River-mouth dam effect on integrated management of a coastal water resource in a Seto Inland Sea watershed, Western Japan

Mitsuyo Saito, Shin Ichi Onodera, Misa Sawano, Yuta Shimizu, Hidehiro Takahashi, Masato Fukuoka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To evaluate the groundwater resource in the coastal area of the Ashida River, which is one of the catchment of the Seto Inland Sea, we tried to estimate the variation of the volume of "fresh" groundwater (no seawater intrusion) before and after the construction of the river-mouth dam. The result suggests that it has increased since the dam construction in 1978, apparently by the shift of the brackish-freshwater boundary from inland to the coastal line. The volume of brackish water was estimated to be approximately twice that before 1978. The result suggests that the coastal groundwater is a valuable freshwater resource in the study area for the future.

Original languageEnglish
Title of host publicationImproving Integrated Surface and Groundwater Resources Management in a Vulnerable and Changing World
Pages150-153
Number of pages4
Publication statusPublished - Dec 1 2009
Externally publishedYes
EventSymposium JS.3 at the Joint Convention of the International Association of Hydrological Sciences, IAHS and the International Association of Hydrogeologists, IAH - Hyderabad, India
Duration: Sep 6 2009Sep 12 2009

Publication series

NameIAHS-AISH Publication
Volume330
ISSN (Print)0144-7815

Other

OtherSymposium JS.3 at the Joint Convention of the International Association of Hydrological Sciences, IAHS and the International Association of Hydrogeologists, IAH
CountryIndia
CityHyderabad
Period9/6/099/12/09

Keywords

  • City water simply
  • Coastal groundwater
  • Qualitative problem
  • River-mouth dam
  • Water use

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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  • Cite this

    Saito, M., Onodera, S. I., Sawano, M., Shimizu, Y., Takahashi, H., & Fukuoka, M. (2009). River-mouth dam effect on integrated management of a coastal water resource in a Seto Inland Sea watershed, Western Japan. In Improving Integrated Surface and Groundwater Resources Management in a Vulnerable and Changing World (pp. 150-153). (IAHS-AISH Publication; Vol. 330).