World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Contribution of Recent Plant Photosynthates of Eriophorum Vaginatum and Scheuchzeria Palustris to Methanogenesis and Ch4 Transport at a Boreal Mire: a 14C Pulse-labeling Study : Volume 8, Issue 3 (04/05/2011)

By Dorodnikov, M.

Click here to view

Book Id: WPLBN0004005852
Format Type: PDF Article :
File Size: Pages 31
Reproduction Date: 2015

Title: Contribution of Recent Plant Photosynthates of Eriophorum Vaginatum and Scheuchzeria Palustris to Methanogenesis and Ch4 Transport at a Boreal Mire: a 14C Pulse-labeling Study : Volume 8, Issue 3 (04/05/2011)  
Author: Dorodnikov, M.
Volume: Vol. 8, Issue 3
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Kuzyakov, Y., Dorodnikov, M., Wilmking, M., & Knorr, K. (2011). Contribution of Recent Plant Photosynthates of Eriophorum Vaginatum and Scheuchzeria Palustris to Methanogenesis and Ch4 Transport at a Boreal Mire: a 14C Pulse-labeling Study : Volume 8, Issue 3 (04/05/2011). Retrieved from http://www.worldebookfair.org/


Description
Description: Institute of Botany and Landscape Ecology, University of Greifswald, Grimmer Str. 88, 17487 Greifswald, Germany. Contribution of recent photosynthates to methanogenesis and plant-mediated methane (CH4) transport were studied on two dominating vascular plant species – Eriophorum vaginatum and Scheuchzeria palustris – at three microform types (hummocks, lawns and hollows) of a boreal natural minerogenic, oligotrophic fen in Eastern Finland. Measurements of total CH4 flux, isolation of shoots from entire peat and 14C-pulse labeling of mesocosms under controlled conditions allowed estimation of plant-mediated CH4 flux and contribution of recent (14C) photosynthates to total CH4. The obtained results showed (i) CH4 flux increases in the order E. hummocks ≤ E. lawns < S. hollows corresponding to the increasing water table level of the microforms as derived from in situ measurements. (ii) Plant-mediated CH4 flux accounted for 38, 31 and 51 % of total CH4 at E. hummocks, E. lawns and S. hollows, respectively. (iii) Contribution of recent photosynthates to methanogenesis accounted for 0.03 % for E. hummocks, 0.06 % for E. lawns and 0.13 % for S. hollows of assimilated 14C. Thus, S. palustris microsites are characterized by a higher efficiency for transporting CH4 from the peat column to the atmosphere when compared to E. vaginatum of drier lawns and hummocks. Contribution of recent plant photosynthates to methanogenesis was not depended on the amount of plant biomass: smaller S. palustris had higher 14CH4 as compared to larger E. vaginatum. Therefore, for the assessment of CH4 production and emission over meso- and macroscales as well as for the implication and development of C modeling of CH4 fluxes, it is necessary to account for plant species-specific processes including CH4 production, consumption and transportation and the attribution of those species to topographic microforms.

Summary
Contribution of recent plant photosynthates of Eriophorum vaginatum and Scheuchzeria palustris to methanogenesis and CH4 transport at a boreal mire: a 14C pulse-labeling study

