华北平原地下水动态及其对不同开采量响应的计算——以河北省栾城县为例
收稿日期: 2001-06-04
修回日期: 2001-09-26
网络出版日期: 2002-03-25
基金资助
国家自然科学基金项目 (49871020, 49801003, 49890330-4-2); 河北省科委资助项目 (01220703D)
Groundwater Dynamic Drift and Response to Different Exploitation in the North China Plain: A Case Study of Luancheng County, Hebei Province
Received date: 2001-06-04
Revised date: 2001-09-26
Online published: 2002-03-25
Supported by
National Natural Science Foundation of China, No.49871020, 49801003 and 49890330-4-2; Scientific Department of Hebei Province, No. 01220703D
自从20世纪60年代大规模开采地下水以来,栾城县的地下水位以每年大约0.65 m的速度下降。降雨量的减少、农业产量的大幅度提高、种植结构的变化以及上游水利工程的修建,都与地下水位的下降有着密切联系。利用Visual Modflow软件,在分析该县水文地质条件与水资源利用的前提下,运用三维地下水流模型,通过有限差分方法对栾城县的地下水系统进行了模拟,结果表明：5个观测孔的地下水位计算值与实测值拟合程度很好,模拟出的地下水流场与实际情况基本一致。利用掌握的水文地质资料,进行参数分区,通过实测资料的校正、调参,模拟出各分区参数值。利用校正后的数学模型,对栾城县地下水对不同开采量的响应进行了计算,结果如下：在现状农业开采量1.01×108m3基础上分别减少14 % (0.14×108m3)、 29 %(0.29×108m3) 和增加29 % (0.29×108m3) 的情况下,到12月份5个观测孔的平均地下水位分别比现状地下水位上升了0.33 m,0.64 m 和下降了 0.45 m。
贾金生,刘昌明 . 华北平原地下水动态及其对不同开采量响应的计算——以河北省栾城县为例[J]. 地理学报, 2002 , 57(2) : 201 -209 . DOI: 10.11821/xb200202010
The groundwater table has been declining at a rate of 0.65 m/yr in Luancheng County since pumping groundwater on a large scale in the 1960s. The decrease of the precipitation, large increase of the agricultural output, variation of the crop growing structure and the building of the hydraulic project in the headwater area all tie up with the decline of the groundwater table. On the basis of analyzing the hydrogeological condition and the water resources utilization of Luancheng County, we build a three-dimensional groundwater flow model, and simulate the groundwater flow through finite-difference method using Visual Modflow software. We divide the research field into four parts after analyzing the hydrogeological condition. After calibrating and adjusting parameters using measured data, we simulate the parameters of hydraulic conductivity and specific yield. Using the calibrated model, this article analyzes the agricultural water saving potentiality and its influence on the groundwater. The results are as follows: (1) if we decrease the pumping water by 0.14×108 m3, the average groundwater table of five observation wells in December will rise by 0.33 m; (2) if we decrease the pumping water by 0.29×108 m3, the average groundwater table of five observation wells in December will rise by 0.64 m; (3) if we increase the pumping water for 0.29×108 m3, the average groundwater table of five observation wells in December will decline by 0.45 m. So we can draw a conclusion that controlling the agricultural water use is an important way to prevent the groundwater table's decline.
[1] Liu Changming, He Xiwu. Strategy on Water Problems of Twenty-first in China. Beijing: Science Press, 1996. 146.
[刘昌明, 何希吾. 中国21世纪水问题方略. 北京: 科学出版社, 1996. 146.]
[2] Liu Changming, Yu Jingjie, Eloise Kendy. Groundwater exploitation and its impact on the environment in the North China Plain. International Water Resources Association. Water International, 2001, 26(2): 265-272.
[3] Zhang Zhonghu, Shen Zhaoli. Evolution of Groundwater Environment in North China Plain. Beijing: Geology Press, 2000.
[张宗祜, 沈照理. 华北平原地下水环境演化. 北京: 地质出版社, 2000.]
