NDLI: Plant species from mesotrophic wetlands cause relatively high methane emissions from peat soil

Content Provider	Springer Nature Link
Author	Koelbener, Albert Ström, Lena Edwards, Peter J. Olde Venterink, Harry
Copyright Year	2009
Abstract	Plants can influence methane emissions from wetland ecosystems by altering its production, consumption and transport in the soil. The aim of this study was to investigate how eight vascular plant species from mesotrophic to eutrophic wetlands vary in their influence on CH$_{4}$ emissions from peat cores, under low and high N supply. Additionally, we measured the production of low-molecular-weight organic acids (LOA) by the same species (also at low and high N supply), because LOA form a substrate for methanogenesis. There were considerable differences among species in their effects upon rates of CH$_{4}$ emission. Six of the species (Eriophorum latifolium Hoppe, Potentilla palustris (L.) Scop., Anthoxanthum odoratum (L.) s. str., Carex rostrata Stokes, Carex elata All., Carex acutiformis Ehrh.) increased CH$_{4}$ emissions up to five times compared to control peat cores without plants, whereas two species (Phalaris arundinacea L., Phragmites australis (Cav.) Trin. ex Steud.) had no effect. There was a weak negative correlation between plant biomass and CH$_{4}$ emission. N addition had no significant general effect upon CH$_{4}$ emission. LOA production varied considerably among species, and tended to be highest for species from mesotrophic habitats. LOA production was stimulated by N addition. We conclude that some species from mesotrophic wetlands tend to cause higher CH$_{4}$ emissions than species from eutrophic wetlands. This pattern, which contradicts what is often mentioned in literature, may be explained by the higher LOA production rates of species adapted to less productive habitats.
Starting Page	147
Ending Page	158
Page Count	12
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	326
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-04-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adaptation Biomass Ecological traits Greenhouse gas Nitrogen Organic acids Peat Root exudation Vascular plants Ecology Plant Physiology Soil Science & Conservation Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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