Investigating the interactive mechanisms between surface water and groundwater over the Jhuoshuei river basin in central Taiwan
學年 102
學期 2
出版（發表）日期 2014-07-01
作品名稱 Investigating the interactive mechanisms between surface water and groundwater over the Jhuoshuei river basin in central Taiwan
作品名稱（其他語言）
著者 Chang F. J.; Lin C. H.; Chang K. C.; Kao Y. H.; Chang L. C.
單位 淡江大學水資源及環境工程學系
出版者 Germany: Springer
著錄名稱、卷期、頁數 Paddy and Water Environment 12(3), pp.365-377
摘要 In Taiwan, groundwater commonly becomes important water resources in dry periods, and/or areas lack of water storage facility due to its low cost, steady water supply and good water quality. However, improper groundwater development brings about serious decreases in groundwater levels and land subsidence which causes disasters, such as seawater intrusion or soil salination, accompanied with environmental and economic losses. It is critical to develop strategies for water resources conservation in mountainous areas. The complex heterogeneity of mountainous physiographic environment makes it challenging in the forecasts of groundwater level variations, particularly in mountainous areas. Artificial neural networks (ANNs) have been recognized as an effective modeling tool for complex nonlinear systems in the last two decades. This study aims to investigate the interactive mechanisms of groundwater at the mountainous areas of the Jhuoshuei river basin in central Taiwan through analyzing and modeling the groundwater level variations. Several issues are discussed in this study, which includes the correlation between groundwater level variation and rainfall as well as streamflow, the identification of groundwater recharge patterns and effective rainfall thresholds for estimating groundwater level variations. The results indicate: (1) the daily variation of groundwater level is closely correlated with river flow and one-day antecedent rainfall based on correlation analyses; (2) effective rainfall thresholds can be identified successfully; (3) groundwater level variations can be classified into four types for monitoring wells; and (4) the daily variations of groundwater level can be well estimated by constructed ANNs. The identified interactive mechanisms between surface water and groundwater can facilitate the mountainous water resource conservation strategy for better water management, especially irrigation water supply and for alleviating land subsidence in downstream areas in the future.
關鍵字
語言 en
ISSN 1611-2504
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Chang, Fi-John
審稿制度 是
國別 DEU
公開徵稿
出版型式 電子版 紙本
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