Tree Ring Ca/Al as an Indicator of Historical Soil Acidification of Pinus Densiflora Forest in Southern Korea
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BACKGROUND:Soil acidification, which is known to be one of the reasons of forest decline, is associated with decreases in exchangeable Ca and increases in Al concentration, leading to low Ca/Al ratio in soil solution. As tree rings are datable archives of environmental changes, Ca/Al ratios of annual growth ring may show decreasing pattern in accordance with the progress of soil acidification. This study was conducted to investigate Ca/Al pattern of Pinus densiflora tree ring in an attempt to test its usefulness as an indicator of historical soil acidification. METHODS AND RESULTS:Three P. densiflora tree disks were collected from P. densiflora forests in Jeonnam province, and soil samples (0‐10, 10‐20, and 20‐30 cm in depth) were also collected from the tree locations. Soils were analyzed for pH and exchangeable Ca and Al concentrations, and Ca/Al was calculated. Annual growth rings formed between 1969 and 2007 were separated and analyzed for Ca/Al. Soil Ca/Al was positively (P<0.01) correlated with soil pH, suggesting that soil acidification decreased Ca while increasing Al availability, lowering Ca/Al in soil solution. The Ca/Al of tree rings also showed a decreasing pattern from 18.2 to 5.5 during the period, and this seemed to reflect historical acidification of the soils. CONCLUSION(s):The relationship between soil pH and Ca/Al and the decreasing pattern of Ca/Al of tree ring suggest that Ca/Al of tree ring needs to be considered as a proxy of the progress of soil acidification in P. densiflora forest in southern Korea.
Abstract
BACKGROUND:Soil acidification, which is known to be one of the reasons of forest decline, is associated with decreases in exchangeable Ca and increases in Al concentration, leading to low Ca/Al ratio in soil solution. As tree rings are datable archives of environmental changes, Ca/Al ratios of annual growth ring may show decreasing pattern in accordance with the progress of soil acidification. This study was conducted to investigate Ca/Al pattern of Pinus densiflora tree ring in an attempt to test its usefulness as an indicator of historical soil acidification. METHODS AND RESULTS:Three P. densiflora tree disks were collected from P. densiflora forests in Jeonnam province, and soil samples (0‐10, 10‐20, and 20‐30 cm in depth) were also collected from the tree locations. Soils were analyzed for pH and exchangeable Ca and Al concentrations, and Ca/Al was calculated. Annual growth rings formed between 1969 and 2007 were separated and analyzed for Ca/Al. Soil Ca/Al was positively (P<0.01) correlated with soil pH, suggesting that soil acidification decreased Ca while increasing Al availability, lowering Ca/Al in soil solution. The Ca/Al of tree rings also showed a decreasing pattern from 18.2 to 5.5 during the period, and this seemed to reflect historical acidification of the soils. CONCLUSION(s):The relationship between soil pH and Ca/Al and the decreasing pattern of Ca/Al of tree ring suggest that Ca/Al of tree ring needs to be considered as a proxy of the progress of soil acidification in P. densiflora forest in southern Korea.
참고문헌 (22)
- Alewell, C., "Effects of reduced atmospheric deposition on soil solution chemistry and elemental contents of spruce needles in NE‐Bavaria, Germany", J. Plant Nutr. Soil Sci, 163, pp.509~516 (2000)
- Barton, C.D., "Influence of acidic atmospheric deposition on soil solution composition in the Daniel Boone National Forest, Kentucky, USA", Environ. Geol, 41, pp.672~682 (2002)
- Bondietti, E.A., "A historical perspective on changes in cation availability to red spruce in relationship to acidic deposition", Can J. For. Res, 20, pp.1850~1858 (1990)
- Brady, N.C., "The Nature and Properties of Soils", pp.371~ (2002), Pearson Education
- Choi, W.J., "Variations of δ13C and δ15N in Pinus densiflora tree‐rings and their relationship to environmental changes in eastern Korea", Water Air Soil Pollut, 164, pp.173~187 (2005)
- Choi, W.J, "Drainage affects tree growth and C and N dynamics in a minerotrophic peatland", ECOLOGY, 88(2), pp.443~453 (2007), ECOLOGICAL SOC AMER
- Dawei, Z., "Acid deposition and acidification of soil and water in the Tie Shan Ping area, Chongqing,China", Water Air Soil Pollut, 130, pp.1733~1738 (2001)
- DeWalle, D.R, "Tree‐ring cation response to experimental watershed acidification in West Virginia and Maine", J. Environ. Qual, 28, pp.299~309 (1999)
- Gee, G.W, "Particle‐size analysis, In Methods of Soil Analysis, Part 1: Physical and Mineralogical Methods", pp.383~412 (1986), ASA and SSSA
- Kume, A., "Physiological characteristics of Japanese red pine, Pinus densiflora Sieb. et Zucc., in declined forests at Mt. Gokurakuji in Hiroshima Prefecture, Japan", Trees‐Struct. Funct, 14, pp.305~311 (2000)
- Kwak, J.H, "δ13C, δ15N, N concentration, and Ca‐to‐Al ratios of forest samples from Pinus densiflora stands in rural and industrial areas", Chem. Geol, 264, pp.385~393 (2009)
- Kwak, J.H., "Relating tree ring chemistry of Pinus densiflora to precipitation acidity in an industrial area of South Korea", Water Air Soil Pollut, 199, pp.95~106 (2009)
- Kwak, J.H., "Potential use of δ13C, δ15N, N concentration, and Ca", Al of Pinus densiflora tree rings in estimating historical precipitation pH, 2011, pp.11, 709~721
- Momoshima, N, "Cation binding in wood: applications to understanding historical changes in divalent cation availability to red spruce", Can. J. For. Res, 20, pp.1840~1849 (1990)
- Ott, R.L., "An Introduction to Statistical Methods and Data Analysis", pp.772~773 (2001), Thomson Learning
- Rural Development Administration of Korea, "Detailed Korea Soil Map" (2000), Rural Development Administration
- Sakata, M., "Variations of wood δ13C for the past 50 years in declining Siebold’s beech (Fagus crenata) forests", Environ. Exp. Bot, 45, pp.33~41 (2001)
- Shan, Y., "Effects of simulated acid rain on Pinus densiflora: inhibition of net photosynthesis by the pheophytinzation of chlorophyll", Water Air Soil Pollut, 103, pp.121~127 (1998)
- Shan, Y., "Effects of O3 and soil acidification, alone and in combination, on growth, gas exchange rate and chlorophyll content of red pine seedling", Water Air Soil Pollut, 97, pp.355~366 (1997)
- Sumner, M.E, "Cation exchange capacity and exchange coefficients, In Methods of Soil Analysis, Part 3: Chemical Methods", pp.1201~1229 (1996), ASA and SSSA
- van Breemen, N., "Plant‐soil interactions: ecological aspects and evolutionary implications", Biogeochemistry, 42, pp.1~19 (1998)
- Yanai, R.D., "Spatial and temporal variation in calcium and aluminum in northern hardwood forest floors", Water Air Soil Pollut, 160, pp.109~118 (2005)