Combining groundwater quality analysis and a numerical flow simulation for spatially establishing utilization strategies for groundwater and surface water in the Pingtung Plain

NCUIR > College of Earth Sciences > Graduate Institute of Applied Geology > journal & Dissertation > Item 987654321/108558

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/108558

Title:	Combining groundwater quality analysis and a numerical flow simulation for spatially establishing utilization strategies for groundwater and surface water in the Pingtung Plain
Authors:	陳瑞昇;Jang, Cheng-Shin;Chen, Ching-Fang;Liang, Ching-Ping;Chen, Jui-Sheng
Contributors:	地球科學學院應用地質研究所
Keywords:	Aquaculture;drawdown;Drinking;drinking water;Flow simulation;Freshwater;Ground-water quality;Groundwater;groundwater flow;Groundwater levels;hydrologic models;Irrigation;irrigation water;kriging;lakes;Mathematical models;MODFLOW;Multivariate indicator kriging;planning;saltwater intrusion;subsidence;Surface water;Taiwan;water conservation;water quality;water quality standards;water supply;water table
Date:	2016-02-01
Issue Date:	2026-04-23 14:54:51 (UTC+8)
Publisher:	Elsevier;Elsevier B.V
Abstract:	摘要： •Combining groundwater quality analysis and numerical flow simulation.•Multivariate indicator kriging method was used to estimate occurrence probabilities.•Establish utilization strategies of groundwater and surface water. Overexploitation of groundwater is a common problem in the Pingtung Plain area of Taiwan, resulting in substantial drawdown of groundwater levels as well as the occurrence of severe seawater intrusion and land subsidence. Measures need to be taken to preserve these valuable groundwater resources. This study seeks to spatially determine the most suitable locations for the use of surface water on this plain instead of extracting groundwater for drinking, irrigation, and aquaculture purposes based on information obtained by combining groundwater quality analysis and a numerical flow simulation assuming the planning of manmade lakes and reservoirs to the increase of water supply. The multivariate indicator kriging method is first used to estimate occurrence probabilities, and to rank townships as suitable or unsuitable for groundwater utilization according to water quality standards for drinking, irrigation, and aquaculture. A numerical model of groundwater flow (MODFLOW) is adopted to quantify the recovery of groundwater levels in townships after model calibration when groundwater for drinking and agricultural demands has been replaced by surface water. Finally, townships with poor groundwater quality and significant increases in groundwater levels in the Pingtung Plain are prioritized for the groundwater conservation planning based on the combined assessment of groundwater quality and quantity. The results of this study indicate that the integration of groundwater quality analysis and the numerical flow simulation is capable of establishing sound strategies for joint groundwater and surface water use. Six southeastern townships are found to be suitable locations for replacing groundwater with surface water from manmade lakes or reservoirs to meet drinking, irrigation, and aquaculture demands. 出版者： Elsevier B.V 出版日期： 2016-02 出處： Journal of hydrology (Amsterdam), 2016-02, Vol.533, p.541-556 資源來源： Elsevier ScienceDirect 版權： 2015 Elsevier B.V. 識別號： ISSN: 0022-1694 識別號： EISSN: 1879-2707 識別號： DOI: 10.1016/j.jhydrol.2015.12.023
Appears in Collections:	[Graduate Institute of Applied Geology] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	33	View/Open

社群 sharing

Loading...