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Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay

Changes in the hydrological conditions of coastal wetlands may potentially affect the role of wetlands in the methane (CH(4)) cycle. In this study, the CH(4) production potential and emissions from restored coastal reed wetlands at different water levels were examined in eastern China at a field sca...

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Autores principales: Shao, Xuexin, Sheng, Xuancai, Wu, Ming, Wu, Hao, Ning, Xiao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624591/
https://www.ncbi.nlm.nih.gov/pubmed/28968419
http://dx.doi.org/10.1371/journal.pone.0185709
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author Shao, Xuexin
Sheng, Xuancai
Wu, Ming
Wu, Hao
Ning, Xiao
author_facet Shao, Xuexin
Sheng, Xuancai
Wu, Ming
Wu, Hao
Ning, Xiao
author_sort Shao, Xuexin
collection PubMed
description Changes in the hydrological conditions of coastal wetlands may potentially affect the role of wetlands in the methane (CH(4)) cycle. In this study, the CH(4) production potential and emissions from restored coastal reed wetlands at different water levels were examined in eastern China at a field scale in two phenological seasons. Results showed that the total CH(4) flux from reeds at various water levels were positive, indicating that they were “sources” of CH(4). During the peak growing season, CH(4) flux from reeds was greater than that during the spring thaw. CH(4) flux from reeds in inundated conditions was greater than that in non-inundated conditions. The CH(4) production potential during the peak growing season was far greater than that during the spring thaw. However, the effect of water level on wetland CH(4) production potential differed among seasons. The correlations among CH(4) production potential, soil properties and CH(4) flux change at different water level. These results demonstrate that water level was related to CH(4) production and CH(4) flux. The growing season also plays a role in CH(4) fluxes. Controlling the hydrological environment in restored wetlands has important implications for the maintenance of their function as carbon sinks.
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spelling pubmed-56245912017-10-17 Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay Shao, Xuexin Sheng, Xuancai Wu, Ming Wu, Hao Ning, Xiao PLoS One Research Article Changes in the hydrological conditions of coastal wetlands may potentially affect the role of wetlands in the methane (CH(4)) cycle. In this study, the CH(4) production potential and emissions from restored coastal reed wetlands at different water levels were examined in eastern China at a field scale in two phenological seasons. Results showed that the total CH(4) flux from reeds at various water levels were positive, indicating that they were “sources” of CH(4). During the peak growing season, CH(4) flux from reeds was greater than that during the spring thaw. CH(4) flux from reeds in inundated conditions was greater than that in non-inundated conditions. The CH(4) production potential during the peak growing season was far greater than that during the spring thaw. However, the effect of water level on wetland CH(4) production potential differed among seasons. The correlations among CH(4) production potential, soil properties and CH(4) flux change at different water level. These results demonstrate that water level was related to CH(4) production and CH(4) flux. The growing season also plays a role in CH(4) fluxes. Controlling the hydrological environment in restored wetlands has important implications for the maintenance of their function as carbon sinks. Public Library of Science 2017-10-02 /pmc/articles/PMC5624591/ /pubmed/28968419 http://dx.doi.org/10.1371/journal.pone.0185709 Text en © 2017 Shao et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Shao, Xuexin
Sheng, Xuancai
Wu, Ming
Wu, Hao
Ning, Xiao
Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay
title Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay
title_full Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay
title_fullStr Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay
title_full_unstemmed Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay
title_short Methane production potential and emission at different water levels in the restored reed wetland of Hangzhou Bay
title_sort methane production potential and emission at different water levels in the restored reed wetland of hangzhou bay
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624591/
https://www.ncbi.nlm.nih.gov/pubmed/28968419
http://dx.doi.org/10.1371/journal.pone.0185709
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