Soil carbon stock increases in the organic layer of boreal middle-aged stands

Häkkinen, M.
January 2011
Biogeosciences Discussions;2011, Vol. 8 Issue 1, p1015
Academic Journal
Changes in the soil carbon stock can potentially have a large influence on global carbon balance between terrestrial ecosystems and atmosphere. Since carbon sequestration of forest soils is influenced by human activities, reporting of the soil carbon pool is a compulsory part of the national greenhouse gas (GHG) inventories. Various soil carbon models are applied in GHG inventories, however, the verification of model-based estimates is lacking. In general, the soil carbon models predict accumulation of soil carbon in the middle-aged stands, which is in good agreement with chronosequence studies and flux measurements of eddy sites, but they have not been widely tested 10 with repeated measurements of permanent plots. The objective of this study was to evaluate soil carbon changes in the organic layer of boreal middle-aged forest stands. Soil carbon changes on re-measured sites were analyzed by using soil survey data that was based on composite samples as a first measurement and by taking into account spatial variation on the basis of the second measurement. By utilizing earlier soil surveys, a long sampling interval, which helps detection of slow changes, could be readily available. The range of measured change in the soil organic layer varied from -260 to 1260 gm-2 over the study period of 16-19 years and 2±32 gm-2 per year, on average. The increase was significant in 6 out of the 38 plots from which data were available. Although the soil carbon change was difficult to detect at the plot scale, the overall increase measured across the middle-aged stands agrees with predictions of the commonly applied soil models. Further verification of the soil models is needed with larger datasets that cover wider geographical area and represent all age classes, especially young stands with potentially large soil carbon source.


Related Articles

  • Digital Mapping of Soil Organic Carbon Contents and Stocks in Denmark. Adhikari, Kabindra; Hartemink, Alfred E.; Minasny, Budiman; Bou Kheir, Rania; Greve, Mette B.; Greve, Mogens H. // PLoS ONE;Aug2014, Vol. 9 Issue 8, p1 

    Estimation of carbon contents and stocks are important for carbon sequestration, greenhouse gas emissions and national carbon balance inventories. For Denmark, we modeled the vertical distribution of soil organic carbon (SOC) and bulk density, and mapped its spatial distribution at five standard...

  • A Burning Interest in Boreal Forests: Researchers in Alaska Link Fires with Climate Change. Senkowsky, Sonya // BioScience;Nov2001, Vol. 51 Issue 11, p916 

    Discusses research on the impact of fires on boreal forests in Alaska. Emphasis on the uptake and release of greenhouse gases such as carbon dioxide; Questions regarding climate change and fires researchers are asking; Composition of the forest in Delta Junction, Alaska, which burned in the...

  • An evaluation of the century model to predict soil organic carbon: examples from Costa Rica and Canada. Oelbermann, Maren; Voroney, R. P. // Agroforestry Systems;May2011, Vol. 82 Issue 1, p37 

    Greater organic matter inputs in agroforestry systems contribute to the long-term storage of carbon (C) in the soil, and the use of simulation models provides an opportunity to evaluate the dynamics of the long-term trends of soil organic carbon (SOC) stocks in these systems. The objective of...

  • Sensitivity of Carbon Sequestration Costs to Economic and Biological Uncertainties. Capalbo, Susan M.; Antle, John M.; Mooney, Sian; Paustian, Keith // Environmental Management;Jan2004 Supplement 1, Vol. 33, pS238 

    Modifying current agricultural management practices as a means of sequestering carbon has been shown to be a relatively low cost way to offset greenhouse gas emissions. In this paper, we examine the sensitivity of the estimates of the amount of soil carbon sequestered and the costs of...

  • Effects of land-use-change scenarios on terrestrial carbon stocks in South Korea. Lee, Dong; Park, Chan; Tomlin, Dana // Landscape & Ecological Engineering;Jan2015, Vol. 11 Issue 1, p47 

    The amount of carbon stored in soil and vegetation varies according to land use. Land-use changes (LUCs) affect those carbon stocks. Changes in carbon stocks also affect greenhouse gas emissions. Predicting LUCs is therefore necessary to establish quantitative targets for carbon dioxide (CO)...

  • Changes in soil carbon flux and carbon stock over a rotation of poplar plantations in northwest China. Zhang, Jianbiao; Shangguan, Tieliang; Meng, Ziqiang // Ecological Research;Jan2011, Vol. 26 Issue 1, p153 

    Forest soil is a major component of terrestrial ecosystems for carbon sequestration and plays an important role in the global carbon cycle. Soil carbon flux and soil carbon pools were investigated in a poplar plantation chronosequence over a rotation in northwest China. Based on continuous field...

  • Causes of variation in mineral soil C content and turnover in differently managed beech dominated forests. Schöning, Ingo; Grüneberg, Erik; Sierra, Carlos; Hessenmöller, Dominik; Schrumpf, Marion; Weisser, Wolfgang; Schulze, Ernst-Detlef // Plant & Soil;Sep2013, Vol. 370 Issue 1/2, p625 

    Background and aims: Forest soils are important carbon stores and considered as net CO sinks over decadal to centennial time scales. Intensive forest management is thought to reduce the carbon sequestration potential of forest soils. Here we study the effects of decades of forest management (as...

  • Carbon losses from pyrolysed and original wood in a forest soil under natural and increased N deposition. Maestrini, B.; Abiven, S.; Singh, N.; Bird, J.; Torn, M. S.; Schmidt, M. W. I. // Biogeosciences;2014, Vol. 11 Issue 18, p5199 

    Pyrogenic organic matter (PyOM) plays an important role as a stable carbon (C) sink in the soils of terrestrial ecosystems. However, uncertainties remain about in situ turnover rates of fire-derived PyOM in soil, the main processes leading to PyOM-C and nitrogen (N) losses from the soil, and the...

  • Soils apart from equilibrium -- consequences for soil carbon balance modelling. Wutzler, T.; Reichstein, M. // Biogeosciences Discussions;2006, Vol. 3 Issue 5, p1679 

    Many projections of the soil carbon sink or source are based on kinetically defined carbon pool models. Parameters of these models are often determined in a way that the steady state of the model matches observed carbon stocks. The underlying simplifying assumption is that observed carbon stocks...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics