Carbon reservoirs in peatlands and forests in the boreal regions of Finland.

Kauppi, Pekka E.; Posch, Maximillian; Hänninen, Pekka; Henttonen, Helena M.; Ihalainen, Antti; Lappalainen, Eino; Starr, Michael; Tamminen, Pekka

doi:10.14214/sf.a8507

Cited by 57 publications

(33 citation statements)

References 21 publications

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“…Provided that litter input is estimated correctly, Yasso gives estimates for the amount of soil carbon and its development similar to measurements obtained at different forest sites in southern Finland [60], suggesting that Yasso may provide correct estimates for the carbon dynamics in these soils. In the present study, our modelcalculated nationwide estimate for the mean amount of soil carbon in the 1990s was 6.3 kg/m 2 , which is within the range of earlier measurement-based estimates varying from 6.2 to 7.2 kg/m 2 [22,38].…”

Section: Reliability Of the Resultssupporting

confidence: 86%

Carbon accumulation in Finland's forests 1922–2004 – an estimate obtained by combination of forest inventory data with modelling of biomass, litter and soil

Lehtonen²,

et al. 2006

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-Comparable regional scale estimates for the carbon balance of forests are needed for scientific and political purposes. We developed a method for deriving these estimates from readily available forest inventory data by using statistical biomass models and dynamic modelling of litter and soil. Here, we demonstrate this method and apply it to Finland's forests between 1922 and 2004. The method was reliable, since the results obtained were comparable to independent data. The amount of carbon stored in the forests increased by 29%, 79% of which was found in the biomass and 21% in the litter and soil. The carbon balance varied annually, depending on the climate and level of harvesting, with each of these factors having effects on the biomass differing from those on the litter and soil. Our results demonstrate the importance of accounting for all forest carbon pools to avoid misleading pictures of short-and long-term forest carbon balance.carbon inventory / forest biomass / greenhouse gas inventory / litter / soil modelling Résumé -Accumulation de carbone dans les forêts finlandaises entre 1922 et 2004, une estimation obtenue en combinant les données de l'inventaire forestier avec une modélisation de la biomasse de la litière et du sol. Une estimation comparable à l'échelle régionale du bilan de carbone des forêts était nécessaire pour des objectifs scientifiques et politiques. Nous avons développé une méthode pour déduire ces estimations de données facilement disponibles de l'inventaire forestier en utilisant des modèles statistique de la biomasse et une modélisation dynamique de la litière et du sol. Ici nous présentons cette méthode et l'appliquons aux forêts de Finlande entre 1922 et 2004. La méthode a été fiable, puisque les résultats obtenus ont été comparables à des données indépendantes. La quantité de carbone accumulée dans les forêts s'est accrue de 29 %,79 % de ce qui a été trouvé dans la biomasse et 21 % dans la litière et le sol. Le bilan de carbone varie annuellement, selon le climat et l'importance de la récolte, chacun de ces facteurs ayant des effets sur la biomasse différents de ceux qui agissent sur la litière et sur le sol. Nos résultats démontrent l'importance de comptabiliser tous les réservoirs de carbone en forêt pour éviter des images trompeuses du bilan de carbone des forêts à court et moyen terme.inventaire du carbone / biomasse forestière / inventaire des gaz à effet de serre / litière / sol

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Section: Reliability Of the Resultssupporting

confidence: 86%

Carbon accumulation in Finland's forests 1922–2004 – an estimate obtained by combination of forest inventory data with modelling of biomass, litter and soil

Lehtonen²,

et al. 2006

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“…Also included as non-forest types were grasslands, pasturelands, peatlands, and rangelands. Peatlands are a particularly significant ecosystem type in the boreal regions where edaphic conditions are characterized by a continuously high water table, resulting in the accumulation of organic matter (Kauppi et al 1997). …”

Section: Methodsmentioning

confidence: 99%

Estimating the terrestrial carbon pools of the former Soviet Union, conterminous U.S., and Brazil

Turner¹,

Winjum²,

Kolchugina³

et al. 1998

Clim. Res.

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Terrestrial-carbon (C) pool sizes are of interest in relation to quantifying current sources and sinks of C, and evaluating the possibilities for future C sequestration or release by the biosphere. In this study, the C pools in the terrestrial ecosystems of the former Soviet Union (SU,), conterminous United States (US,), and Brazil were estimated for a nominal 1990 base year. Data sources included recent vegetation maps, resource inventories (particularly for forests), and published values for C densities (mass per unit area). Methodology varied by nation depending upon data availability but generally consisted of identifying a suitable land cover classification system, quantifying the area of each land cover type using traditional mapping approaches or satellite remote sensing, and assigning a mean C density to each cover type with separation by phytomass, litter plus coarse woody debris, and soil. Total organic C for the 3 geographic areas was estimated at 839 Pg (Pg = g X 1015) C in 1990. 38% of a literature-based estimate of the global terrestrial-C pool on an area representing 28% of the world's lands (excluding Antarctica). The soil C pool was the largest component in the SU, (84 % of the total) and US, (76%) but not in Brazil (47 %). Correspondingly, the proportion as phytomass was greatest in Brazil (48%) compared to the SU, (10%) and US, (17%). The forest land cover class contained by far the largest proportion of C among the land cover classes except in the SU, where peatlands were dominant with 37 % of the total. The 2 largest C pools isolated in this study are potentially long-term sources of C to the atmosphere: soil C in peatlands of SU, (212 Pg) which may be lost via climate change, and phytomass C in the tropical-moist forests of Brazil (l05 Pg) which may be lost via deforestation.

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“…Published data were selected to represent habitats similar to those in the Öreälven catchment area, i.e., data pertaining to boreal landscapes from Sweden/Finland or, when possible, from the Öreälven catchment. The carbon pool in mires was derived from a study of peatlands and forests in boreal Finland (Kauppi et al, 1997), and represents the organic carbon content in peatlands deeper than 30 cm. The carbon pool of forests and clear-cut areas was estimated using data from northern Finland, with the carbon pool including vegetation, litter, and soil carbon (Karjalainen and Kellomäki, 1995).…”

Section: Calculationsmentioning

confidence: 99%