干旱区生态环境知识资源中心(Arid): 黑河流域河道径流和人类活动对地下水动态的影响

Arid

	黑河流域河道径流和人类活动对地下水动态的影响
其他题名	IMPACT OF STREAM RUNOFF CHANGE AND HUMAN ACTIVITIES ON THE GROUNDWATER REGIME IN HEIHE RIVER BASIN, NORTHWEST CHINA
	姚莹莹; 刘杰; 张爱静; 李希; 田勇; 郑春苗
来源期刊	第四纪研究
ISSN	1001-7410
出版年	2014
卷号	34 期号:5 页码:973-981
中文摘要	文章概述了西北内陆干旱区黑河流域地下水系统的构成及第四纪含水层分布,在系统收集整理1986~ 2009年间黑河流域河道径流、地下水位、灌溉引水资料及补充调查成果的基础上,重点分析了径流变化和人类活动对流域地下水动态的影响。根据高程梯度、地貌类型和径流对平原地下水系统的补给作用,流域地下水动态类型可分为3个典型区:1)山前潜水含水层强入渗补给区,河道过水量控制着年地下水位变幅;2)冲积扇边缘细土平原承压含水层区,人类活动干预下的地表-地下水复杂交互过程使地下水位多年变化呈动态平衡状态;3)下游荒漠平原入渗生态补给区,政策性分水计划强烈影响地下水动态变化和空间分布。地表-地下水交互过程强烈影响地下水系统的动态平衡,且在不同区域呈现的时间尺度不同。中游绿洲农业区的人类活动通过政策性的水量再分配及土地利用空间格局变化影响地下水的循环路径及补径排条件。通过建立地表-地下水-生态水文过程耦合模型是量化动态水循环过程、合理管理地表-地下水资源的迫切需求,是未来干旱区水资源可持续利用研究的方向。
英文摘要	The Heihe River basin (HRB) is the second largest inland river basin in Northwest China, with a core area of approximately 130, 000km~2. The HRB is stretching from the Qilian Mountains in the south, going through the oases and agricultural fields in the middle stream and further extending to the Gobi desert in the north bordering (37°30’~45°20’N,96°00~104°00E). Taking the HRB as an example, this study attempts to assess the impact of stream runoff change and human activities on the groundwater regime. Based on our hydrogeological survey and previous studies, the structure of the groundwater flow system and the distribution of major aquifers are presented. The entire HRB, including the Qilian Mountains, can be divided into eight major hydrogeological zones. By statistical analyzing the dataset of stream runoff, groundwater levels, water use and irrigation during 1986 to 2009, the impacts of stream runoff change and human activities on the groundwater dynamics are assessed and quantified, respectively. According to the variations of elevation and landscape as well as characteristics of hydrogeological conditions, the impact of stream runoff on the groundwater regime in the entire HRB can be divided into three sub-region categories. The first is piedmont alluvial plain in the middle HRB where stream recharges groundwater aquifers with high hydraulic conductivities. In this area, the runoff regime controls the groundwater level change. With the increase of runoff after 2000,the groundwater level rises accordingly. The second is the edge of the alluvial fan in the middle HRB where stream and groundwater interact frequently with complex flow paths. As the complex interaction between surface water and groundwater as well as the change of the water use structure,the groundwater level represents the different trend. The third is the desert plain area in the lower HRB where stream is the major recharges of the aquifers and the evaporation is over 3000mm per year. The groundwater level is double-controlled by stream runoff and the evaporation. Human activities impact the groundwater regime through redistributing water uses from surface water and groundwater, and through changing land use that alters groundwater recharge and discharge patterns. The change of water use structure directly impact the recharge and discharge of the groundwater,while land use change impact the groundwater regime by indirectly change the water flow path in the local hydrological cycle. Moreover, the water balance of the arid inland river basin is in a dynamic state and controlled by various factors,thus regional surface water-groundwater models integrated with ecohydrological processes should be developed to quantify the major components of the hydrological cycle and system behaviors. The scenario analysis from multi-objectives management model based on the calibrated integrated physical model is the highlight research direction in arid area in the future.
中文关键词	内陆河流域黑河流域 ; 地下水系统 ; 径流 ; 人类活动
英文关键词	inland river basin Heihe River basin groundwater regime stream runoff human activities
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:5235972
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231018
作者单位	北京大学水资源研究中心, 北京 100871, 中国
推荐引用方式 GB/T 7714	姚莹莹,刘杰,张爱静,等. 黑河流域河道径流和人类活动对地下水动态的影响[J]. 北京大学,2014,34(5):973-981.
APA	姚莹莹,刘杰,张爱静,李希,田勇,&郑春苗.(2014).黑河流域河道径流和人类活动对地下水动态的影响.第四纪研究,34(5),973-981.
MLA	姚莹莹,et al."黑河流域河道径流和人类活动对地下水动态的影响".第四纪研究 34.5(2014):973-981.