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Carbon stock and density of northern boreal and temperate forests
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2014 (English)In: Global Ecology and Biogeography, ISSN 1466-822X, E-ISSN 1466-8238, Vol. 23, no 3, 297-310 p.Article in journal (Refereed) Published
Abstract [en]

AimTo infer a forest carbon density map at 0.01 degrees resolution from a radar remote sensing product for the estimation of carbon stocks in Northern Hemisphere boreal and temperate forests. LocationThe study area extends from 30 degrees N to 80 degrees N, covering three forest biomes - temperate broadleaf and mixed forests (TBMF), temperate conifer forests (TCF) and boreal forests (BFT) - over three continents (North America, Europe and Asia). MethodsThis study is based on a recently available growing stock volume (GSV) product retrieved from synthetic aperture radar data. Forest biomass and spatially explicit uncertainty estimates were derived from the GSV using existing databases of wood density and allometric relationships between biomass compartments (stem, branches, roots, foliage). We tested the resultant map against inventory-based biomass data from Russia, Europe and the USA prior to making intercontinent and interbiome carbon stock comparisons. ResultsOur derived carbon density map agrees well with inventory data at regional scales (r(2)=0.70-0.90). While 40.715.7 petagram of carbon (PgC) are stored in BFT, TBMF and TCF contain 24.5 +/- 9.4PgC and 14.5 +/- 4.8 PgC, respectively. In terms of carbon density, we found 6.21 +/- 2.07kgC m(-2) retained in TCF and 5.80 +/- 2.21kgC m(-2) in TBMF, whereas BFT have a mean carbon density of 4.00 +/- 1.54kgC m(-2). Indications of a higher carbon density in Europe compared with the other continents across each of the three biomes could not be proved to be significant. Main conclusionsThe presented carbon density and corresponding uncertainty map give an insight into the spatial patterns of biomass and stand as a new benchmark to improve carbon cycle models and carbon monitoring systems. In total, we found 79.8 +/- 29.9PgC stored in northern boreal and temperate forests, with Asian BFT accounting for 22.1 +/- 8.3PgC.

Place, publisher, year, edition, pages
2014. Vol. 23, no 3, 297-310 p.
Keyword [en]
Boreal forest, carbon density map, carbon monitoring, forest biomass, forest carbon stocks, global carbon cycle, growing stock volume, SAR remote sensing, temperate forest
National Category
Ecology Environmental Sciences Physical Geography
URN: urn:nbn:se:su:diva-102465DOI: 10.1111/geb.12125ISI: 000331082100005OAI: diva2:710772


Available from: 2014-04-08 Created: 2014-04-07 Last updated: 2014-04-08Bibliographically approved

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Beer, Christian
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