陸水の酸性化における地質・水文条件の影響-鉱物の化学的風化による中和作用の流域間比較- Effect of Hydrogeochemical Properties of Watersheds on Inland Water Acidification-Comparison of Acid-neutralization Due to Chemical Weathering between Acidified and Non-acidified Watersheds-

この論文にアクセスする

この論文をさがす

著者

    • 池田 英史 IKEDA Hideshi
    • (財)電力中央研究所我孫子研究所 Abiko Research Laboratory, Center Research Institute of Electric Power Industry
    • 宮永 洋一 MIYANAGA Yoichi
    • (財)電力中央研究所我孫子研究所 Abiko Research Laboratory, Center Research Institute of Electric Power Industry

抄録

In future, freshwaters in Japan are likely to become acidified by increasing acid deposition in eastern Asia. In order to predict the long-term acidification of freshwaters, it is necessary to evaluate acid neutralization mechanism in Japanese watersheds.In this paper, an estimation method for acid-neutralization by chemical weathering is proposed, and applied to acidified and non-acidified watersheds in order to compare acid-neutralization mechanism. The principal results are :(1) Japanese non-acidified watersheds receive approximately the same amount of acidic deposition as an acidified watershed in U.S.A..(2) In Japanese non-acidified watersheds, acid deposition is neutralized by chemical weathering of primary minerals. On the other hand, in the acidified watershed, chemical weathering rates of primary minerals are much smaller than those in Japanese non-acidified watersheds. Therefore, acid deposition is not neutralized in this watershed.(3) Typical properties of watersheds vulnerable to acidification are :1) Dominant primary minerals in soil and bedrock are stable against acid deposition.2) Soil thickness (weathering zone) is relatively small.3) The ratio of chemical weathering ratio to acidic deposition is relatively small.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment  

    水環境学会誌 = Journal of Japan Society on Water Environment 22(8), 655-662, 1999-08 

    公益社団法人 日本水環境学会

参考文献:  24件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  3件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10004453030
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    4834502
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