Heterogenous distribution and burial flux of black carbon in Chinese lakes and its global implication

Xi Zhang; Yasong Wang; Zicheng Wang; Meixun Zhao; Yin Fang; Su Ding; Wenjie Xiao; Chenghao Yu; Xuejun Wang; Yunping Xu

doi:10.1016/j.scitotenv.2023.167687

Heterogenous distribution and burial flux of black carbon in Chinese lakes and its global implication

Xi Zhang, Yasong Wang^*, Zicheng Wang, Meixun Zhao, Yin Fang, Su Ding, Wenjie Xiao, Chenghao Yu, Xuejun Wang, Yunping Xu

^*Kontaktforfatter

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

Abstract

Black carbon (BC) plays a crucial role in global carbon cycle and climate change. However, its source and burial flux in environments are not well constrained. Here, we investigated surface sediments from 22 Chinese lakes across wide geographical areas and different socioeconomic status. The BC content accounts for 0.09–10.5 % of total organic carbon (TOC), and its average ¹⁴C age is older than that of TOC by 1640 years. The application of δ¹³C-based MixSIAR model shows that the contribution of fossil fuel combustion is highest in the most developed Eastern China (85.7 %) and lowest in the rural Qinghai-Tibetan Plateau (51.4 %), which is corroborated by the results from ¹⁴C-based two endmember mixing model. The BC data from this study and literatures suggest that the current BC burial flux is 126.4 ± 15.8 Gg year⁻¹ in Chinese lakes, and approximately 2987 ± 1022 Gg year⁻¹ in global lakes. Globally, lakes accumulate 1.2 %–6.4 % of the total BC production and thus are an important and heterogenous BC sink.

Originalsprog	Engelsk
Artikelnummer	167687
Tidsskrift	Science of the Total Environment
Vol/bind	906
Antal sider	10
ISSN	0048-9697
DOI	https://doi.org/10.1016/j.scitotenv.2023.167687
Status	Udgivet - 1. jan. 2024

Bibliografisk note

Funding Information:
This work was funded by the Shanghai Science and Technology Commission ( 23230760300 ), the National Natural Science Foundation of China ( 42230412 ) and the Open Research Fund of State Key Laboratory of Estuarine and Coastal Research ( SKLEC-KF202108 ). We thank Hailong Zhang and Xiaoyan Ning for technical assistance. This is OUC-CAMS contribution #17.

Dokumenter og links

10.1016/j.scitotenv.2023.167687

SDU link

Tjek adgangen til materialet i Syddansk Universitetsbiblioteks søgemaskine

Citationsformater

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title = "Heterogenous distribution and burial flux of black carbon in Chinese lakes and its global implication",

abstract = "Black carbon (BC) plays a crucial role in global carbon cycle and climate change. However, its source and burial flux in environments are not well constrained. Here, we investigated surface sediments from 22 Chinese lakes across wide geographical areas and different socioeconomic status. The BC content accounts for 0.09–10.5 % of total organic carbon (TOC), and its average 14C age is older than that of TOC by 1640 years. The application of δ13C-based MixSIAR model shows that the contribution of fossil fuel combustion is highest in the most developed Eastern China (85.7 %) and lowest in the rural Qinghai-Tibetan Plateau (51.4 %), which is corroborated by the results from 14C-based two endmember mixing model. The BC data from this study and literatures suggest that the current BC burial flux is 126.4 ± 15.8 Gg year−1 in Chinese lakes, and approximately 2987 ± 1022 Gg year−1 in global lakes. Globally, lakes accumulate 1.2 %–6.4 % of the total BC production and thus are an important and heterogenous BC sink.",

keywords = "Black carbon, Burial flux, Carbon isotope, Chinese lakes, Radiocarbon age",

author = "Xi Zhang and Yasong Wang and Zicheng Wang and Meixun Zhao and Yin Fang and Su Ding and Wenjie Xiao and Chenghao Yu and Xuejun Wang and Yunping Xu",

note = "Funding Information: This work was funded by the Shanghai Science and Technology Commission ( 23230760300 ), the National Natural Science Foundation of China ( 42230412 ) and the Open Research Fund of State Key Laboratory of Estuarine and Coastal Research ( SKLEC-KF202108 ). We thank Hailong Zhang and Xiaoyan Ning for technical assistance. This is OUC-CAMS contribution #17. ",

