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Edge effects on soil acidification in forests on sandy soils under high deposition load

Karen Wuyts (UGent) , An De Schrijver (UGent) , Jeroen Staelens (UGent) and Kris Verheyen (UGent)
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Abstract
This study investigated how forest soil acidification is affected by edge proximity. We measured pH(KCl) and exchangeable K, Ca, Mg and Al concentrations of the mineral topsoil (0-30 cm) from the exposed edge to the interior (128 m from the edge) of three deciduous and four coniferous forest stands. From the front edge to the interior of the deciduous stands, the pH(KCl) values decreased at 0-5 cm soil depth (from 3.07 to 2.98) but increased at 5-10 cm (from 3.26 to 3.32) and 10-30 cm (from 3.48 to 3.75) depth. In the coniferous stands, pH(KCl) values declined from edge to interior at all soil depths, i.e. from 3.10 to 2.89, from 3.26 to 3.06 and from 3.54 to 3.31 at 0-5, 5-10 and 10-30 cm, respectively. The concentrations of exchangeable cations decreased from edge to interior, with larger differences in the coniferous (of up to 265 %) than in the deciduous stands (up to 99 %). At forest edges, enhanced soil acidification due to higher potentially acidifying deposition could be counteracted in the upper mineral soil by higher base cation throughfall and litterfall, faster litter decomposition, higher soil organic matter content, lower nitrate leaching from the soil and/or lime fertiliser drift. Nonetheless, deeper in the soil of the deciduous stands, these buffer processes seem unable to counteract soil acidification due to potentially acidifying deposition at the edges. Edge effects on soil acidity are important since they can translate into effects on plant communities, soil biota, nitrogen cycling and carbon sequestration.
Keywords
Edge effect, Forest edge, ATMOSPHERIC DEPOSITION, NITROGEN DEPOSITION, Soil acidification, pH(KCl), Deciduous, Coniferous, THROUGHFALL DEPOSITION, CONIFEROUS FOREST, TEMPERATE FORESTS, ACIDIC DEPOSITION, MINERAL TOPSOIL, NORTH BELGIUM, COMMON GARDEN, CORSICAN PINE

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MLA
Wuyts, Karen, et al. “Edge Effects on Soil Acidification in Forests on Sandy Soils under High Deposition Load.” WATER AIR AND SOIL POLLUTION, vol. 224, no. 6, 2013, doi:10.1007/s11270-013-1545-x.
APA
Wuyts, K., De Schrijver, A., Staelens, J., & Verheyen, K. (2013). Edge effects on soil acidification in forests on sandy soils under high deposition load. WATER AIR AND SOIL POLLUTION, 224(6). https://doi.org/10.1007/s11270-013-1545-x
Chicago author-date
Wuyts, Karen, An De Schrijver, Jeroen Staelens, and Kris Verheyen. 2013. “Edge Effects on Soil Acidification in Forests on Sandy Soils under High Deposition Load.” WATER AIR AND SOIL POLLUTION 224 (6). https://doi.org/10.1007/s11270-013-1545-x.
Chicago author-date (all authors)
Wuyts, Karen, An De Schrijver, Jeroen Staelens, and Kris Verheyen. 2013. “Edge Effects on Soil Acidification in Forests on Sandy Soils under High Deposition Load.” WATER AIR AND SOIL POLLUTION 224 (6). doi:10.1007/s11270-013-1545-x.
Vancouver
1.
Wuyts K, De Schrijver A, Staelens J, Verheyen K. Edge effects on soil acidification in forests on sandy soils under high deposition load. WATER AIR AND SOIL POLLUTION. 2013;224(6).
IEEE
[1]
K. Wuyts, A. De Schrijver, J. Staelens, and K. Verheyen, “Edge effects on soil acidification in forests on sandy soils under high deposition load,” WATER AIR AND SOIL POLLUTION, vol. 224, no. 6, 2013.
@article{4127814,
  abstract     = {{This study investigated how forest soil acidification is affected by edge proximity. We measured pH(KCl) and exchangeable K, Ca, Mg and Al concentrations of the mineral topsoil (0-30 cm) from the exposed edge to the interior (128 m from the edge) of three deciduous and four coniferous forest stands. From the front edge to the interior of the deciduous stands, the pH(KCl) values decreased at 0-5 cm soil depth (from 3.07 to 2.98) but increased at 5-10 cm (from 3.26 to 3.32) and 10-30 cm (from 3.48 to 3.75) depth. In the coniferous stands, pH(KCl) values declined from edge to interior at all soil depths, i.e. from 3.10 to 2.89, from 3.26 to 3.06 and from 3.54 to 3.31 at 0-5, 5-10 and 10-30 cm, respectively. The concentrations of exchangeable cations decreased from edge to interior, with larger differences in the coniferous (of up to 265 %) than in the deciduous stands (up to 99 %). At forest edges, enhanced soil acidification due to higher potentially acidifying deposition could be counteracted in the upper mineral soil by higher base cation throughfall and litterfall, faster litter decomposition, higher soil organic matter content, lower nitrate leaching from the soil and/or lime fertiliser drift. Nonetheless, deeper in the soil of the deciduous stands, these buffer processes seem unable to counteract soil acidification due to potentially acidifying deposition at the edges. Edge effects on soil acidity are important since they can translate into effects on plant communities, soil biota, nitrogen cycling and carbon sequestration.}},
  articleno    = {{1545}},
  author       = {{Wuyts, Karen and De Schrijver, An and Staelens, Jeroen and Verheyen, Kris}},
  issn         = {{0049-6979}},
  journal      = {{WATER AIR AND SOIL POLLUTION}},
  keywords     = {{Edge effect,Forest edge,ATMOSPHERIC DEPOSITION,NITROGEN DEPOSITION,Soil acidification,pH(KCl),Deciduous,Coniferous,THROUGHFALL DEPOSITION,CONIFEROUS FOREST,TEMPERATE FORESTS,ACIDIC DEPOSITION,MINERAL TOPSOIL,NORTH BELGIUM,COMMON GARDEN,CORSICAN PINE}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{14}},
  title        = {{Edge effects on soil acidification in forests on sandy soils under high deposition load}},
  url          = {{http://doi.org/10.1007/s11270-013-1545-x}},
  volume       = {{224}},
  year         = {{2013}},
}

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