Black Carbon Contributes Substantially to Allochthonous Carbon Storage in Deltaic Vegetated Coastal Habitats
Li, Yuan1,2,3; Fu, Chuancheng4; Zeng, Lin5; Zhou, Qian6; Zhang, Haibo7; Tu, Chen1,2,3; Li, Lianzhen1,2,3; Luo, Yongming1,2,3,4
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
2021-05-04
Volume55Issue:9Pages:6495-6504
DOI10.1021/acs.est.1c00636
Corresponding AuthorLuo, Yongming(ymluo@issas.ac.cn)
AbstractVegetated coastal habitats (VCHs) rank among the most intense carbon sinks in natural ecosystems, playing an important role in the global carbon cycle. A significant part of the organic carbon (OC) they store may be allochthonous OC that has been sequestered elsewhere. Yet, the compositions of allochthonous OC are largely unknown. Here, we present concentrations and carbon isotopic (C-13 and C-14) compositions and accumulation rates of carbon in the VCHs from major temperate-subtropical deltas of China: Yellow, Yangtze, and Pearl river deltas. We find that black carbon (BC) amounts to 9-25% of OC across sites. Temperate VCHs exhibit lower BC contents but higher BC contributions than subtropical VCHs. This seemingly counterintuitive result can be explained by increased accumulation of long-term, stable, allochthonous OC in temperate VCHs. BC in temperate VCHs contains 1.5-2 times more fossil BC than that in subtropical VCHs in the 1 m depth soil, which is likely influenced by atmospheric input and the aging effect. We estimate an accumulation rate of BC in China's VCHs of 33.1 +/- 14.5 g m(-2) year(-1), acting as a hotspot for BC burial. These results point to a substantial and hitherto unquantified contribution of BC components to blue carbon storage, as well as the VCHs to global BC storage. Preservation of this old-aged, stable OC implies an important ecosystem service of the VCHs for climate change mitigation.
Funding OrganizationNational Natural Science Foundation of China
Indexed BySCI
Language英语
WOS KeywordORGANIC-CARBON ; SURFACE SEDIMENTS ; SEAGRASS CARBON ; CHINA ; SOILS ; MARINE ; MOBILIZATION ; CHARCOAL ; WETLANDS ; LOSSES
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS IDWOS:000648515400087
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/29365
Collection中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorLuo, Yongming
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China
5.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China
6.Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, Peoples R China
7.Zhejiang Agr & Forestry Univ, Sch Environm & Resource Sci, Key Lab Soil Contaminat Bioremediat Zhejiang Prov, Hangzhou 311300, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuan,Fu, Chuancheng,Zeng, Lin,et al. Black Carbon Contributes Substantially to Allochthonous Carbon Storage in Deltaic Vegetated Coastal Habitats[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021,55(9):6495-6504.
APA Li, Yuan.,Fu, Chuancheng.,Zeng, Lin.,Zhou, Qian.,Zhang, Haibo.,...&Luo, Yongming.(2021).Black Carbon Contributes Substantially to Allochthonous Carbon Storage in Deltaic Vegetated Coastal Habitats.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(9),6495-6504.
MLA Li, Yuan,et al."Black Carbon Contributes Substantially to Allochthonous Carbon Storage in Deltaic Vegetated Coastal Habitats".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.9(2021):6495-6504.
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