Estimation of River Eutrophication by Using Nitrogen Isotope Ratios

• KOHZU Ayato

  Japan Science and Technology Agency

Bibliographic Information

Other Title

• 窒素安定同位体比による富栄養化診断　　解説シリーズ「流域の水・物質循環とそれを保全・管理するための水文学・生態学的視点」
• 流域の水・物質循環とそれを保全・管理するための水文学・生態学的視点 窒素安定同位体比による富栄養化診断
• リュウイキ ノ ミズ ブッシツ ジュンカン ト ソレ オ ホゼン カンリ スル タメ ノ スイモンガク セイタイガクテキ シテン チッソ アンテイ ドウイタイヒ ニ ヨル フエイヨウカ シンダン
• 解説シリーズ「流域の水・物質循環とそれを保全・管理するための水文学・生態学的視点」

Abstract

The past hydrological study about water pollution had been focused on the detection of pollution source and/or the estimation of the pollution level. However, much more detail information about the foodweb structures and the matter flows are required to restore the polluted sites appropriately. Stable isotope analysis seems to be most useful for the monitoring of eutrophication and foodweb structures. Nitrogen isotope ratios of nitrate, plant and primary consumers increased in the aquatic systems with large anthropogenic impacts. This was due to the input of anthropogenic nitrogen with high nitrogen isotope ratios and/or the enhanced denitrification and ammonia volatilization. Stable isotope analysis that could be applicable from foodweb structures to nutrient cycling should become one of the most important research tools that can integrate the hydrology and ecology.

Journal

• JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

  JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES 19 (5), 413-419, 2006

  THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

Keywords

• isotope ratios
• δ^{<font size="1">15</font>}N
• food web
• eutrophication
• anthropogenic input
• trophic level

Details

• CRID: 1390001204439068160
• NII Article ID: 10018074551
• NII Book ID: AN10088049
• DOI: 10.3178/jjshwr.19.413
• ISSN: 13492853
• ISSN: 09151389
• NDL BIB ID: 8092185
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8092185
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed