| 城市化对地下水流系统的影响 |
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| 引用本文： | 于开宁,MorrisBL.城市化对地下水流系统的影响[J].华北地质矿产杂志,1999(2). |
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| 作者姓名： | 于开宁 MorrisBL |
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| 作者单位： | 石家庄经济学院!石家庄，0500310，BritishGeologicalSurvey!OX108BBWallingford |
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| 摘 要： | 随着世界经济的飞速发展和人口增长，城市的规模和数量也在急剧增加，城市化的趋势变得日益明显，尤其在发展中国家。在这一过程中，地下水所扮演的角色越来越重要，揭示城市化与地下水各方面之间的相互影响规律以实现其可持续发展，成为一个全球性的重要研究课题。本文在分析世界城市人口增长规律和地下水对城市供水的重要性基础上；以三个典型示范城市为例，进一步具体探讨了城市化对地下水补给与地下水流系统的影响。最后认为，城市化会引起地下水补给量的增加；但城市大规模和经常性毫无节制地开采地下水可产生明显的地下水位下降、地面沉降和盐水入侵而导致地下水流系统的剧烈改变。
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| 关 键 词： | 城市化 发展中国家 地下水流系统 城市补给增加 |
The Impact of Urbansisation on Groundwater Flow Systems |
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| Authors: | YU Kaining |
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| Abstract: | Because of world economic development and population growth, urbanisation has been rapid with a constant increase in the scale and number of cities, particulary in developing countries. Groundwater has played a more and more important part in this course' Finding the law of interaction between urbanisation and groundwater for realizing the sustainable development, has became a significant global question for study' Based on the analysis of the increase law of the world's urban population and importance of groundwater for urban water supply, a discussion on the impact of urbanisation on groundwater recharge and flow systemis carried out in this paper, with three cities as the examples. Finally, it is emphasized that the groundwater recharge beneath cities is usually substantially greater than the pre-urban values, and the considerable and often largely uncontrolled groundwater abstraction from beneath many cities can significantly modify the groundwater flow system producing a substantial decline in water levels, and lead to salt water encroachment and contamination of groundwater. |
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| Keywords: | urbanisation developing country groundwater flow system increase ingroundwater recharge beneath city seepage |
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