| 地下水位对河套灌区生态环境的影响 |
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| 引用本文： | 高鸿永,伍靖伟,段小亮,徐胜利,陈爱萍,姜文英,刘辉.地下水位对河套灌区生态环境的影响[J].干旱区资源与环境,2008,22(4):134-138. |
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| 作者姓名： | 高鸿永 伍靖伟 段小亮 徐胜利 陈爱萍 姜文英 刘辉 |
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| 作者单位： | 1. 内蒙古河套灌区义长灌域管理局,五原,015100
2. 水资源与水电工程科学国家重点实验室,武汉大学,武汉,430072 |
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| 摘 要： | 随着我国大型灌区节水改造工程的实施,河套灌区年引水量将由年均引水量的50多亿m3逐渐减少到2010年的40亿m3。由于引黄水量的减少,地下水位开始下降,土壤表层盐份相随减少,灌区生态环境得到改善。但地下水位继续下降将会对灌区生态环境产生什么样的效应?本文通过实地调查和参考本地区过去及其它地区的实验资料,对灌区年灌溉引水量及地下水位变化做了分析,并对其产生的生态环境效应进行了讨论。建议灌区年引水量保持现有水平;在小区域抓紧试验观察地下水位进一步降低带来的影响;利用灌溉间息水补充生态水,避免地下水位进一步降低,以保持或进一步改善生态环境。
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| 关 键 词： | 地下水位 生态效应 |
| 文章编号： | 1003-7578（2008）04-134-05 |
| 收稿时间： | 2007-12-10 |
| 修稿时间： | 2007年12月10 |
The Impact of Water-table on The Ecological Environment of HeTao Irrigation Area |
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| GAO Hong-yong,WU Jing-wei,DUAN Xiao-Liang,XU Sheng-Li,CHEN Ai-ping,JIANG Wen-ying,LIU Hui.The Impact of Water-table on The Ecological Environment of HeTao Irrigation Area[J].Journal of Arid Land Resources and Environment,2008,22(4):134-138. |
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| Authors: | GAO Hong-yong WU Jing-wei DUAN Xiao-Liang XU Sheng-Li CHEN Ai-ping JIANG Wen-ying LIU Hui |
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| Abstract: | With the implementation of China's large-scale water-saving transformation project in the irrigation areas,the average annual amount of water diverted into Hetao irrigation area will he gradually reduced from 5.2×108m3to 4×108m3 by 2010.As a result,the ground water will decline,which will lead to the ecological improvement of environment since the amount of salt of surface soil decreases.But what if the water-table continues to drop? Thus,through field study and references to the related experimental data the consequent effects was analyzed.Suggestions were given on the improvement of the ecological environment: the average annual amount of water diverted should maintain current level;Small-scale experiments should be done and special attention should be paid on the impact of continuous drop of water-table;Ecological water should be supplemented to maintain or further improve the ecological environment. |
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| Keywords: | water-table ecological effects |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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