Excerpt
Chanton, J. P. and Dacey, J. W. H.: Effects of vegetation on methane flux, reservoirs, and carbon isotopic composition, edited by: Sharkey, T. D., Holland, E. A., and Mooney, H. A.: Trace Gas Emissions by Plants, Academic Press, SanDiego, 65–92, 1991.; Chanton, J. P., Bauer, J. E., Glaser, P. A., Siegel, D. I., Kelley, C. A., Tyler, S. C., Romanowicz, E. H., and Lazrus, A.: Radiocarbon evidence for the substrates supporting methane formation within northern Minnesota peatlands, Geochim. Cosmochim. Ac., 59, 3663–3668, 1995.; Christensen, T. R., Panikov, N., Mastepanov, M., Joabsson, A., Stewart, A., Oquist, M., Sommerkorn, M., Reynaud, S., and Svensson, B.: Biotic controls on CO2 and CH4 exchange in wetlands – a closed environment study, Biogeochemistry, 64, 337–354, 2003.; Dacey, J. W. H., Drake, B. G., and Klug, M. J.: Stimulation of methane emission by carbon-dioxide enrichment of marsh vegetation, Nature, 370, 47–49, 1994.; Dannenberg, S. and Conrad, R.: Effect of rice plants on methane production and rhizospheric metabolism in paddy soil, Biogeochem., 45, 53–71, 1999.; ACIA author consortium: Arctic Climate Impact Assessment – Scienctific Report, Cambridge University Press, 2005.; Becker, T., Kutzbach, L., Forbrich, I., Schneider, J., Jager, D., Thees, B., and Wilmking, M.: Do we miss the hot spots? -� The use of very high resolution aerial photographs to quantify carbon fluxes in peatlands, Biogeosciences, 5, 1387–1393, doi:10.5194/bg-5-1387-2008, 2008.; Bouchard, V., Frey, S. D., Gilbert, J. M., and Reed, S. E.: Effects of macrophyte functional group richness on emergent freshwater wetland functions, Ecology, 88, 2903–2914, 2007.; Dalva, M., Moore, T. R., Arp, P., and Clair, T. A.: Methane and soil and plant community respiration from wetlands, Kejimkujik National Park, Nova Scotia: Measurements, predictions, and climatic change, J. Geophys. Res., 106(D3), 2955–2962, 2001.; Das, K. and Baruah, K. K.: Methane emission associated with anatomical and morphophysiological characteristics of rice (Oryza sativa) plant, Physiol. Plantarum, 134, 303–312, 2008.; Dorodnikov, M., Repo, M., Biasi, C., and Wilmking, M.: Isotopic evidence of the pathways of methane from porewater to atmosphere in a boreal peatland: effect of microtopography on methanogenesis, transport and oxidation, Boreal Environ. Res., under revision., 2011.; Forbrich, I., Kutzbach, L., Hormann, A., and Wilmking, M.: A comparison of linear and exponential regression for estimating diffusive CH4 fluxes by closed-chambers in peatlands, Soil Biol. Biochem., 42(3), 507–515, 2010.; Frenzel, P. and Rudolph, J.: Methane emission from a wetland plant: the role of CH4 oxidation in Eriophorum, Plant Soil, 202, 27–32, 1998.; Gavrichkova, O. and Kuzyakov, Y.: Respiration costs associated with nitrate reduction as estimated by 14CO2 pulse labeling of corn at various growth stages, Plant Soil, 329, 433–445, 2010.; Gažovié, M., Jager, D., Forbrich, I., Kutzbach, L., Wille, C., and Wimking, M.: Effects of water table on soil respiration have the decisive influence on carbon balance of a boreal peatland: When dry and wet matters? Ecology, submitted., 2011.; Gocke, M., Pustovoytov, K., and Kuzyakov, Y.: Effect of CO2 concentration on the initial recrystallization rate of pedogenic carbonate – Revealed by 14C and 13C labeling, Geoderma, 155, 351–358, 2010.; IPCC: Climate change 2001, 3rd assessment report, Intergovernmental Panel on Climate Change, Geneva, Switzerland, 2001.; Greenup, A. L., Bradford, M. A., McNamara, N. P., Ineson, P., and Lee, J. A.: The role of Eriophorum vaginatum in CH4 flux from an ombrotrophic peatland, Plant Soil, 227, 265–272, 2000

 

Click To View

Additional Books


  • Oxygen and Carbon Isotope Composition of... (by )
  • Quantification of Protein Biomass of Ind... (by )
  • A New European Plant-specific Emission I... (by )
  • The Role of Ocean Acidification in Emili... (by )
  • Impacts of Uv Radiation on Plankton Comm... (by )
  • Climatic Control on the Occurrence of Hi... (by )
  • Atmospheric Turbulence Triggers Pronounc... (by )
  • The Influence of Ocean Acidification on ... (by )
  • Subseafloor Basalts as Fungal Habitats :... (by )
  • Technical Note: Constraining Stable Carb... (by )
  • Characterization on the Rhizoremediation... (by )
  • Modelling the Effect of Soil Moisture an... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.