A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra
We conducted a 14C pulse-labeling experiment under field conditions to estimate the contribution of recent photosynthates to methane (CH4) emission in arctic wet sedge tundra dominated by Carex aquatilis and Eriophorum angustifolium. The average CH4 emission rate from plant-soil mesocosms in this st...
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2002
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ftcdlib:oai:escholarship.org:ark:/13030/qt9zq6g6wg 2023-06-11T04:08:41+02:00 A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra King, JY Reeburgh, WS 173 - 180 2002-02-01 application/pdf https://escholarship.org/uc/item/9zq6g6wg unknown eScholarship, University of California qt9zq6g6wg https://escholarship.org/uc/item/9zq6g6wg CC-BY Soil Biology and Biochemistry, vol 34, iss 2 C-14 pulse labeling photosynthates methane emission arctic wet sedge tundra Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture article 2002 ftcdlib 2023-05-29T17:58:55Z We conducted a 14C pulse-labeling experiment under field conditions to estimate the contribution of recent photosynthates to methane (CH4) emission in arctic wet sedge tundra dominated by Carex aquatilis and Eriophorum angustifolium. The average CH4 emission rate from plant-soil mesocosms in this study was 0.45 g C m-2 d-1. Carbon assimilated by plants via photosynthesis during pulse-labeling turned over rapidly and appeared as emitted CH4 within 24 h. Integration of flux measurements made over a 2-week period shows that the contribution of recent photosynthates to mid-season CH4 emission is relatively low. Less than 1% of the 14C-labeled carbon dioxide taken up through photosynthesis was emitted as 14CH4 during this study. © 2002 Elsevier Science Ltd. All rights reserved. Article in Journal/Newspaper Arctic Carex aquatilis Eriophorum Tundra University of California: eScholarship Arctic |
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Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
C-14 pulse labeling photosynthates methane emission arctic wet sedge tundra Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture |
spellingShingle |
C-14 pulse labeling photosynthates methane emission arctic wet sedge tundra Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture King, JY Reeburgh, WS A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
topic_facet |
C-14 pulse labeling photosynthates methane emission arctic wet sedge tundra Environmental Sciences Biological Sciences Agricultural and Veterinary Sciences Agronomy & Agriculture |
description |
We conducted a 14C pulse-labeling experiment under field conditions to estimate the contribution of recent photosynthates to methane (CH4) emission in arctic wet sedge tundra dominated by Carex aquatilis and Eriophorum angustifolium. The average CH4 emission rate from plant-soil mesocosms in this study was 0.45 g C m-2 d-1. Carbon assimilated by plants via photosynthesis during pulse-labeling turned over rapidly and appeared as emitted CH4 within 24 h. Integration of flux measurements made over a 2-week period shows that the contribution of recent photosynthates to mid-season CH4 emission is relatively low. Less than 1% of the 14C-labeled carbon dioxide taken up through photosynthesis was emitted as 14CH4 during this study. © 2002 Elsevier Science Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
King, JY Reeburgh, WS |
author_facet |
King, JY Reeburgh, WS |
author_sort |
King, JY |
title |
A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
title_short |
A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
title_full |
A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
title_fullStr |
A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
title_full_unstemmed |
A pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
title_sort |
pulse-labeling experiment to determine the contribution of recent plant photosynthates to net methane emission in arctic wet sedge tundra |
publisher |
eScholarship, University of California |
publishDate |
2002 |
url |
https://escholarship.org/uc/item/9zq6g6wg |
op_coverage |
173 - 180 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Carex aquatilis Eriophorum Tundra |
genre_facet |
Arctic Carex aquatilis Eriophorum Tundra |
op_source |
Soil Biology and Biochemistry, vol 34, iss 2 |
op_relation |
qt9zq6g6wg https://escholarship.org/uc/item/9zq6g6wg |
op_rights |
CC-BY |
_version_ |
1768382111717261312 |