World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Biogeochemical Indicators of Peatland Degradation – a Case Study of a Temperate Bog in Northern Germany : Volume 11, Issue 12 (09/12/2014)

By Krüger, J. P.

Click here to view

Book Id: WPLBN0004004796
Format Type: PDF Article :
File Size: Pages 30
Reproduction Date: 2015

Title: Biogeochemical Indicators of Peatland Degradation – a Case Study of a Temperate Bog in Northern Germany : Volume 11, Issue 12 (09/12/2014)  
Author: Krüger, J. P.
Volume: Vol. 11, Issue 12
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Leifeld, J., Szidat, S., Glatzel, S., Krüger, J. P., & Alewell, C. (2014). Biogeochemical Indicators of Peatland Degradation – a Case Study of a Temperate Bog in Northern Germany : Volume 11, Issue 12 (09/12/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Environmental Geosciences, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland. Peatlands store a great proportion of the global soil carbon pool and can loose carbon via the atmosphere due to degradation. In Germany, most of the greenhouse gas emissions from organic soils are attributed to sites managed as grassland. Here we investigated a land-use gradient from near-natural wetland (NW) to an extensively managed (GE) to an intensively managed grassland site (GI), all formed in the same bog complex in northern Germany. Vertical depth profiles of δ13C, Δ15N, ash content, C/N ratio, bulk density, as well as radiocarbon ages were studied to identify peat degradation and to calculate carbon loss. At all sites, including the near-natural site, δ13C depth profiles indicate aerobic decomposition in the upper horizons. Depth profiles of Δ15Ndiffered significantly between sites with increasing Δ15N values in the top layers with increasing intensity of use, indicating that the peat is more decomposed. At both grassland sites, the ash content peaked within the first centimeter. In the near-natural site, ash contents were highest in 10–60 cm depth. This indicates that not only the managed grasslands, but also the near-natural site, is influenced by anthropogenic activities, most likely due to the drainage of the surrounding area. However, we found very young peat material in the first centimeter of the NW, indicating recent peat growth. The NW site accumulates carbon today even though it is and probably was influenced by anthropogenic activities in the past indicated by δ13C and ash content depth profiles. Based on the enrichment of ash content and changes in bulk density, we calculated carbon loss from these sites in retrograde. As expected land use intensification leads to a higher carbon loss which is supported by the higher peat ages at the intensive managed grassland site. All investigated biogeochemical parameters together indicate degradation of peat due to (i) conversion to grassland, (ii) historical drainage as well as recent development and (iii) land use intensification.

Summary
Biogeochemical indicators of peatland degradation – a case study of a temperate bog in northern Germany

Excerpt
Accoe, F., Boeckx, P., Van Cleemput, O., and Hofman, G.: Relationship between soil organic C degradability and the evolution of the delta13C signature in profiles under permanent grassland, Rapid Commun. Mass Sp., 17, 2591–2596, doi:10.1002/rcm.1202, 2003.; Ågren, G. I., Bosatta, E., and Balesdent, J.: Isotope discrimination during decomposition of organic matter: a theoretical analysis, Soil Sci. Soc. Am. J., 60, 1121–1126, 1996.; Ahrendt, R.: Die Entdeckung des Ahlenmoores – Aneignungen einer Landschaft in der ersten Hälfte des 20. Jahrhunderts, Beiträge zur Geschichte und Kultur des Elbe–Weser-Raumes, Verlag des Landschaftsverband der ehemaligen Herzogtümer Bremen und Verden, Stade, 2012.; Alewell, C., Giesler, R., Klaminder, J., Leifeld, J., and Rollog, M.: Stable carbon isotopes as indicators for environmental change in palsa peats, Biogeosciences, 8, 1769–1778, doi:10.5194/bg-8-1769-2011, 2011.; Asada, T., Warner, B., and Aravena, R.: Effects of the early stage of decomposition on change in carbon and nitrogen isotopes in Sphagnum litter, Journal of Plant Interactions 1, 229–237, doi:10.1080/17429140601056766, 2005a.; Clymo, R.: The limits to peat bog growth, Philos. T. Roy. Soc. B, 303, 605–654, 1984.; Asada, T., Warner, B. G., and Aravena, R.: Nitrogen isotope signature variability in plant species from open peatland, Aquat. Bot., 82, 297–307, doi:10.1016/j.aquabot.2005.05.005, 2005b.; Asman, W. A. H., Sutton, M. A., and Schjørring, J. K.: Ammonia: emission, atmospheric transport and deposition, New Phytol., 139, 27–48, 1998.; Bateman, A. S. and Kelly, S. D.: Fertilizer nitrogen isotope signatures, Isot. Environ. Healt. S., 43, 237–247, doi:10.1080/10256010701550732, 2007.; Becker-Heidmann, P. and Scharpenseel, H. W.: Thin layer delta13C and D14C monitoring of lessive soil profiles, Radiocarbon, 28, 383–390, 1986.; Beckmann, M. and Krahn, B.: Pflege- und Entwicklungskonzept Ahlen–Falkenberger Moor, edited by: BR Lüneburg, BUND-AGNL, Wagenfeld, 1991.; Beetz, S., Liebersbach, H., Glatzel, S., Jurasinski, G., Buczko, U., and Höper, H.: Effects of land use intensity on the full greenhouse gas balance in an Atlantic peat bog, Biogeosciences, 10, 1067–1082, doi:10.5194/bg-10-1067-2013, 2013.; Beller, J., Buchwald, C., and Döringshoff, J.: Pflege- und Entwicklungsplan Halemer See und Dahlemer See mit Randzonen. Endbericht, BR Lüneburg, A. G., Freiburg, 1994.; Benner, R., Fogel, M. L., Sprague, E. K., and Hodson, R. E.: Depletion of 13-C in lignin and its implications for stable carbon isotope studies, Nature, 329, 708–710, 1987.; Bragazza, L., Limpens, J., Gerdol, R., Grosvernier, P., Hajek, M., Hajek, T., Hajkova, P., Hansen, I., Iacumin, P., Kutnar, L., Rydin, H., and Tahvanainen, T.: Nitrogen concentration and delta15N signature of ombrotrophic Sphagnum mosses at different N deposition levels in Europe, Glob. Change Biol., 11, 106–114, doi:10.1111/j.1365-2486.2004.00886.x, 2005.; Bragazza, L., Iacumin, P., Siffi, C., and Gerdol, R.: Seasonal variation in nitrogen isotopic composition of bog plant litter during 3 years of field decomposition, Biol. Fert. Soils, 46, 877–881, doi:10.1007/s00374-010-0483-7, 2010.; Broder, T., Blodau, C., Biester, H., and Knorr, K. H.: Peat decomposition records in three pristine ombrotrophic bogs in southern Patagonia, Biogeosciences, 9, 1479–1491, doi:10.5194/bg-9-1479-

 

Click To View

Additional Books


  • Temperature-dependence of Planktonic Met... (by )
  • Characterizing Ecosystem-atmosphere Inte... (by )
  • Competition for Inorganic and Organic Fo... (by )
  • Contrasting Patterns of Litterfall Seaso... (by )
  • Seagrass Beds as Ocean Acidification Ref... (by )
  • MacRofauna Community Inside and Outside ... (by )
  • Fukushima-derived Radiocesium in Western... (by )
  • Mediterranean Basin-wide Correlations Be... (by )
  • The Impact of Oceanic Circulation and Ph... (by )
  • A Multi-species Coccolith Volume Respons... (by )
  • Hidden Biosphere in an Oxygen-deficient ... (by )
  • Short and Long-term Thermo-erosion of Ic... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library 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.