Conference Paper: Seawater intrusion and aquifer freshening near reclaimed coastal area of Shenzhen

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TitleSeawater intrusion and aquifer freshening near reclaimed coastal area of Shenzhen
AuthorsChen, KP1
Jiao, JJ1
KeywordsCoastal Groundwater
Land Reclamation
Seawater Intrusion
Shenzhen
Issue Date2007
PublisherI W A Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst_ws
CitationWater Science And Technology: Water Supply, 2007, v. 7 n. 2, p. 137-145 [How to Cite?]
DOI: http://dx.doi.org/10.2166/ws.2007.048
AbstractLocal groundwater in coastal aquifers in Shenzhen has experienced heavy pumping since the 1980s when it began to expand very quickly from a fishing village to a modern city. Meanwhile, large-scale land reclamation was carried out to meet the needs of various urbanization projects. In this paper we analyzed the groundwater from a coastal aquifer system in Shenzhen and examined the evolution of groundwater chemistry over the last 20 years. The temporal changes of ionic ratios of rCa/(rHCO3 + rSO4) and the relationship between sodium and chloride in the coastal area over this period indicate that the aquifer experienced seawater intrusion in the 1980s but underwent gradual freshening in the 1990s. It is speculated that seawater intrusion was induced by excessive groundwater pumping and that the aquifer freshening was caused both by the recent reduction in groundwater pumping and by coastal reclamation which moved the interface between fresh groundwater and saline groundwater seaward. © IWA Publishing 2007.
ISSN1606-9749
2011 SCImago Journal Rankings: 0.038
DOIhttp://dx.doi.org/10.2166/ws.2007.048
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorChen, KP
dc.contributor.authorJiao, JJ
dc.date.accessioned2012-06-26T06:40:40Z
dc.date.available2012-06-26T06:40:40Z
dc.date.issued2007
dc.description.abstractLocal groundwater in coastal aquifers in Shenzhen has experienced heavy pumping since the 1980s when it began to expand very quickly from a fishing village to a modern city. Meanwhile, large-scale land reclamation was carried out to meet the needs of various urbanization projects. In this paper we analyzed the groundwater from a coastal aquifer system in Shenzhen and examined the evolution of groundwater chemistry over the last 20 years. The temporal changes of ionic ratios of rCa/(rHCO3 + rSO4) and the relationship between sodium and chloride in the coastal area over this period indicate that the aquifer experienced seawater intrusion in the 1980s but underwent gradual freshening in the 1990s. It is speculated that seawater intrusion was induced by excessive groundwater pumping and that the aquifer freshening was caused both by the recent reduction in groundwater pumping and by coastal reclamation which moved the interface between fresh groundwater and saline groundwater seaward. © IWA Publishing 2007.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationWater Science And Technology: Water Supply, 2007, v. 7 n. 2, p. 137-145 [How to Cite?]
DOI: http://dx.doi.org/10.2166/ws.2007.048
dc.identifier.doihttp://dx.doi.org/10.2166/ws.2007.048
dc.identifier.epage145
dc.identifier.issn1606-9749
2011 SCImago Journal Rankings: 0.038
dc.identifier.issue2
dc.identifier.scopuseid_2-s2.0-34548189448
dc.identifier.spage137
dc.identifier.urihttp://hdl.handle.net/10722/152513
dc.identifier.volume7
dc.languageeng
dc.publisherI W A Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst_ws
dc.publisher.placeUnited Kingdom
dc.relation.ispartofWater Science and Technology: Water Supply
dc.relation.referencesReferences in Scopus
dc.subjectCoastal Groundwater
dc.subjectLand Reclamation
dc.subjectSeawater Intrusion
dc.subjectShenzhen
dc.titleSeawater intrusion and aquifer freshening near reclaimed coastal area of Shenzhen
dc.typeConference_Paper
Author Affiliations
  1. The University of Hong Kong