Change in mountainous stream water chemistry after passage through the wetland-like topography formed by a small sabo-dam.

• Nakagawa Y.

  Laboratory of Forest Ecology, Graduate School of Agriculture, Kyoto University

Bibliographic Information

Other Title

• 砂防堰堤により形成された湿地状地形による山地渓流水の水質変化
• サボウ エンテイ ニ ヨリ ケイセイ サレタ シッチジョウ チケイ ニ ヨル サンチ ケイリュウスイ ノ スイシツ ヘンカ

Abstract

Change in mountainous stream water chemistry after passing through the pile of accumulated sand formed by a small sabo-dam was evaluated. In this passage, pH and the concentrations of Na⁺, K⁺, Ca⁺, Si, SO₄^2--S, NO₃^--N : p< 0.001), while Cl- concentration increased (p< 0.05). The concentrations of Na⁺, Si, Ca²⁺, SO₄^2--S, and NO₃^--N and pH decreased more with lower water level at the sand pile. In lower water level at the sand pile, lower flow rate of stream water and its longer contact time with the sand pile were thought to have caused the larger change in stream water chemistry. It was suggested that the change in stream water chemistry could have been caused by the mixture with the dilute and low pH soil solution at the parts of the soil subject to humus formation on the surface of the sand pile.

Journal

• JOURNAL OF THE JAPANESE FORESTRY SOCIETY

  JOURNAL OF THE JAPANESE FORESTRY SOCIETY 82 (2), 163-170, 2000

  THE JAPANESE FORESTRY SOCIETY

Keywords

• change in water chemistry
• mountainous stream water
• sabo-dam
• water level at sand pile
• wetland-like topography

Details

• CRID: 1390001206359047168
• NII Article ID: 110002830944
• NII Book ID: AN00198561
• DOI: 10.11519/jjfs1953.82.2_163
• ISSN: 21858195
• ISSN: 0021485X
• NDL BIB ID: 5415402
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030612426
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5415402
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed