The need to disaggregate podzols and peaty podzols when assessing forest soil carbon stocks.

  • Michael A. Clancy Department of Life Sciences, University of Limerick, Limerick.
  • A. Jonay Jovani Sancho Department of Life Sciences, University of Limerick, Limerick.
  • Thomas Cummins UCD School of Agriculture and Food Science, University College Dublin, Dublin.
  • Kenneth A. Byrne Department of Life Sciences, University of Limerick, Limerick.
Keywords: Afforestation, soil organic carbon, bulk density, carbon emission factor.

Abstract

Inventories of forest soil carbon (C) stocks are necessary to determine spatial and temporal C stock changes and support climate change mitigation policy development. Afforested podzols and peaty podzols were sampled to measure bulk density (BD) and soil organic carbon (SOC) content with the aim of improving baseline soil C stock estimates for Irish forests. Podzols are not always distinguished from peaty podzols and both qualify as mineral soil types. Distinct differences in mean BD, SOC % and soil C stock values were found between sites with podzols and peaty podzols across the four depths sampled, i.e., 0-10, 10-20, 20-30, 30-40 cm. The estimated soil C stocks for the podzol sites ranged from 129-139 Mg C ha-1, while the peaty podzols had 229-385 Mg C ha-1. The major disparity in the soil C stocks implies the need to disaggregate podzols and peaty podzols in conducting soil C inventories, with the need for development of carbon emission factors for peaty podzols to reduce uncertainty in soil C stock estimates.
Published
2015-11-01
How to Cite
A. Clancy, M., Jovani Sancho, A. J., Cummins, T., & A. Byrne, K. (2015). The need to disaggregate podzols and peaty podzols when assessing forest soil carbon stocks. Irish Forestry. Retrieved from https://journal.societyofirishforesters.ie/index.php/forestry/article/view/10303
Section
Articles