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Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study

Ping Yang Orcid Logo, Kam Tang Orcid Logo, Chuan Tong, Derrick Y.F. Lai Orcid Logo, Linhai Zhang, Xiao Lin, Hong Yang, Lishan Tan, Yifei Zhang, Yan Hong, Chen Tang, Yongxin Lin Orcid Logo

Water Research, Volume: 227, Start page: 119326

Swansea University Author: Kam Tang Orcid Logo

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DOI (Published version): 10.1016/j.watres.2022.119326

Abstract

Land reclamation is a major threat to the world's coastal wetlands, and it may influence the biogeochemical cycling of nitrogen in coastal regions. Conversion of coastal marshes into aquaculture ponds is common in the Asian Pacific region, but its impacts on the production and emission of nitro...

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Published in: Water Research
ISSN: 0043-1354
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61777
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In this study, we compared N2O emission from a brackish marsh and converted shrimp aquaculture ponds in the Shanyutan wetland, the Min River Estuary in Southeast China over a three-year period. We also measured sediment and porewater properties, relevant functional gene abundance, sediment N2O production potential and denitrification potential in the two habitats. Results indicated that the pond sediment had lower N-substrate availability, lower ammonia oxidation (AOA and comammox Nitrospira amoA), nitrite reduction (nirK and nirS) and nitrous oxide reduction (nosZ &#x2160; and nosZ &#x2161;) gene abundance and lower N2O production and denitrification potentials than in marsh sediments. Consequently, N2O emission fluxes from the aquaculture ponds (range 5.4&#x2013;251.8 &#x3BC;g m&#x2013;2 h&#x2013;1) were significantly lower than those from the marsh (12.6&#x2013;570.7 &#x3BC;g m&#x2013;2 h&#x2013;1). Overall, our results show that conversion from marsh to shrimp aquaculture ponds in the Shanyutan wetland may have diminished nutrient input from the catchment, impacted the N-cycling microbial community and lowered N2O production capacity of the sediment, leading to lower N2O emissions. Better post-harvesting management of pond water and sediment may further mitigate N2O emissions caused by the aquaculture operation.</abstract><type>Journal Article</type><journal>Water Research</journal><volume>227</volume><journalNumber/><paginationStart>119326</paginationStart><paginationEnd/><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>0043-1354</issnPrint><issnElectronic/><keywords>Nitrogen substrate; Nitrification and denitrification; Nitrous oxide (N2O) production; N2O fluxes; Coastal wetlands; Aquaculture reclamation</keywords><publishedDay>1</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2022</publishedYear><publishedDate>2022-12-01</publishedDate><doi>10.1016/j.watres.2022.119326</doi><url/><notes/><college>COLLEGE NANME</college><department>Biosciences</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>SBI</DepartmentCode><institution>Swansea University</institution><apcterm>Not Required</apcterm><funders>This research was supported by the National Natural Science Foundation of China (NSFC) (Grant No. 41801070, and No. 41671088), the National Natural Science Foundation of Fujian Province (Grant No. 2020J01136), the Minjiang Scholar Programme, the Research Grants Council of Hong Kong (CUHK 14122521, 14302420) and CUHK Direct Grant (145489489).</funders><projectreference/><lastEdited>2022-11-29T11:32:54.2267475</lastEdited><Created>2022-11-04T14:10:29.9857615</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Biosciences</level></path><authors><author><firstname>Ping</firstname><surname>Yang</surname><orcid>0000-0002-5212-6065</orcid><order>1</order></author><author><firstname>Kam</firstname><surname>Tang</surname><orcid>0000-0001-9427-9564</orcid><order>2</order></author><author><firstname>Chuan</firstname><surname>Tong</surname><order>3</order></author><author><firstname>Derrick Y.F.</firstname><surname>Lai</surname><orcid>0000-0002-1225-9904</orcid><order>4</order></author><author><firstname>Linhai</firstname><surname>Zhang</surname><order>5</order></author><author><firstname>Xiao</firstname><surname>Lin</surname><order>6</order></author><author><firstname>Hong</firstname><surname>Yang</surname><order>7</order></author><author><firstname>Lishan</firstname><surname>Tan</surname><order>8</order></author><author><firstname>Yifei</firstname><surname>Zhang</surname><order>9</order></author><author><firstname>Yan</firstname><surname>Hong</surname><order>10</order></author><author><firstname>Chen</firstname><surname>Tang</surname><order>11</order></author><author><firstname>Yongxin</firstname><surname>Lin</surname><orcid>0000-0002-0305-5766</orcid><order>12</order></author></authors><documents><document><filename>Under embargo</filename><originalFilename>Under embargo</originalFilename><uploaded>2022-11-04T14:12:44.4055320</uploaded><type>Output</type><contentLength>3112956</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><embargoDate>2023-11-06T00:00:00.0000000</embargoDate><documentNotes>&#xA9;2022 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND)</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by-nc-nd/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2022-11-29T11:32:54.2267475 v2 61777 2022-11-04 Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2022-11-04 SBI Land reclamation is a major threat to the world's coastal wetlands, and it