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Soil carbon pools in Swiss forests show legacy effects from historic forest litter raking
Research Unit Landscape Dynamics, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland.
Research Unit Landscape Dynamics, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland; Laboratoire des Sciences du Climat et l'Environement (LSCE), Gif sur Yvette, France.
Forest Ecology, Department of Environmental Sciences, Institute of Terrestrial Ecosystems, Swiss Federal Institute of Technology ETH, .
Forest Ecology, Department of Environmental Sciences, Institute of Terrestrial Ecosystems, Swiss Federal Institute of Technology ETH, .
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2013 (Engelska)Ingår i: Landscape Ecology, ISSN 0921-2973, E-ISSN 1572-9761, Vol. 28, nr 5, s. 835-846Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Globally, forest soils contain twice as much carbon as forest vegetation. Consequently, natural and anthropogenic disturbances affecting carbon accumulation in forest soils can alter regional to global carbon balance. In this study, we evaluate the effects of historic litter raking on soil carbon stocks, a former forest use which used to be widespread throughout Europe for centuries. We estimate, for Switzerland, the carbon sink potential in current forest soils due to recovery from past litter raking ('legacy effect'). The year 1650 was chosen as starting year for litter raking, with three different end years (1875/1925/1960) implemented for this forest use in the biogeochemical model LPJ-GUESS. The model was run for different agricultural and climatic zones separately. Number of cattle, grain production and the area of wet meadow have an impact on the specific demand for forest litter. The demand was consequently calculated based on historical statistical data on these factors. The results show soil carbon pools to be reduced by an average of 17 % after 310 years of litter raking and legacy effects were still visible 130 years after abandonment of this forest use (2 % average reduction). We estimate the remaining carbon sink potential in Swiss forest due to legacy effects from past litter raking to amount to 158,000 tC. Integrating historical data into biogeochemical models provides insight into the relevance of past land-use practices. Our study underlines the importance of considering potentially long-lasting effects of such land use practices for carbon accounting.

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3311 GZ DORDRECHT, NETHERLANDS, 2013. Vol. 28, nr 5, s. 835-846
Nyckelord [en]
Author Keywords:Historical ecology; Land-use legacy; Soil carbon pool; Biogeochemical modeling; Recovery time; Switzerland
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Klimatforskning
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URN: urn:nbn:se:umu:diva-100191DOI: 10.1007/s10980-012-9778-4OAI: oai:DiVA.org:umu-100191DiVA, id: diva2:790451
Tillgänglig från: 2015-02-24 Skapad: 2015-02-24 Senast uppdaterad: 2018-06-07Bibliografiskt granskad

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