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Effects of Acid Deposition on Cation Contents of Pinus densiflora needles in Namsan  

Lee Sang-Deok (Department of Atmospheric Chemistry, Nat'l Institute of Environmental Research)
Han Jin-Seok (Department of Atmospheric Chemistry, Nat'l Institute of Environmental Research)
Joo Yeong-Teuk (Department of Forest Resources Protection, Kangwon Nat'l University)
Oh Hyun-Kyung (Department of Plant Ecology, Nat'l Institute of Environmental Research)
Kong Hak-Yang (Department of Plant Ecology, Nat'l Institute of Environmental Research)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.7, no.2, 2005 , pp. 125-131 More about this Journal
Abstract
This study investigated effects of acid deposition on cation contents of rinus densiflora needles. The results of the investigation were as follows: By regression the ion balance was shown to be 1.01 of slope and 0.973 of $R^2$. The volume weighted average pH measurements of wet deposition in Seoul from January to December, 2001, 2002 and 2003 were: pH 5.1, pH 5.0 and pH 4.8, respectively. The annual wet deposition ion amount was shown to gradually increase during this study period. Cation content of needles in the fall season was higher than during other seasons, but $Al^{3+}$ ion contents showed nodifferences among seasons. When ion concentrations of wet deposition were higher, cation contents of needles were generally lower.
Keywords
Pinus densiflora; Acid deposition; Cation content;
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