[4] General Station of Hydrology in Hebei Province. Groundwater Evaluation Report of Hebei Province. 1990.
[河北省水文总站. 河北省地下水资源评价报告. 1990.]
[5] Chinese Academy of Sciences, Natural Resources Investigation Team of Luancheng County in Hebei Province. Report of Agricultural Natural Resources Investigation and Zonation of Luancheng County: Water Resources. 1979.
[中国科学院、河北省栾城自然资源考察队. 栾城县农业自然资源调查和农业区划报告-水力资源. 1979.]
[6] Luancheng County Water Resources Management Office. Current Investigation Report of Water Resources' Development and Use in Luancheng County, 1993.
[栾城县水政水资源综合管理办公室. 石家庄市栾城县水资源开发利用现状调查报告, 1993.]
[7] Wu Jianfeng, Zhu Xueyu. Development Trend of Groundwater Flow Simulation Software from Modflow. Geotechnical Investigation & Surveying, 2002, (2): 12-15.
[吴剑峰, 朱学愚. 由MODFLOW浅谈地下水流数值模拟软件的发展趋势. 工程勘察, 2002, (2): 12-15.]
[8] Wu Qiang, Dong Donglin et al. Visual Modflow and its application potentiality. Hydrogeology and Engineering Geology, 1999, (5): 21-23.
[武强, 董东林 等. 水资源评价的可视化专业软件(Visual Modflow)与应用潜力. 水文地质工程地质, 1999, (5): 21-23.]
[9] Wei Linhong, Su Longcang et al. Current Study Condition and Development Trend of Groundwater Flow Numerical Simulation. Journal of Chongqing University (Natural Science Edition), 2000, 23(10): 50-53.
[魏林宏, 束龙仓 等. 地下水数值模拟的研究现状和发展趋势. 重庆大学学报 (自然科学版), 2000, 23(10): 50-53.]
[10] He Shan. Application of Processing Modflow software in preventing groundwater pollution. Water Resources Conservancy, 1999, 57(3): 16-18.
[何杉. Processing Modflow软件在地下水污染防治中的应用. 水资源保护, 1999, 57(3): 16-18.]
[11] Jia Jinsheng, Liu Changming. Experimentation study on water deficit effect of summer maize. Chinese Journal of Eco- Agriculture, 2002, (1).
[贾金生, 刘昌明. 夏玉米水分胁迫效应的试验研究. 中国生态农业学报, 2002, (1).]
[12] Chorography Compilation Committee of Luancheng County in Hebei Province. Luancheng County Chorography. Beijing: Xinhua Press, 1995.
[河北省栾城县地方志编纂委员会编. 栾城县志. 北京: 新华出版社, 1995.]
[13] Shijiazhuang Bureau of Statistics. Outline of Shijiazhuang. 2001.
[石家庄市统计局. 石家庄概览. 2001.]
[14] Hebei Bureau of Statistics. Hebei Economy Yearbook. Beijing: China Statistics Press.
[河北省统计局. 河北经济年鉴. 北京: 中国统计出版社, 1984-2000.]
[15] Tang Yiqun, Ye Weimin. Groundwater Resources Generality. Shanghai: Tongji University Press, 1998.
[唐益群, 叶为民. 地下水资源概论. 上海: 同济大学出版社, 1998.]
[16] Thomas E Reilly. System and Boundary Conceptualization in Ground-water Flow Simulation: Techniques of Water-Resources Investigations of the U.S. Geological Survey Book 3, Applications of Hydraulics. 2001, B8, 1-29.
[17] McDonald M C, Harbaugh A W. A Modular Three-dimensional Finite-difference Ground-water Flow Model: U.S. Geological Survey Techniques of Water-Resources Investigations, book 6, chap. A1, 1998. 586.
[18] Waterloo Hydrogeologic Inc. User's Manual for Visual Modflow, 1999.
[19] Waterloo Hydrogeologic Inc. Visual Modflow Tutorial, 2000.
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