KNAW Repository

Methane emission from natural wetlands: interplay between emergent macrophytes and soil microbial processes. A mini review

Laanbroek, H.J. (2010) Methane emission from natural wetlands: interplay between emergent macrophytes and soil microbial processes. A mini review. Annals of Botany, 105, 141-153. ISSN 0305-7364.

[img]PDF - Published Version
Restricted to KNAW only

287Kb

Official URL: http://dx.doi.org/10.1093/aob/mcp201

Abstract

Background: According to the Intergovernmental Panel on Climate Change (IPCC) 2007, natural wetlands contribute 20–39 % to the global emission of methane. The range in the estimated percentage of the contribution of these systems to the total release of this greenhouse gas is large due to differences in the nature of the emitting vegetation including the soil microbiota that interfere with the production and consumption of methane. Scope: Methane is a dominant end-product of anaerobic mineralization processes. When all electron acceptors except carbon dioxide are used by the microbial community, methanogenesis is the ultimate pathway to mineralize organic carbon compounds. Emergent wetland plants play an important role in the emission of methane to the atmosphere. They produce the carbon necessary for the production of methane, but also facilitate the release of methane by the possession of a system of interconnected inter Conclusions: The role of the nitrogen cycle in repression of methane production is probably low. In contrast to wetlands particularly created for the purification of nitrogen-rich waste waters, concentrations of inorganic nitrogen compounds are low in the root zones in the growing season due to the nitrogen-consuming behaviour of the plant. Therefore, nitrate hardly competes with other electron acceptors for reduced organic compounds, and repression of methane oxidation by the presence of higher

Item Type:Article
Institutes:Nederlands Instituut voor Ecologie (NIOO)
ID Code:6448
Deposited On:01 Jul 2010 02:00
Last Modified:03 Sep 2014 12:31

Repository Staff Only: item control page