干旱区生态环境知识资源中心(Arid): 基于调控适宜性区域评价的红崖山灌区地下水位动态预测

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	基于调控适宜性区域评价的红崖山灌区地下水位动态预测
其他题名	Groundwater dynamic forecasting in Hongyashan district based on regional evaluation of regulatory suitability
	贺向丽 1; 叶懋 2; 张昕 1; 陈文捷 1; 李敬军 1
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2018
卷号	34 期号:18 页码:179-186
中文摘要	红崖山灌区位于中国典型干旱内陆区石羊河流域下游,当地地下水的过度开采已引起地下水位持续下降、生态环境严重恶化。20062010年期间,红崖山灌区实施了关井压田等相关治理措施,并于2010年开始对青土湖进行生态泄水,用水环境随之发生变化。该文运用GIS技术和FEFLOW软件,基于20112012年观测数据构建了红崖山灌区潜水三维数值模型;基于井群调控原则,对研究区进行调控适宜性区域评价,在此基础上以地下水开采量为基准设置了若干调控方案;利用构建的地下水数值模型对现状条件和各种调控方案下20 a内地下水动态变化进行了预测。结果表明:现状用水条件下,当地地下水位依然整体以低降幅持续下降,地下水降落漏斗进一步扩大;水量的削减能让地下水位下降趋势得到有效的遏制并修复地下水降落漏斗;依据评价值大小确定限釆比例的方案比全区域均匀比例限采方案能更有针对性地回升地下水位、修复地下水降落漏斗,且调控井数更少。
英文摘要	Hongyashan district is located at the lower reach of Shiyang river basin which is a typical arid inland region in China. The overexploitation of groundwater has caused continuous decline of groundwater levels and serious deterioration of ecological condition. The government has taken some measures such as closing wells, and reducing fields during the period from 2006 to 2010. Moreover, additional water has been arranged to pour into Qingtu Lake for improving its ecological condition since 2010. Then the water environment has been changed. Three-dimensional numerical model including unconfined aquifer for Hongyashan district was established using FEFLOW and ArcGIS software based on the measured data during 2011-2012 in this paper. On the other hand, considering the current situation of the local groundwater level and the layout of well group, the regulation principles of well group were made. In order to make the regulation measures more targeted, the regional evaluation of regulatory suitability was carried out by selecting the groundwater depth and the density of wells as evaluation indices. Then the study area was divided into 1934 evaluation units according to the variability of impact factors, and the weights of evaluation indices and the comprehensive evaluation values of evaluation units were calculated by using entropy method. Three regulation schemes of B1, B2 and B3 were set by cutting the volumes of groundwater exploitation. Among them, B1 and B2 were the schemes which determined the cutting ratios of groundwater exploitation depending on the comprehensive evaluation values, and the higher the comprehensive evaluation values of the units, the higher the cutting ratio of groundwater exploitation. B2 covered more units and more wells than B1. B3 was the scheme with uniform cutting ratios in all units, which covered all wells. The dynamic variation of groundwater in the 20 years was forecasted under current condition (A1) and 3 regulation schemes (B1, B2, B3) by using the three-dimensional numerical model of Hongyashan district established in this paper. The forecasting results indicate that the groundwater levels will be in a continuous decline trend with a small drop rate and the groundwater depression cones will be further enlarged under current conditions (A1) in Hongyashan district; the decline trend of groundwater levels will be effectively contained and the groundwater depression cones can be repaired by cutting the volumes of groundwater exploitation under the 3 regulation schemes (B1, B2, B3); the schemes (B1, B2) which determined the cutting ratios depending on the evaluation values were more targeted for increasing groundwater levels and repairing groundwater depression cones than the scheme (B3) with uniform cutting ratios, and the former 2 schemes regulate less wells. The research results can provide references for the development, utilization and management of local groundwater resources.
中文关键词	地下水 ; 模型 ; 预测 ; 区域评价 ; 井群调控 ; 地下水降落漏斗
英文关键词	FEFLOW groundwater models forecasting regional evaluation regulation of well group groundwater depression cones FEFLOW
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:6334721
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237992
作者单位	1.中国农业大学水利与土木工程学院, 北京 100083, 中国; 2.重庆市江津区西湖镇人民政府, 重庆 402224, 中国
推荐引用方式 GB/T 7714	贺向丽,叶懋,张昕,等. 基于调控适宜性区域评价的红崖山灌区地下水位动态预测[J]. 中国农业大学,2018,34(18):179-186.
APA	贺向丽,叶懋,张昕,陈文捷,&李敬军.(2018).基于调控适宜性区域评价的红崖山灌区地下水位动态预测.农业工程学报,34(18),179-186.
MLA	贺向丽,et al."基于调控适宜性区域评价的红崖山灌区地下水位动态预测".农业工程学报 34.18(2018):179-186.