用非充分灌溉及改善作物种植结构能显著减少区域取水及耗水总量,并能减少地表水及地下水的补给量中回归水所占比例,在缓解区域水资源紧缺压力的同时也降低了区域水质遭受回归水污染风险.另外,在未来情景中,因经济快速发展及人口持续增长,工业及居民生活用水量增加,区域水资源供需矛盾将会加剧,为确保区域水资源良性循环,势必采取积极有效的水资源管理模式.
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| 关 键 词： | 区域水平衡 水管理措施 用水指标 农业耗水 取水量 |
Application of CPSP model to agricultural water management in well irrigation region in North China |
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| Institution: | Peng Zhigong , Liu Yu, Xu Di, Wang Lei, Zhang Baozhong ( 1. State Key Laboratory of Simulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research Beijing 100038, China; 2. National Center of Efficient Irrigation Engineering and Technology Research - Beijing, Beijing 100048 China) |
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| Abstract: | In order to study the variation of the regional water use and the water consumption under different water resources management measures,the CPSP model was selected as the regional water balance analysis tool in Beijing Daxing county.The regional water resources consumption,the regional water withdrawals and the water situation indicators were analyzed under different water management measures such as high water use efficiency,deficit irrigation,good crop structure and water resources importation,et al.The results show that,for water shortage region,the pressure of water resources shortage could be alleviated under different water management measures,such as high water use efficiency,deficit irrigation and improved crop structure.Especially,the quality of water withdrawals and water consumption could be decreased apparently under the deficit irrigation and the improved crop structure.Meanwhile,the proportion of surface water resources and groundwater resources recharge from returned water would be reduced.In a word,once the effective water resources management measures are put into use,it would be benefited to ease the pressure of the regional water shortage and reduce the risk of being polluted by the returned water.In addition,with the rapid economic development and the continuous population growth,the water use quantity will be increased sharply,which would cause the worse contradiction between supply and demand of water resource.To assure the virtuous cycle of water resources,the effective water resources management measures should be put into use such as high water use efficiency,good crop structure and water resources importation et al. |
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| Keywords: | regional water balance water resources management measures water situation indicators agricultural water consumption water withdrawals |
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