Severe leaching of calcium ions from fir needles caused by acid fog

Manabu Igawa, Toshiyuki Kase, Kosuke Satake, Hiroshi Okochi

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We have measured the components of the throughfall under fir trees (Abies firma) in the field around Mt. Oyama, where the forest appears to be declining, for the period 1994-1998. Exposure experiments of a simulated acid fog to fir twigs were performed under field conditions. There was a similarity between the acid response in the field and that in the laboratory. In both studies, the severe leaching of calcium ions from the needle surface was caused by exposure to acid fog. We also applied acid fog to fir seedlings over 1 year and observed a decrease in the growth of the seedlings due to this application in the dormant season. These results suggest that the severe leaching of calcium ions due to acid fog may cause the deficiency of calcium and be responsible for the decline of the fir trees.

Original languageEnglish
Pages (from-to)375-382
Number of pages8
JournalEnvironmental Pollution
Volume119
Issue number3
DOIs
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

Weather
Fog
fog
Needles
Leaching
Calcium
Abies
calcium
leaching
Ions
Acids
ion
acid
Seedlings
seedling
throughfall
Growth
experiment
Experiments
exposure

Keywords

  • Abies firma
  • Acid fog
  • Calcium leaching
  • Forest decline
  • Throughfall

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Pollution

Cite this

Severe leaching of calcium ions from fir needles caused by acid fog. / Igawa, Manabu; Kase, Toshiyuki; Satake, Kosuke; Okochi, Hiroshi.

In: Environmental Pollution, Vol. 119, No. 3, 2002, p. 375-382.

Research output: Contribution to journalArticle

Igawa, Manabu ; Kase, Toshiyuki ; Satake, Kosuke ; Okochi, Hiroshi. / Severe leaching of calcium ions from fir needles caused by acid fog. In: Environmental Pollution. 2002 ; Vol. 119, No. 3. pp. 375-382.
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