| 海南琼北复式含水层系统水循环特征 |
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| 引用本文： | 郭纯青.海南琼北复式含水层系统水循环特征[J].水科学进展,2003,14(3):379-383. |
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| 作者姓名： | 郭纯青 |
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| 作者单位： | 桂林工学院资源与环境工程系, 广西, 桂林, 541004 |
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| 基金项目： | 原地质矿产部定向科研基金资助项目(直科定92-24) |
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| 摘 要： | 目前,琼北复式含水层系统(面积4300km2)的水循环方式,以垂向互补互渗为主,水平径流为辅,最大限度截取地下水入海径流量.海水与复式含水层系统发生水量交换必须同时具备两个条件:(1)存在水量交换通道;(2)有势能差(位头、压头和咸淡水密度差别产生的重力势头组成).由于琼北复式含水层系统地下水资源多年连续被开采,承压自流水位在15～20年前就已降低至海平面之下,但至今尚未发现明显的海水入侵迹象.
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| 关 键 词： | 复式含水层 水循环 现状 发展趋势 海南 |
| 文章编号： | 1001-6791(2003)03-379-05 |
| 收稿时间： | 2002-01-28 |
| 修稿时间： | 2002年1月28日 |
Water circulation compound aquifer system in Qiongbei of Hainan province |
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| GUO Chun-qing.Water circulation compound aquifer system in Qiongbei of Hainan province[J].Advances in Water Science,2003,14(3):379-383. |
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| Authors: | GUO Chun-qing |
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| Affiliation: | Department of Resources and Environmental Engineering, Guilin Institute of Technology, Guilin 541004, China |
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| Abstract: | At present,the main circulatory pattern of Qiongbei compound aquifer system of Hainan(area of 4300km2)is inter-supplying and inter permeating in vertical. The subsidiary circulatory pattern is runoff in horizontal,and the system inter-cepts the groundwater runof to the sea with maximum limitation. Two condit ions are demanded for the sea and the compound aquifer system to exchange water:(1)existing passage for water to be exchanged,and(2)existing potential difference(the difference of location head and pressure head and the gravity potent ial head produced by the different density of salt and fresh water)Since groundwater resources of Qiongbei compound aquifer system has been continually exploited for many years,the level of the hydraulic has already been reduced under the sea level for fifteen to twenty years ago.Up to now no obvious sign of the sea invading has been found. |
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| Keywords: | compound aquifer system water circulation recent status prospect Hainan province |
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