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TY - JOUR

T1 - Heterogenous distribution and burial flux of black carbon in Chinese lakes and its global implication

AU - Zhang, Xi

AU - Wang, Yasong

AU - Wang, Zicheng

AU - Zhao, Meixun

AU - Fang, Yin

AU - Ding, Su

AU - Xiao, Wenjie

AU - Yu, Chenghao

AU - Wang, Xuejun

AU - Xu, Yunping

N1 - Funding Information: This work was funded by the Shanghai Science and Technology Commission ( 23230760300 ), the National Natural Science Foundation of China ( 42230412 ) and the Open Research Fund of State Key Laboratory of Estuarine and Coastal Research ( SKLEC-KF202108 ). We thank Hailong Zhang and Xiaoyan Ning for technical assistance. This is OUC-CAMS contribution #17.

PY - 2024/1/1

Y1 - 2024/1/1

N2 - Black carbon (BC) plays a crucial role in global carbon cycle and climate change. However, its source and burial flux in environments are not well constrained. Here, we investigated surface sediments from 22 Chinese lakes across wide geographical areas and different socioeconomic status. The BC content accounts for 0.09–10.5 % of total organic carbon (TOC), and its average 14C age is older than that of TOC by 1640 years. The application of δ13C-based MixSIAR model shows that the contribution of fossil fuel combustion is highest in the most developed Eastern China (85.7 %) and lowest in the rural Qinghai-Tibetan Plateau (51.4 %), which is corroborated by the results from 14C-based two endmember mixing model. The BC data from this study and literatures suggest that the current BC burial flux is 126.4 ± 15.8 Gg year−1 in Chinese lakes, and approximately 2987 ± 1022 Gg year−1 in global lakes. Globally, lakes accumulate 1.2 %–6.4 % of the total BC production and thus are an important and heterogenous BC sink.

AB - Black carbon (BC) plays a crucial role in global carbon cycle and climate change. However, its source and burial flux in environments are not well constrained. Here, we investigated surface sediments from 22 Chinese lakes across wide geographical areas and different socioeconomic status. The BC content accounts for 0.09–10.5 % of total organic carbon (TOC), and its average 14C age is older than that of TOC by 1640 years. The application of δ13C-based MixSIAR model shows that the contribution of fossil fuel combustion is highest in the most developed Eastern China (85.7 %) and lowest in the rural Qinghai-Tibetan Plateau (51.4 %), which is corroborated by the results from 14C-based two endmember mixing model. The BC data from this study and literatures suggest that the current BC burial flux is 126.4 ± 15.8 Gg year−1 in Chinese lakes, and approximately 2987 ± 1022 Gg year−1 in global lakes. Globally, lakes accumulate 1.2 %–6.4 % of the total BC production and thus are an important and heterogenous BC sink.

KW - Black carbon

KW - Burial flux

KW - Carbon isotope

KW - Chinese lakes

KW - Radiocarbon age

U2 - 10.1016/j.scitotenv.2023.167687

DO - 10.1016/j.scitotenv.2023.167687

M3 - Journal article

C2 - 37827317

AN - SCOPUS:85173612273

SN - 0048-9697

VL - 906

JO - Science of the Total Environment

JF - Science of the Total Environment

M1 - 167687

ER -

Heterogenous distribution and burial flux of black carbon in Chinese lakes and its global implication

Abstract

Bibliografisk note

Dokumenter og links

SDU link

Fingeraftryk

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