Current status of greenhouse gas emissions from aquaculture in China  

作　　者：Congjun Xu Guohuan Su Kangshun Zhao Xiaoqi Xu Ziqi Li Qiang Hu Ying Xue Jun Xu 

机构地区：[1]Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [2]University of Chinese Academy of Sciences,Beijing,100049,China [3]Center for Advanced Systems Understanding(CASUS),Gorlitz,Germany [4]Helmholtz-Zentrum Dresden-Rossendorf(HZDR),Dresden,Germany [5]Bren School of Environmental Science&Management,University of California,Santa Barbara,Santa Barbara,CA,USA [6]College of Fisheries and Life Science,Dalian Ocean University,Dalian,116000,China [7]Center for Microalgal Biotechnology and Biofuels,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [8]Institute for Advanced Study,Shenzhen University,Shenzhen,518060,China [9]Key Laboratory for Algal Biology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [10]State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [11]Laboratory of Fisheries Ecosystem Monitoring and Assessment,College of Fisheries,Ocean University of China,Qingdao,266003,China [12]Field Observation and Research Station of Haizhou Bay Fishery Ecosystem(Ocean University of China),Ministry of Education,Qingdao,266003,China

出　　处：《Water Biology and Security》2022年第3期10-17,共8页水生生物与安全（英文）

基　　金：supported by Basic and Applied Basic Research Foundation of Guangdong Province,China(No.2019B1515120065);the National Key R&D Program of China(Grant No.2018YFD0900904);INTERNATIONAL COOPERATION Project of the Chinese Academy of Sciences(Grant No.152342KYSB20190025);the National Natural Science Foundation of China of China(Grant No.31872687);This work was also partially funded by the Center of Advanced Systems Understanding(CASUS),which is financed by Germany's Federal Ministry of Education and Research(BMBF)and by the Saxon Ministry for Science,Culture and Tourism(SMWK)within the budget approved by the Saxon State Parliament.

摘　　要：Aquaculture and mariculture are becoming an increasingly important source of food supply in many countries and regions.However,with the expansion of aquaculture and mariculture comes increasing emissions of greenhouse gases(GHG)which contribute to global warming and climate change.China leads the world in aquaculture and mariculture production,but there are no studies that systematically assess China's overall carbon footprint from these industries.This study quantified GHG emissions from aquaculture and mariculture by four source phases(feed,energy use,nitrous oxide and fertilizers),and then analyzed the carbon footprint of each of these phases for GHG production of nine major species groups over the past ten years to show the spatial distribution of GHG emissions from aquaculture and mariculture in China.Our results showed that the production of feed materials contributed most to the GHG emissions and found that crop energy use,crop land use changes(LUC),fertilizer production,crop nitrous oxide production and rice methane production were the main sources of feed emissions.The total GHG emissions of the nine species groups were 112 Mt(10^(9) kg)CO_(2)e,the nine species accounting for approximately 86%of aquaculture and mariculture production.GHG emissions of cyprinids had the highest contribution at 47%.Spatial analysis based on our study showed Guangdong,Hubei,Jiangsu and Shandong had the highest GHG emissions of all the provinces in this study,and they accounted for approximately 46%of all emissions.The regional Gross Domestic Product(GDP)was significantly positively correlated with GHG emissions in every province,with a correlation coefficient higher than 0.6.Our results showed for the first time the relationship between the relative production by species composition and spatial distribution of GHG emissions from aquaculture and mariculture in China.Our findings provide the scientific basis for reduction of GHG emissions within a broader context of expanding aquaculture in the future.

关 键 词：Greenhouse gas emissions AQUACULTURE MARICULTURE Species group FEED Carbon footprint Regional gross domestic product 

分 类 号：Q178.1[生物学—水生生物学]