@article{RN1328,
   author = {Berg, B. and Johansson, M. B. and Nilsson, A. and Gundersen, P. and Norell, L.},
   title = {Sequestration of carbon in the humus layer of Swedish forests - direct measurements},
   journal = {Canadian Journal of Forest Research},
   volume = {39},
   number = {5},
   pages = {962-975},
   note = {ISI Document Delivery No.: 468IN
Times Cited: 32
Cited Reference Count: 44
Berg, Bjorn Johansson, Maj-Britt Nilsson, Ake Gundersen, Per Norell, Lennart
Gundersen, Per/B-2192-2008; Johansson, Maj-Britt/F-3758-2010
Gundersen, Per/0000-0002-9199-4033;
"Incentivazione alla mobilita di studiosi stranieri e italiani residenti all' estero"
We are grateful to the critical and constructive comments of two anonymous referees. This work was carried out when Bjorn Berg was a guest scientist at the Bayreuth Institute of Terrestrial Ecology Research, Bayreuth, Germany, Forest & Landscape, University of Copenhagen, Denmark, the Department of Forest Ecology, University of Helsinki, Helsinki, Finland, and Dipartimento Biologia Strutturale e Funzionale, Universita Federico II, Napoli, Italy. The work by Bjorn Berg was financed by the program "Incentivazione alla mobilita di studiosi stranieri e italiani residenti all' estero".
34
1
40
Canadian science publishing
Ottawa
1208-6037},
   abstract = {To determine sequestration rates of carbon dioxide (CO2) we calculated the carbon (C) storage rate in humus layers of Swedish forests with Podsolic soils, which account for 14.2 x 10(6) ha of the 22.7 x 10(6) ha of forested land in Sweden. Our data set covered 41 years of humus inventories and mean humus layer thickness in 82 513 plots. We analysed three forest types: (i) all combinations of tree species, (ii) forests dominated (>70%) by Norway spruce (Picea abies (L.) Karst.), and (iii) forests dominated (>70%) by Scots pine (Pinus sylvestris L.). To relate changes in humus layer thickness to land area we used the intersections in 25 km x 25 km grids and used kriging interpolation, permitting calculations for each forest type. For each intersection mean humus thickness for each year was calculated and regressed against time to obtain the rate of change. This rate, humus bulk density, and humus C concentration were used to calculate sequestration rates. The mean sequestration rate was 251 kg C.ha(-1).year(-1), which is higher than theoretical values. The sequestration rate was positively related to temperature sum, albeit including effects of forest management. The pine-dominated forest type had a mean rate of 283 kg C.ha(-1).year(-1), and the spruce-dominated had a mean rate of 239 kg C.ha(-1).year(-1). Under similar site conditions, pine sequestered more C than spruce (difference of 71 kg C.ha(-1).year(-1); p < 0.0001), showing the importance of this type of ecosystem for C sequestration.},
   keywords = {soil carbon
nitrogen deposition
organic-matter
dynamics
sweden
rates
acidification
respiration
boreal
model
Forestry},
   ISSN = {0045-5067},
   DOI = {10.1139/x09-022},
   url = {<Go to ISI>://WOS:000267810800008},
   year = {2009},
   type = {Journal Article}
}

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B.","Nilsson, A.","Gundersen, P.","Norell, L."],"bibdata":{"bibtype":"article","type":"Journal Article","author":[{"propositions":[],"lastnames":["Berg"],"firstnames":["B."],"suffixes":[]},{"propositions":[],"lastnames":["Johansson"],"firstnames":["M.","B."],"suffixes":[]},{"propositions":[],"lastnames":["Nilsson"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Gundersen"],"firstnames":["P."],"suffixes":[]},{"propositions":[],"lastnames":["Norell"],"firstnames":["L."],"suffixes":[]}],"title":"Sequestration of carbon in the humus layer of Swedish forests - direct measurements","journal":"Canadian Journal of Forest Research","volume":"39","number":"5","pages":"962-975","note":"ISI Document Delivery No.: 468IN Times Cited: 32 Cited Reference Count: 44 Berg, Bjorn Johansson, Maj-Britt Nilsson, Ake Gundersen, Per Norell, Lennart Gundersen, Per/B-2192-2008; Johansson, Maj-Britt/F-3758-2010 Gundersen, Per/0000-0002-9199-4033; \"Incentivazione alla mobilita di studiosi stranieri e italiani residenti all' estero\" We are grateful to the critical and constructive comments of two anonymous referees. This work was carried out when Bjorn Berg was a guest scientist at the Bayreuth Institute of Terrestrial Ecology Research, Bayreuth, Germany, Forest & Landscape, University of Copenhagen, Denmark, the Department of Forest Ecology, University of Helsinki, Helsinki, Finland, and Dipartimento Biologia Strutturale e Funzionale, Universita Federico II, Napoli, Italy. The work by Bjorn Berg was financed by the program \"Incentivazione alla mobilita di studiosi stranieri e italiani residenti all' estero\". 34 1 40 Canadian science publishing Ottawa 1208-6037","abstract":"To determine sequestration rates of carbon dioxide (CO2) we calculated the carbon (C) storage rate in humus layers of Swedish forests with Podsolic soils, which account for 14.2 x 10(6) ha of the 22.7 x 10(6) ha of forested land in Sweden. Our data set covered 41 years of humus inventories and mean humus layer thickness in 82 513 plots. We analysed three forest types: (i) all combinations of tree species, (ii) forests dominated (>70%) by Norway spruce (Picea abies (L.) Karst.), and (iii) forests dominated (>70%) by Scots pine (Pinus sylvestris L.). To relate changes in humus layer thickness to land area we used the intersections in 25 km x 25 km grids and used kriging interpolation, permitting calculations for each forest type. For each intersection mean humus thickness for each year was calculated and regressed against time to obtain the rate of change. This rate, humus bulk density, and humus C concentration were used to calculate sequestration rates. The mean sequestration rate was 251 kg C.ha(-1).year(-1), which is higher than theoretical values. The sequestration rate was positively related to temperature sum, albeit including effects of forest management. The pine-dominated forest type had a mean rate of 283 kg C.ha(-1).year(-1), and the spruce-dominated had a mean rate of 239 kg C.ha(-1).year(-1). 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We analysed three forest types: (i) all combinations of tree species, (ii) forests dominated (>70%) by Norway spruce (Picea abies (L.) Karst.), and (iii) forests dominated (>70%) by Scots pine (Pinus sylvestris L.). To relate changes in humus layer thickness to land area we used the intersections in 25 km x 25 km grids and used kriging interpolation, permitting calculations for each forest type. For each intersection mean humus thickness for each year was calculated and regressed against time to obtain the rate of change. This rate, humus bulk density, and humus C concentration were used to calculate sequestration rates. The mean sequestration rate was 251 kg C.ha(-1).year(-1), which is higher than theoretical values. The sequestration rate was positively related to temperature sum, albeit including effects of forest management. The pine-dominated forest type had a mean rate of 283 kg C.ha(-1).year(-1), and the spruce-dominated had a mean rate of 239 kg C.ha(-1).year(-1). 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