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Impact of air-borne or canopy-derived dissolved organic carbon (DOC) on forest soil solution DOC in Flanders, Belgium

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@article{9f64812a4aab4a9a8caba3f98b151a82,
title = "Impact of air-borne or canopy-derived dissolved organic carbon (DOC) on forest soil solution DOC in Flanders, Belgium",
abstract = "Dissolved organic carbon (DOC) in the soil solution of forests originates from a number of biologically and/or biochemically mediated processes, including litter decomposition and leaching, soil organic matter mineralization, root exudation, mucilage and microbial activity. A variable amount of DOC reaches the forest floor through deposition, but limited information is available about its impact on soil solution DOC. In this study, trends and patterns of soil solution DOC were evaluated in relation to deposition of DOC over an 11-year period (2002e2012) at five ICP Forests intensive monitoring plots in Flanders, northern Belgium. Trend analysis over this period showed an increase of soil solution DOC concentrationsfor all observed depth intervals. Fluxes of DOC increased in the organic layer, but were nearly stable in the mineral soil. Annual leaching losses of DOC were higher in coniferous (55e61 kg C ha1) compared to deciduous plots (19e30 kg C ha1) but embody less than 0.05{\%} of total 1-m soil organic C stocks.Temporal deposition patterns could not explain the increasing trends of soil solution DOC concentrations.Deposition fluxes of DOC were strongly correlated with soil solution fluxes of DOC, but their seasonal peaks were not simultaneous, which confirmed that air-borne or canopy-derived DOC has a limited impact on soil solution DOC.",
author = "Arne Verstraeten and {De Vos}, Bruno and Johan Neirynck and Peter Roskams and Maarten Hens",
year = "2014",
doi = "10.1016/j.atmosenv.2013.10.058",
language = "English",
volume = "83",
pages = "155--165",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "Pergamon",

}

RIS

TY - JOUR

T1 - Impact of air-borne or canopy-derived dissolved organic carbon (DOC) on forest soil solution DOC in Flanders, Belgium

AU - Verstraeten, Arne

AU - De Vos, Bruno

AU - Neirynck, Johan

AU - Roskams, Peter

AU - Hens, Maarten

PY - 2014

Y1 - 2014

N2 - Dissolved organic carbon (DOC) in the soil solution of forests originates from a number of biologically and/or biochemically mediated processes, including litter decomposition and leaching, soil organic matter mineralization, root exudation, mucilage and microbial activity. A variable amount of DOC reaches the forest floor through deposition, but limited information is available about its impact on soil solution DOC. In this study, trends and patterns of soil solution DOC were evaluated in relation to deposition of DOC over an 11-year period (2002e2012) at five ICP Forests intensive monitoring plots in Flanders, northern Belgium. Trend analysis over this period showed an increase of soil solution DOC concentrationsfor all observed depth intervals. Fluxes of DOC increased in the organic layer, but were nearly stable in the mineral soil. Annual leaching losses of DOC were higher in coniferous (55e61 kg C ha1) compared to deciduous plots (19e30 kg C ha1) but embody less than 0.05% of total 1-m soil organic C stocks.Temporal deposition patterns could not explain the increasing trends of soil solution DOC concentrations.Deposition fluxes of DOC were strongly correlated with soil solution fluxes of DOC, but their seasonal peaks were not simultaneous, which confirmed that air-borne or canopy-derived DOC has a limited impact on soil solution DOC.

AB - Dissolved organic carbon (DOC) in the soil solution of forests originates from a number of biologically and/or biochemically mediated processes, including litter decomposition and leaching, soil organic matter mineralization, root exudation, mucilage and microbial activity. A variable amount of DOC reaches the forest floor through deposition, but limited information is available about its impact on soil solution DOC. In this study, trends and patterns of soil solution DOC were evaluated in relation to deposition of DOC over an 11-year period (2002e2012) at five ICP Forests intensive monitoring plots in Flanders, northern Belgium. Trend analysis over this period showed an increase of soil solution DOC concentrationsfor all observed depth intervals. Fluxes of DOC increased in the organic layer, but were nearly stable in the mineral soil. Annual leaching losses of DOC were higher in coniferous (55e61 kg C ha1) compared to deciduous plots (19e30 kg C ha1) but embody less than 0.05% of total 1-m soil organic C stocks.Temporal deposition patterns could not explain the increasing trends of soil solution DOC concentrations.Deposition fluxes of DOC were strongly correlated with soil solution fluxes of DOC, but their seasonal peaks were not simultaneous, which confirmed that air-borne or canopy-derived DOC has a limited impact on soil solution DOC.

U2 - 10.1016/j.atmosenv.2013.10.058

DO - 10.1016/j.atmosenv.2013.10.058

M3 - A1: Web of Science-article

VL - 83

SP - 155

EP - 165

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

ER -

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