ダム構造物の影響　　河川連続体で不連続の原因となるダム貯水による水質変化

• 香川 尚徳

  愛媛大学農学部

書誌事項

タイトル別名

• Changes in river water quality by impoundment as the cause of discontinuity in the river continuum
• カセン レンゾクタイ デ フレンゾク ノ ゲンイン ト ナル ダム チョスイ ニ ヨル スイシツ ヘンカ

抄録

The author firstly introduces three fundamental concepts regarding river ecosystems, i.e. river continuum, serial discontinuity and nutrient spiralling. Secondly, the author reviews the states of discontinuity caused by impoundment of rivers in five categories of water quality, i.e. water temperature, particulate matter, chlorophyll-a, nutrients and anaerobic water environment, taking into consideration with the effects of water quality changes on the downstream ecosystems. Finally, the author discusses measures to mitigate discontinuities using natural water movements and natural substances, and recommends the throughflow regulation method and the application of barley straw, especially against eutrophication.

収録刊行物

• 応用生態工学

  応用生態工学 2 (2), 141-151, 1999

  応用生態工学会

キーワード

• discontinuity
• eutrophication
• reservoir
• river continuum
• water quality

詳細情報

• CRID: 1390001204473176192
• NII論文ID: 10021975838
• NII書誌ID: AA11528360
• DOI: 10.3825/ece.2.141
• ISSN: 18825974
• ISSN: 13443755
• ISSN: http://id.crossref.org/issn/13443755
• NDL書誌ID: 4955252
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4955252
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可