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The full annual carbon balance of boreal forestsis highly sensitive to precipitation
Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU).
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL. Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Uppsala Centre for Sustainable Development, CSD Uppsala.
Department of Ecology, Swedish University of Agricultural Sciences (SLU).
Department of Earth Sciences, Gothenburg University.
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2014 (English)In: Environmental Science and Technology Letters, ISSN 2328-8930, Vol. 1, no 7, 315-319 p.Article in journal (Refereed) Published
Abstract [en]

The boreal forest carbon balance is predicted to be particularly sensitive to climate change. Carbon balance estimates of these biomes stem mainly from eddy-covariance measurements of net ecosystem exchange (NEE). However, a full net ecosystem carbon balance (NECB) must include the lateral carbon export (LCE) through discharge. We show that annual LCE at a boreal forest site ranged from 4 to 28%, averaging 11% (standard deviation of 8%), of annual NEE over 13 years. Annual LCE and NEE are strongly anticorrelated; years with weak NEE coincide with high LCE. The decreased NEE in response to increased precipitation is caused by a reduction in the amount of incoming radiation caused by clouds. If our finding is also valid for other sites, it implies that increased precipitation at high latitudes may shift forest NECB in large areas of the boreal biome. Our results call for future analysis of this dual effect of precipitation on NEE and LCE.

Place, publisher, year, edition, pages
2014. Vol. 1, no 7, 315-319 p.
National Category
Climate Research
Research subject
Earth Science with specialization in Environmental Analysis
Identifiers
URN: urn:nbn:se:uu:diva-227555DOI: 10.1021/ez500169jISI: 000350831300005OAI: oai:DiVA.org:uu-227555DiVA: diva2:730295
Funder
Swedish Research Council FormasSwedish Research CouncilThe Kempe Foundations
Available from: 2014-06-27 Created: 2014-06-27 Last updated: 2016-11-03Bibliographically approved

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Bishop, KevinWallin, Marcus B.

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CiteExportLink to record
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