---
_id: '12245'
abstract:
- lang: eng
text: Rewetting of long-term drained fens often results in the formation of eutrophic
shallow lakes with an average water depth of less than 1 m. This is accompanied
by a fast vegetation shift from cultivated grasses via submerged hydrophytes to
helophytes. As a result of rapid plant dying and decomposition, these systems
are highly dynamic wetlands characterised by a high mobilisation of nutrients
and elevated emissions of CO2 and CH4. However, the impact of specific plant species
on these phenomena is not clear. Therefore we investigated the CO2 and CH4 production
due to the subaqueous decomposition of shoot biomass of five selected plant species
which represent different rewetting stages (Phalaris arundinacea, Ceratophyllum
demersum, Typha latifolia, Phragmites australis and Carex riparia) during a 154
day mesocosm study. Beside continuous gas flux measurements, we performed bulk
chemical analysis of plant tissue, including carbon, nitrogen, phosphorus and
plant polymer dynamics. Plant-specific mass losses after 154 days ranged from
25% (P. australis) to 64% (C. demersum). Substantial differences were found for
the CH4 production with highest values from decomposing C. demersum (0.4 g CH4
kg−1 dry mass day) that were about 70 times higher than CH4 production from C.
riparia. Thus, we found a strong divergence between mass loss of the litter and
methane production during decomposition. If C. demersum as a hydrophyte is included
in the statistical analysis solely nutrient contents (nitrogen and phosphorus)
explain varying greenhouse gas production of the different plant species while
lignin and polyphenols demonstrate no significant impact at all. Taking data of
annual biomass production as important carbon source for methanogens into account,
high CH4 emissions can be expected to last several decades as long as inundated
and nutrient-rich conditions prevail. Different restoration measures like water
level control, biomass extraction and top soil removal are discussed in the context
of mitigation of CH4 emissions from rewetted fens.
author:
- first_name: D.
full_name: Zak, D.
last_name: Zak
- first_name: H.
full_name: Reuter, H.
last_name: Reuter
- first_name: J.
full_name: Augustin, J.
last_name: Augustin
- first_name: Tom
full_name: Shatwell, Tom
id: '86424'
last_name: Shatwell
orcid: 0000-0002-4520-7916
- first_name: M.
full_name: Barth, M.
last_name: Barth
- first_name: J.
full_name: Gelbrecht, J.
last_name: Gelbrecht
- first_name: R. J.
full_name: McInnes, R. J.
last_name: McInnes
citation:
ama: Zak D, Reuter H, Augustin J, et al. Changes of the CO2 and CH4 production potential
of rewetted fens in the perspective of temporal vegetation shifts . Biogeosciences.
2015;12(8):2455-2468. doi:10.5194/bg-12-2455-2015
apa: Zak, D., Reuter, H., Augustin, J., Shatwell, T., Barth, M., Gelbrecht, J.,
& McInnes, R. J. (2015). Changes of the CO2 and CH4 production potential of
rewetted fens in the perspective of temporal vegetation shifts . Biogeosciences,
12(8), 2455–2468. https://doi.org/10.5194/bg-12-2455-2015
bjps: Zak D et al. (2015) Changes of the CO2 and CH4 Production Potential
of Rewetted Fens in the Perspective of Temporal Vegetation Shifts . Biogeosciences
12, 2455–2468.
chicago: 'Zak, D., H. Reuter, J. Augustin, Tom Shatwell, M. Barth, J. Gelbrecht,
and R. J. McInnes. “Changes of the CO2 and CH4 Production Potential of Rewetted
Fens in the Perspective of Temporal Vegetation Shifts .” Biogeosciences
12, no. 8 (2015): 2455–68. https://doi.org/10.5194/bg-12-2455-2015.'
chicago-de: 'Zak, D., H. Reuter, J. Augustin, Tom Shatwell, M. Barth, J. Gelbrecht
und R. J. McInnes. 2015. Changes of the CO2 and CH4 production potential of rewetted
fens in the perspective of temporal vegetation shifts . Biogeosciences
12, Nr. 8: 2455–2468. doi:10.5194/bg-12-2455-2015,
.'
din1505-2-1: 'Zak, D. ; Reuter,
H. ; Augustin, J. ; Shatwell, Tom ; Barth,
M. ; Gelbrecht, J. ; McInnes, R. J.: Changes of the CO2 and
CH4 production potential of rewetted fens in the perspective of temporal vegetation
shifts . In: Biogeosciences Bd. 12. Göttingen, Copernicus GmbH (2015),
Nr. 8, S. 2455–2468'
havard: D. Zak, H. Reuter, J. Augustin, T. Shatwell, M. Barth, J. Gelbrecht, R.J.
McInnes, Changes of the CO2 and CH4 production potential of rewetted fens in the
perspective of temporal vegetation shifts , Biogeosciences. 12 (2015) 2455–2468.
ieee: 'D. Zak et al., “Changes of the CO2 and CH4 production potential of
rewetted fens in the perspective of temporal vegetation shifts ,” Biogeosciences,
vol. 12, no. 8, pp. 2455–2468, 2015, doi: 10.5194/bg-12-2455-2015.'
mla: Zak, D., et al. “Changes of the CO2 and CH4 Production Potential of Rewetted
Fens in the Perspective of Temporal Vegetation Shifts .” Biogeosciences,
vol. 12, no. 8, 2015, pp. 2455–68, https://doi.org/10.5194/bg-12-2455-2015.
short: D. Zak, H. Reuter, J. Augustin, T. Shatwell, M. Barth, J. Gelbrecht, R.J.
McInnes, Biogeosciences 12 (2015) 2455–2468.
ufg: 'Zak, D. u. a.: Changes of the CO2 and CH4 production potential of rewetted
fens in the perspective of temporal vegetation shifts , in: Biogeosciences
12 (2015), H. 8, S. 2455–2468.'
van: Zak D, Reuter H, Augustin J, Shatwell T, Barth M, Gelbrecht J, et al. Changes
of the CO2 and CH4 production potential of rewetted fens in the perspective of
temporal vegetation shifts . Biogeosciences. 2015;12(8):2455–68.
date_created: 2024-12-08T20:39:32Z
date_updated: 2024-12-09T09:14:41Z
department:
- _id: DEP8022
doi: 10.5194/bg-12-2455-2015
extern: '1'
intvolume: ' 12'
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.5194/bg-12-2455-2015
oa: '1'
page: 2455-2468
place: Göttingen
publication: Biogeosciences
publication_identifier:
eissn:
- 1726-4189
issn:
- '1726-4170 '
publication_status: published
publisher: Copernicus GmbH
quality_controlled: '1'
status: public
title: 'Changes of the CO2 and CH4 production potential of rewetted fens in the perspective
of temporal vegetation shifts '
type: scientific_journal_article
user_id: '83781'
volume: 12
year: '2015'
...