may influence the biogeochemical cycling of nitrogen in coastal regions. Conversion of coastal marshes into aquaculture ponds is common in the Asian Pacific region, but its impacts on the production and emission of nitrogen greenhouse gases remain poorly understood. In this study, we compared N2O emission from a brackish marsh and converted shrimp aquaculture ponds in the Shanyutan wetland, the Min River Estuary in Southeast China over a three-year period. We also measured sediment and porewater properties, relevant functional gene abundance, sediment N2O production potential and denitrification potential in the two habitats. Results indicated that the pond sediment had lower N-substrate availability, lower ammonia oxidation (AOA and comammox Nitrospira amoA), nitrite reduction (nirK and nirS) and nitrous oxide reduction (nosZ Ⅰ and nosZ Ⅱ) gene abundance and lower N2O production and denitrification potentials than in marsh sediments. Consequently, N2O emission fluxes from the aquaculture ponds (range 5.4–251.8 μg m–2 h–1) were significantly lower than those from the marsh (12.6–570.7 μg m–2 h–1). Overall, our results show that conversion from marsh to shrimp aquaculture ponds in the Shanyutan wetland may have diminished nutrient input from the catchment, impacted the N-cycling microbial community and lowered N2O production capacity of the sediment, leading to lower N2O emissions. Better post-harvesting management of pond water and sediment may further mitigate N2O emissions caused by the aquaculture operation. Journal Article Water Research 227 119326 Elsevier BV 0043-1354 Nitrogen substrate; Nitrification and denitrification; Nitrous oxide (N2O) production; N2O fluxes; Coastal wetlands; Aquaculture reclamation 1 12 2022 2022-12-01 10.1016/j.watres.2022.119326 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University Not Required This research was supported by the National Natural Science Foundation of China (NSFC) (Grant No. 41801070, and No. 41671088), the National Natural Science Foundation of Fujian Province (Grant No. 2020J01136), the Minjiang Scholar Programme, the Research Grants Council of Hong Kong (CUHK 14122521, 14302420) and CUHK Direct Grant (145489489). 2022-11-29T11:32:54.2267475 2022-11-04T14:10:29.9857615 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Ping Yang 0000-0002-5212-6065 1 Kam Tang 0000-0001-9427-9564 2 Chuan Tong 3 Derrick Y.F. Lai 0000-0002-1225-9904 4 Linhai Zhang 5 Xiao Lin 6 Hong Yang 7 Lishan Tan 8 Yifei Zhang 9 Yan Hong 10 Chen Tang 11 Yongxin Lin 0000-0002-0305-5766 12 Under embargo Under embargo 2022-11-04T14:12:44.4055320 Output 3112956 application/pdf Accepted Manuscript true 2023-11-06T00:00:00.0000000 ©2022 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
spellingShingle Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
Kam Tang
title_short Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
title_full Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
title_fullStr Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
title_full_unstemmed Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
title_sort Conversion of coastal wetland to aquaculture ponds decreased N2O emission: Evidence from a multi-year field study
author_id_str_mv 69af43a3b9da24aef65c5d3a44956fe3
author_id_fullname_str_mv 69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang
author Kam Tang
author2 Ping Yang
Kam Tang
Chuan Tong
Derrick Y.F. Lai
Linhai Zhang
Xiao Lin
Hong Yang
Lishan Tan
Yifei Zhang
Yan Hong
Chen Tang
Yongxin Lin
format Journal article
container_title Water Research
container_volume 227
container_start_page 119326
publishDate 2022
institution Swansea University
issn 0043-1354
doi_str_mv 10.1016/j.watres.2022.119326
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 0
active_str 0
description Land reclamation is a major threat to the world's coastal wetlands, and it may influence the biogeochemical cycling of nitrogen in coastal regions. Conversion of coastal marshes into aquaculture ponds is common in the Asian Pacific region, but its impacts on the production and emission of nitrogen greenhouse gases remain poorly understood. In this study, we compared N2O emission from a brackish marsh and converted shrimp aquaculture ponds in the Shanyutan wetland, the Min River Estuary in Southeast China over a three-year period. We also measured sediment and porewater properties, relevant functional gene abundance, sediment N2O production potential and denitrification potential in the two habitats. Results indicated that the pond sediment had lower N-substrate availability, lower ammonia oxidation (AOA and comammox Nitrospira amoA), nitrite reduction (nirK and nirS) and nitrous oxide reduction (nosZ Ⅰ and nosZ Ⅱ) gene abundance and lower N2O production and denitrification potentials than in marsh sediments. Consequently, N2O emission fluxes from the aquaculture ponds (range 5.4–251.8 μg m–2 h–1) were significantly lower than those from the marsh (12.6–570.7 μg m–2 h–1). Overall, our results show that conversion from marsh to shrimp aquaculture ponds in the Shanyutan wetland may have diminished nutrient input from the catchment, impacted the N-cycling microbial community and lowered N2O production capacity of the sediment, leading to lower N2O emissions. Better post-harvesting management of pond water and sediment may further mitigate N2O emissions caused by the aquaculture operation.
published_date 2022-12-01T04:20:51Z
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score 11.012924

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