融雪時における渓流水のｐＨ低下

• 鈴木 啓助

  東京都立大学理学部

書誌事項

タイトル別名

• Acidification of Stream Water during the Snowmelt Season.

抄録

Chemical studies of the stream water in a small forested watershed were conducted at Aidzu-Tajima, Fukushima prefecture. The experimental watershed is located under the snowy temperate climate, and has an area of 0.14km2. The bedrock of the watershed consists of consolidated sediment formed in the Neogene. The watershed is entirely covered with forest vegetation. Maximum monthly precipitation is observed in summer; however, maximum monthly runoff is recorded in snowmelt season. The HCO3- concentration of stream water is diluted by snow meltwater, and episodic increase of concentrations of Cl-, NO3- and SO42- is observed during the snowmelt season. The pH of stream water is lower during the snowmelt season than summer and autumn. The ionic composition of stream water is variable according to the seasons. Bicarbonate is the major anion in summer, and the ratio of Cl-+ NO3-+SO42- increases in snowmelt season.

収録刊行物

• 水文・水資源学会誌

  水文・水資源学会誌 8 (6), 568-573, 1995

  水文・水資源学会

キーワード

• 酸性化,温暖積雪流域,融雪流出,pH低下,溶存成分組成

詳細情報

• CRID: 1390282679417101312
• NII論文ID: 10009849429
• NII書誌ID: AN10088049
• DOI: 10.3178/jjshwr.8.568
• ISSN: 13492853
• ISSN: 09151389
• ISSN: http://id.crossref.org/issn/09151389
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可