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Relation of Acid Depositions and Chlorophyll Concentration in the Pinus thunbergii Leaf  

Lee, Chong-Kyu (Department of Forest Resources, Gyeongnam National Univ. of Sci. and Tech.)
Kim, Jong-Kab (Department of Forest Environmental Resources, Gyeongsang National Univ.)
Hwang, Jin-Hyeong (Gyeongsangnam-do Forest Environment Research Institute)
Publication Information
Journal of agriculture & life science / v.45, no.2, 2011 , pp. 35-41 More about this Journal
Abstract
This study was carried out to investigate the relation of acid depositions and chlorophyll concentration in the Pinus thunbergii leaves. pH of throughfall in Pinus thunbergii forest was 4.20 at industrial sites, and 4.87 at urban sites. Total chlorophyll concentration in leaves were 0.5984 at industrial sites, and 0.6784 at urban sites. The average $SO_2$ concentration in air was 0.029ppm at industrial sites, and 0.011ppm at urban sites. Correlation between chlorophyll concentration in the Pinus thunbergii leaves and acid depositions was pH (r=-0.8769), ${NO_3}^-$ (r=0.6983), ${SO_4}^{2-}$ (r=0.8929), $SO_2$ (r=0.8738), and $NO_2$ (r=0.8523) (p<0.001). respectively. The estimation equation of chlorophyll concentration in the Pinus thunbergii leaf (Y) were given by Y=4.8979 + 0.7698pH + $0.8412{SO_4}^2$ + $0.8673SO_2$, + $0.8767NO_2$+ $0.8767{NO_3}^-$ ($r^2$=0.8873), which coefficients of determination was 0.88.
Keywords
Acid deposition; Pinus thunbergii leaves; Throughfall; Chlorophyll;
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