identification of groundwater recharge and nitrate pollution in the Kanegawa alluvial fan of the Kofu Basin, Japan, using stable isotopes and ions

• WIJAYANTI YUREANA

  Interdisciplinary Graduate School of Medicine and Engineering, Univ. of Yamanashi

• NAKAMURA TAKASHI

  Interdisciplinary Graduate School of Medicine and Engineering, Univ. of Yamanashi

• NISHIDA KEI

  Interdisciplinary Graduate School of Medicine and Engineering, Univ. of Yamanashi

• HARAMOTO EIJI

  Interdisciplinary Graduate School of Medicine and Engineering, Univ. of Yamanashi

• SAKAMOTO YASUSHI

  Interdisciplinary Graduate School of Medicine and Engineering, Univ. of Yamanashi

抄録

Major ions and stable isotopic measurements were utilized in order to investigate the groundwater recharge and nitrate pollutant transformation of shallow alluvial groundwater aquifer. The spatial distribution and multivariate analysis of ions, combined with stable isotope analysis were performed. The result showed that precipitation contributed to the whole year groundwater recharge. Pollutants were transported from the land surface through an infiltration of precipitation. Sources of nitrate are from ammonium fertilizer, manure and septic waste. According to the ion and isotope characteristics, both denitrification and mixing process could take place. The statistical correlation and cluster analysis coupled by spatial analysis approach, based on isotope and ion data could be utilized for a quick assessment of groundwater recharge and nitrate pollution dynamics in an alluvial fan.

収録刊行物

• 土木学会論文集Ｂ１（水工学）

  土木学会論文集Ｂ１（水工学） 68 (4), I_199-I_204, 2012

  公益社団法人 土木学会

キーワード

• water isotope, nitrogen isotope
• major ions
• groundwater
• river water
• correlation and cluster analysis

詳細情報

• CRID: 1390001205351654912
• NII論文ID: 130004557949
• DOI: 10.2208/jscejhe.68.i_199
• ISSN: 2185467X
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可