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Original Research Papers

Large carbon-sink potential by Kyoto forests in Sweden—a case study on willow plantations

Authors:

Achim Grelle ,

Department of Ecology, Swedish University of Agricultural Sciences, SE
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Pär Aronsson,

Department of Crop Production Ecology, Swedish University of Agricultural Sciences, SE
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Per Weslien,

Department of Plant and Environmental Sciences, Gothenburg University, SE
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Leif Klemedtsson,

Department of Plant and Environmental Sciences, Gothenburg University, SE
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Anders Lindroth

Department of Physical Geography and Ecosystems Analysis, Lund University, SE
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Abstract

Fluxes of CO2 were measured in a 75-ha short-rotation willow plantation at Enkôping, central Sweden. The plantation was irrigated with wastewater for fertilization and water-filtering purposes. The harvested biomass was used locally for combined heat and power production. The plantation was a sink of ca. 8 tonnes C ha-1 during 2003, of which ca. 50% was estimated to be attributed to fertilization. Biomass increment by shoot growth was 5 tonnes C ha-1 during the same year. Belowground carbon allocation was estimated to 3 tonnes C ha-1 yr-1 by a model that relates carbon allocation to shoot growth. Thus, the ecosystem carbon balance was closed by these estimations. The carbon uptake by the willow plantation was 5.5 times as high compared to a normally managed spruce forest, but only half as high as from an experimental, well-managed willow plantation in the same region. This illustrates the vast potential of short-rotation willow plantations for CO2 uptake from the atmosphere.

How to Cite: Grelle, A., Aronsson, P., Weslien, P., Klemedtsson, L. and Lindroth, A., 2007. Large carbon-sink potential by Kyoto forests in Sweden—a case study on willow plantations. Tellus B: Chemical and Physical Meteorology, 59(5), pp.910–918. DOI: http://doi.org/10.1111/j.1600-0889.2007.00299.x
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  Published on 01 Jan 2007
 Accepted on 21 Jun 2007            Submitted on 15 Jan 2007

Reference

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