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Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices
Agriculture, Ecosystems and Environment, Volume: 338, Start page: 108110
Swansea University Author:
Kam Tang
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©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)
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DOI (Published version): 10.1016/j.agee.2022.108110
Abstract
Aquaculture is one of the fastest growing food production sectors in China, but many of the small-hold operations are poorly assessed for their climate impact. We analyzed the literature data on CO2 and CH4 fluxes from various aquaculture systems in China. The mean fluxes varied from -382.45 to 551....
Published in: | Agriculture, Ecosystems and Environment |
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ISSN: | 0167-8809 0167-8809 |
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Elsevier BV
2022
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URI: | https://cronfa.swan.ac.uk/Record/cronfa60559 |
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v2 60559 2022-07-20 Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2022-07-20 BGPS Aquaculture is one of the fastest growing food production sectors in China, but many of the small-hold operations are poorly assessed for their climate impact. We analyzed the literature data on CO2 and CH4 fluxes from various aquaculture systems in China. The mean fluxes varied from -382.45 to 551.88 g CO2-C m-2 yr-1 and -0.03 to 565.09 g CH4-C m-2 yr-1. Aquaculture system reclaimed from mudflat had the highest CH4 emission (54.92 ± 21.00 g C m-2 yr-1) but lowest CO2 emission. Shrimp aquaculture and semi-intensive farming tended to yield higher CH4 emission. Small and shallow systems had significantly higher CO2 and CH4 emissions, with chlorophyll a and dissolved oxygen concentrations among the main environmental drivers. Management practice such as drainage, exposure and desilting during the non-farming period significantly decreased CH4 emission. We estimated that aquaculture systems in China emitted 181.66 Tg CO2-eq yr-1, enough to offset ~7% of the national terrestrial carbon sink, with most of the emission concentrated in coastal provinces and along the major rivers in the southeastern quadrant. This study highlights the need to account for carbon greenhouse gas emissions from aquaculture to improve the accuracy of the regional and national carbon budgets. Journal Article Agriculture, Ecosystems and Environment 338 108110 Elsevier BV 0167-8809 0167-8809 15 10 2022 2022-10-15 10.1016/j.agee.2022.108110 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Not Required This research was financially supported by the National Natural Science Foundation of China (Grant No. 41801070, 41671088, and 41730643), the Natural Science Foundation of Fujian Province, China (Grant No. 2020J01136, and 2018J01737), and Minjiang Scholar Programme. 2024-07-12T16:12:06.5149624 2022-07-20T14:11:40.0748659 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Yifei Zhang 1 Kam Tang 0000-0001-9427-9564 2 Ping Yang 3 Hong Yang 4 Chuan Tong 5 Changchun Song 6 Lishan Tan 7 Guanghui Zhao 8 Xudong Zhou 9 Dongyao Sun 10 60559__24675__d1abd37cd926444c9d6e2fa7e0694eee.pdf AGEE_20July2022_authorsfinal.pdf 2022-07-20T14:14:39.1551177 Output 3181599 application/pdf Accepted Manuscript true 2023-07-25T00:00:00.0000000 ©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 |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices |
spellingShingle |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices Kam Tang |
title_short |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices |
title_full |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices |
title_fullStr |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices |
title_full_unstemmed |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices |
title_sort |
Assessing carbon greenhouse gas emissions from aquaculture in China based on aquaculture system types, species, environmental conditions and management practices |
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69af43a3b9da24aef65c5d3a44956fe3 |
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69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang |
author |
Kam Tang |
author2 |
Yifei Zhang Kam Tang Ping Yang Hong Yang Chuan Tong Changchun Song Lishan Tan Guanghui Zhao Xudong Zhou Dongyao Sun |
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Journal article |
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Agriculture, Ecosystems and Environment |
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338 |
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Swansea University |
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10.1016/j.agee.2022.108110 |
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Elsevier BV |
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Aquaculture is one of the fastest growing food production sectors in China, but many of the small-hold operations are poorly assessed for their climate impact. We analyzed the literature data on CO2 and CH4 fluxes from various aquaculture systems in China. The mean fluxes varied from -382.45 to 551.88 g CO2-C m-2 yr-1 and -0.03 to 565.09 g CH4-C m-2 yr-1. Aquaculture system reclaimed from mudflat had the highest CH4 emission (54.92 ± 21.00 g C m-2 yr-1) but lowest CO2 emission. Shrimp aquaculture and semi-intensive farming tended to yield higher CH4 emission. Small and shallow systems had significantly higher CO2 and CH4 emissions, with chlorophyll a and dissolved oxygen concentrations among the main environmental drivers. Management practice such as drainage, exposure and desilting during the non-farming period significantly decreased CH4 emission. We estimated that aquaculture systems in China emitted 181.66 Tg CO2-eq yr-1, enough to offset ~7% of the national terrestrial carbon sink, with most of the emission concentrated in coastal provinces and along the major rivers in the southeastern quadrant. This study highlights the need to account for carbon greenhouse gas emissions from aquaculture to improve the accuracy of the regional and national carbon budgets. |
published_date |
2022-10-15T16:12:05Z |
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1804386566288703488 |
score |
11.021648 |