English  |  正體中文  |  简体中文  |  Items with full text/Total items : 43312/67235
Visitors : 2108664      Online Users : 14
RC Version 5.0 © Powered By DSPACE, MIT. Enhanced by NTU/NCHU Library IR team.
National Chung Hsing University Institutional Repository - NCHUIR > 農業暨自然資源學院 > 土壤環境科學系 > 依資料類型分類 > 期刊論文 >  Assessment of terrestrial factors controlling the submarine groundwater discharge in water shortage and highly deformed island of Taiwan, western Pacific Ocean

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/128456

標題: Assessment of terrestrial factors controlling the submarine groundwater discharge in water shortage and highly deformed island of Taiwan, western Pacific Ocean
作者: Peng, T.R.;Chen, C.T.A.;Wang, C.H.;Zhanc, J.;Lin, Y.J.
彭宗仁
關鍵字: submarine groundwater discharge (SGD);stable oxygen isotope;groundwater budget analysis;fault zone;Taiwan;coastal zone;bay;inputs;nutrients;patterns
日期: 2008
Issue Date: 2012-12-07 14:49:21 (UTC+8)
關連: Journal of Oceanography, Volume 64, Issue 2, Page(s) 323-337.
摘要: Submarine groundwater discharge (SGD) from seventeen sites was investigated on the coasts around Taiwan in order to verify its occurrences and to understand its characteristics. The fresh water fraction (FWF) in most pore water samples, except the Fangsan sampling site, range from 0 to 59% based on the salinity evidence. The relative low FWF evidence implies that the recirculated saline groundwater discharge (RSGD) is more important than the submarine fresh groundwater discharge (SFGD) in most sampling sites. Fangsan, which is located at the southwestern coast of Taiwan, has nearly 100% FWF in SGD. Evaluation of the relationship between the magnitude of SGD flux and geological type of the Taiwanese coast proves to be difficult because complex hydrological factors affect the SGD, rather than the coastal topography. According to the hydrological evidence, the modeled-SGD discharge is enhanced by high precipitation but is generally reduced by severe groundwater pumping. In addition, modeled-SGD has an inverse relationship with river base flow, indicating the river effect. The almost fresh SGD with flow rates ranged from 34 to 42 m/year at Fangsan deserves attention because a seven-year-long groundwater budget calculation implies that the aquifer could not supply so much fresh SGD over a large area. This suggests that a significant amount of fresh water SGD at Fangsan is derived from a point source via a fault passage, considering its geological background. Although the rudimentary salinity and stable isotope results indicate that RSGD plays an important role in SGD, the type of submarine spring discharge via fault zones may very well be the most prominent in highly deformed areas elsewhere in the world, too.
Relation: Journal of Oceanography
Appears in Collections:[依資料類型分類] 期刊論文
[依教師分類] 彭宗仁

loading Web of Knowledge data....

Files in This Item:

File SizeFormat
index.html0KbHTML376View/Open


 


學術資源

著作權聲明

本網站為收錄中興大學學術著作及學術產出,已積極向著作權人取得全文授權,並盡力防止侵害著作權人之權益。如仍發現本網站之數位內容有侵害著作權人權益情事者,請權利人通知本網站維護人員,將盡速為您處理。

本網站之數位內容為國立中興大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用。

聯絡網站維護人員:wyhuang@nchu.edu.tw,04-22840290 # 412。

DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU/NCHU Library IR team Copyright ©   - Feedback