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Sustainable development and manageme...

The University of Alabama.

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Sustainable development and management of an aquifer system in the North China Plain.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Sustainable development and management of an aquifer system in the North China Plain./
作者:	Liu, Jie.
面頁冊數:	200 p.
附註:	Adviser: Chunmiao Zheng.
Contained By:	Dissertation Abstracts International68-10B.
標題:	Geology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3286160
ISBN:	9780549287360

Sustainable development and management of an aquifer system in the North China Plain.
Liu, Jie.

Sustainable development and management of an aquifer system in the North China Plain. - 200 p.

Adviser: Chunmiao Zheng.

Thesis (Ph.D.)--The University of Alabama, 2007.

Intensive groundwater development for irrigated agriculture and industrial production over the past 40 years in the North China Plain (NCP) has caused a rapid depletion of the groundwater resources. The decline in groundwater levels has caused serious environmental problems, such as land subsidence, saltwater intrusion, ecosystem deterioration, and the escalating of pumping costs.

ISBN: 9780549287360Subjects--Topical Terms:

516570
Geology.

Sustainable development and management of an aquifer system in the North China Plain.
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520 $a Intensive groundwater development for irrigated agriculture and industrial production over the past 40 years in the North China Plain (NCP) has caused a rapid depletion of the groundwater resources. The decline in groundwater levels has caused serious environmental problems, such as land subsidence, saltwater intrusion, ecosystem deterioration, and the escalating of pumping costs.
520 $a A groundwater flow model was first constructed for a pilot study site surrounding the city of Shijiazhuang to simulate the groundwater dynamics since the 1950's. The analysis of flow budgets computed in 2004 suggested an unsustainable utilization of groundwater resources, with discharge surpassing recharge by nearly 100%. The calibrated groundwater model was used to make predictions and assess management scenarios of groundwater resources: (1) under different climate and water demand conditions; (2) after implementation of the South-to-North Water Transfer project; and (3) assuming urbanization of Luancheng County.
520 $a Next, management optimization modeling was conducted to improve the sustainability of groundwater utilization. Based on the calibrated flow model, an optimization formulation was first set up to identify the optimal pumping well locations and rates that lead to maximal total aquifer yield, subject to a series of water level constraints. A second optimization formulation was then considered to minimize the total management costs to meet the projected total water demands, also subject to the same set of water level constraints.
520 $a The third stage of this study used the integrated hydrologic modeling software---MIKE SHE---to explore the hydrologic system in the NCP. The model successfully reproduced the groundwater and surface water levels, and provided the total water budget for the system. Sensitivity analysis indicated that the model is most sensitive to the subsurface hydraulic conductivity and the river-aquifer exchange coefficient. More than 80% of inflows leave the system through evapotranspiration (ET), and more than 20% are pumped out of the system. The deficit in the water budget was compensated from the aquifer storage. The methods and techniques to reduce ET and optimize the pumping activity would be helpful for sustainable water development in the NCP. This study provides a good example for other similar areas of the world.
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