丹沢大山における酸性降下物とスギ，モミ樹冠との相互作用

• 大河内 博

  神奈川大学工学部

• 細野 哲也

  神奈川大学工学部

• 丸山 文隆

  神奈川大学工学部

• 井川 学

  神奈川大学工学部

書誌事項

タイトル別名

• Interaction between Acid Deposition and the Canopy of the Japanese Cedar and Fir in Mt.Oyama.

抄録

Throughfall of the Japanese cedar and fir was collected weekly with precipitation in Mt. Oyama in the southwest of the Kanto Plain. Annual volume weighted mean pH of precipitation was 4.82, 4.76, and 4.94 from 1991 to 1993, respectively. The mean concentrations of major ions in precipitation in Mt. Oyama were lower than those in city area, Yokohama. However, there were very little differences between deposition fluxes of H⁺ and NO^3- in Mt. Oyama (31.4, 43.3 meq/m²/y on the three years average, respectively) and those in Yokohama. Annual amount of water of throughfall for both species was about 60-90% of that of precipitation and total deposition fluxes of major ions were about 2-4 times larger than those of precipitation. In major ions, Na⁺, Cl^-, and SO₄^2- were assumed to be originated mainly from atmospheric input, whereas K⁺, Ca²⁺, and Mg²⁺ were leached from the canopy. In the growing season, NO^3- was absorbed only to the fir canopy. It was indicated that K⁺ was leached from the canopy not only by ion exchange with W but also as the organic salt because of the high correlation between concentrations of total organic carbon (TOC) and K⁺ (r=0.85 and 0.80 for the cedar and fir canopy, respectively).

収録刊行物

• 環境科学会誌

  環境科学会誌 8 (3), 305-315, 1995

  社団法人 環境科学会

キーワード

• 酸性降下物,降水,林内雨,全有機炭素(TOC)

詳細情報

• CRID: 1390282679396368384
• NII論文ID: 10002756876
• NII書誌ID: AN10165252
• DOI: 10.11353/sesj1988.8.305
• ISSN: 18845029
• ISSN: 09150048
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可