Carbon fluxes of China's coastal wetlands and impacts of reclamation and restoration

doi:10.1111/gcb.17280

	Carbon fluxes of China's coastal wetlands and impacts of reclamation and restoration
	Lu, Weizhi 1,2; Xiao, Jingfeng 3; Gao, Haiqiang 1,2; Jia, Qingyu 4; Li, Zhengjie 1,2; Liang, Jie 5; Xing, Qinghui 6; Mao, Dehua 7; Li, Hong 8,9; Chu, Xiaojing 10; Chen, Hui 11; Guo, Haiqiang 8,9; Han, Guangxuan10 ; Zhao, Bin 8,9; Chen, Luzhen 12; Lai, Derrick Y. F.13,14; Liu, Shuguang 1,2; Lin, Guanghui 5,15,16
发表期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
	2024-04-01
卷号	30 期号:4 页码:14
关键词	blue carbon carbon budget carbon dioxide flux coastal wetland land-use change reclamation restoration
DOI	10.1111/gcb.17280
通讯作者	Xiao, Jingfeng(j.xiao@unh.edu)
英文摘要	Coastal wetlands play an important role in regulating atmospheric carbon dioxide (CO2) concentrations and contribute significantly to climate change mitigation. However, climate change, reclamation, and restoration have been causing substantial changes in coastal wetland areas and carbon exchange in China during recent decades. Here we compiled a carbon flux database consisting of 15 coastal wetland sites to assess the magnitude, patterns, and drivers of carbon fluxes and to compare fluxes among contrasting natural, disturbed, and restored wetlands. The natural coastal wetlands have the average net ecosystem exchange of CO2 (NEE) of -577 g C m(-2) year(-1), with -821 g C m(-2) year(-1) for mangrove forests and -430 g C m(-2) year(-1) for salt marshes. There are pronounced latitudinal patterns for carbon dioxide exchange of natural coastal wetlands: NEE increased whereas gross primary production (GPP) and respiration of ecosystem decreased with increasing latitude. Distinct environmental factors drive annual variations of GPP between mangroves and salt marshes; temperature was the dominant controlling factor in salt marshes, while temperature, precipitation, and solar radiation were co-dominant in mangroves. Meanwhile, both anthropogenic reclamation and restoration had substantial effects on coastal wetland carbon fluxes, and the effect of the anthropogenic perturbation in mangroves was more extensive than that in salt marshes. Furthermore, from 1980 to 2020, anthropogenic reclamation of China's coastal wetlands caused a carbon loss of similar to 3720 Gg C, while the mangrove restoration project during the period of 2021-2025 may switch restored coastal wetlands from a carbon source to carbon sink with a net carbon gain of 73 Gg C. The comparison of carbon fluxes among these coastal wetlands can improve our understanding of how anthropogenic perturbation can affect the potentials of coastal blue carbon in China, which has implications for informing conservation and restoration strategies and efforts of coastal wetlands.
资助机构	Natural Science Foundation of Hunan Province ; Institute of Atmospheric Environment ; National Natural Science Foundation of China ; University of New Hampshire through Bridge Support ; US-China Carbon Consortium (USCCC)
收录类别	SCI
语种	英语
关键词[WOS]	ECOSYSTEM CO2 EXCHANGE ; TERRESTRIAL ECOSYSTEMS ; CLIMATE-CHANGE ; SEQUESTRATION ; TEMPERATURE ; STRATEGIES ; MANAGEMENT ; PATTERNS ; DIOXIDE ; DRIVERS
研究领域[WOS]	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS记录号	WOS:001201778500001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/35308
专题	中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Xiao, Jingfeng
作者单位	1.Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha, Peoples R China 2.Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South C, Changsha, Peoples R China 3.Univ New Hampshire, Earth Syst Res Ctr, Inst Study Earth Oceans & Space, Durham, NH 03824 USA 4.China Meteorol Adm, Inst Atmospher Environm, Shenyang, Peoples R China 5.Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China 6.Natl Marine Environm Monitoring Ctr, Key Lab Ecol Environm Coastal Areas, Dalian, Peoples R China 7.Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Changchun, Peoples R China 8.Fudan Univ, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Natl Observat & Res Stn Wetland Ecosyst Yangtze Es, Shanghai, Peoples R China 9.Fudan Univ, Inst Ecochongming IEC, Shanghai, Peoples R China 10.Chinese Acad Sci, Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China 11.Yangtze Univ, Coll Life Sci, Jingzhou, Peoples R China 12.Xiamen Univ, Coll Environm & Ecol, Key Lab, Minist Educ Coastal & Wetland Ecosyst, Xiamen, Peoples R China 13.Chinese Univ Hong Kong, Dept Geog & Resource Management, Shatin, Hong Kong, Peoples R China 14.Chinese Univ Hong Kong, Ctr Environm Policy & Resource Management, Shatin, Hong Kong, Peoples R China 15.Tsinghua Univ, Inst Ocean Engn, Shenzhen Int Grad Sch, Shenzhen, Peoples R China 16.Hainan Res Acad Environm Sci, Hainan Int Blue Carbon Res Ctr, Haikou, Peoples R China
推荐引用方式 GB/T 7714	Lu, Weizhi,Xiao, Jingfeng,Gao, Haiqiang,et al. Carbon fluxes of China's coastal wetlands and impacts of reclamation and restoration[J]. GLOBAL CHANGE BIOLOGY,2024,30(4):14.
APA	Lu, Weizhi.,Xiao, Jingfeng.,Gao, Haiqiang.,Jia, Qingyu.,Li, Zhengjie.,...&Lin, Guanghui.(2024).Carbon fluxes of China's coastal wetlands and impacts of reclamation and restoration.GLOBAL CHANGE BIOLOGY,30(4),14.
MLA	Lu, Weizhi,et al."Carbon fluxes of China's coastal wetlands and impacts of reclamation and restoration".GLOBAL CHANGE BIOLOGY 30.4(2024):14.