Aarhus University Seal / Aarhus Universitets segl

Erik Jeppesen

Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China. / Zhou, Yongqiang; Xiao, Qitao; Yao, Xiaolong; Zhang, Yunlin; Zhang, Mi; Shi, Kun; Lee, Xuhui; Podgorski, David C.; Qin, Boqiang; Spencer, Robert G. M.; Jeppesen, Erik.

In: Environmental Science & Technology, Vol. 52, No. 18, 18.09.2018, p. 10297-10306.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Zhou, Y, Xiao, Q, Yao, X, Zhang, Y, Zhang, M, Shi, K, Lee, X, Podgorski, DC, Qin, B, Spencer, RGM & Jeppesen, E 2018, 'Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China', Environmental Science & Technology, vol. 52, no. 18, pp. 10297-10306. https://doi.org/10.1021/acs.est.8b02163

APA

Zhou, Y., Xiao, Q., Yao, X., Zhang, Y., Zhang, M., Shi, K., Lee, X., Podgorski, D. C., Qin, B., Spencer, R. G. M., & Jeppesen, E. (2018). Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China. Environmental Science & Technology, 52(18), 10297-10306. https://doi.org/10.1021/acs.est.8b02163

CBE

Zhou Y, Xiao Q, Yao X, Zhang Y, Zhang M, Shi K, Lee X, Podgorski DC, Qin B, Spencer RGM, Jeppesen E. 2018. Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China. Environmental Science & Technology. 52(18):10297-10306. https://doi.org/10.1021/acs.est.8b02163

MLA

Vancouver

Zhou Y, Xiao Q, Yao X, Zhang Y, Zhang M, Shi K et al. Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China. Environmental Science & Technology. 2018 Sep 18;52(18):10297-10306. https://doi.org/10.1021/acs.est.8b02163

Author

Zhou, Yongqiang ; Xiao, Qitao ; Yao, Xiaolong ; Zhang, Yunlin ; Zhang, Mi ; Shi, Kun ; Lee, Xuhui ; Podgorski, David C. ; Qin, Boqiang ; Spencer, Robert G. M. ; Jeppesen, Erik. / Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China. In: Environmental Science & Technology. 2018 ; Vol. 52, No. 18. pp. 10297-10306.

Bibtex

@article{27f12be2fecf427d9d3a3dba3acd2aba,
title = "Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China",
abstract = "Inland waters play an important role for the storage of chromophoric dissolved organic matter (CDOM) and outgassing of methane (CH4). However, to date, linkages between the optical dynamics of CDOM and dissolved CH4 levels remain largely unknown. We used multi-year (2012-2014) seasonal data series collected from Lake Taihu and 51 connecting channels to investigate how CDOM optical dynamics may impact dissolved CH4 levels in the lake. High dissolved CH4 in the northwestern inflowing river mouths coincided with high underwater UV-vis light availability, dissolved organic carbon (DOC), chemical oxygen demand (COD), DOM aromaticity, terrestrial humic-rich fluorescence, in situ measured terrestrial CDOM, depleted dissolved oxygen (DO), stable isotopic delta H-2, and delta O-18 compared with other lake regions. Our results further revealed positive relationships between dissolved CH4 and CDOM absorption at 350 nm, i.e. a(350), COD, DOC, terrestrial humic-rich fluorophores, and DOM aromaticity, and negative relationships between dissolved CH4 and DO, delta H-2, and delta O-18. The central lake samples showed a major contribution of terrestrial-sourced molecular formulas to the ultrahigh resolution mass spectrometry data, suggesting the presence of allochthonous DOM sources even here. We conclude that an elevated terrestrial CDOM input likely enhances dissolved CH4 levels in Lake Taihu.",
keywords = "PARALLEL FACTOR-ANALYSIS, LARGE SHALLOW LAKE, FLUORESCENCE SPECTROSCOPY, WATER COLUMN, PARAFAC ANALYSIS, TIBETAN PLATEAU, CARBON, ECOSYSTEMS, CLIMATE, QUALITY",
author = "Yongqiang Zhou and Qitao Xiao and Xiaolong Yao and Yunlin Zhang and Mi Zhang and Kun Shi and Xuhui Lee and Podgorski, {David C.} and Boqiang Qin and Spencer, {Robert G. M.} and Erik Jeppesen",
year = "2018",
month = sep,
day = "18",
doi = "10.1021/acs.est.8b02163",
language = "English",
volume = "52",
pages = "10297--10306",
journal = "Environmental Science & Technology (Washington)",
issn = "0013-936X",
publisher = "AMER CHEMICAL SOC",
number = "18",

}

RIS

TY - JOUR

T1 - Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China

AU - Zhou, Yongqiang

AU - Xiao, Qitao

AU - Yao, Xiaolong

AU - Zhang, Yunlin

AU - Zhang, Mi

AU - Shi, Kun

AU - Lee, Xuhui

AU - Podgorski, David C.

AU - Qin, Boqiang

AU - Spencer, Robert G. M.

AU - Jeppesen, Erik

PY - 2018/9/18

Y1 - 2018/9/18

N2 - Inland waters play an important role for the storage of chromophoric dissolved organic matter (CDOM) and outgassing of methane (CH4). However, to date, linkages between the optical dynamics of CDOM and dissolved CH4 levels remain largely unknown. We used multi-year (2012-2014) seasonal data series collected from Lake Taihu and 51 connecting channels to investigate how CDOM optical dynamics may impact dissolved CH4 levels in the lake. High dissolved CH4 in the northwestern inflowing river mouths coincided with high underwater UV-vis light availability, dissolved organic carbon (DOC), chemical oxygen demand (COD), DOM aromaticity, terrestrial humic-rich fluorescence, in situ measured terrestrial CDOM, depleted dissolved oxygen (DO), stable isotopic delta H-2, and delta O-18 compared with other lake regions. Our results further revealed positive relationships between dissolved CH4 and CDOM absorption at 350 nm, i.e. a(350), COD, DOC, terrestrial humic-rich fluorophores, and DOM aromaticity, and negative relationships between dissolved CH4 and DO, delta H-2, and delta O-18. The central lake samples showed a major contribution of terrestrial-sourced molecular formulas to the ultrahigh resolution mass spectrometry data, suggesting the presence of allochthonous DOM sources even here. We conclude that an elevated terrestrial CDOM input likely enhances dissolved CH4 levels in Lake Taihu.

AB - Inland waters play an important role for the storage of chromophoric dissolved organic matter (CDOM) and outgassing of methane (CH4). However, to date, linkages between the optical dynamics of CDOM and dissolved CH4 levels remain largely unknown. We used multi-year (2012-2014) seasonal data series collected from Lake Taihu and 51 connecting channels to investigate how CDOM optical dynamics may impact dissolved CH4 levels in the lake. High dissolved CH4 in the northwestern inflowing river mouths coincided with high underwater UV-vis light availability, dissolved organic carbon (DOC), chemical oxygen demand (COD), DOM aromaticity, terrestrial humic-rich fluorescence, in situ measured terrestrial CDOM, depleted dissolved oxygen (DO), stable isotopic delta H-2, and delta O-18 compared with other lake regions. Our results further revealed positive relationships between dissolved CH4 and CDOM absorption at 350 nm, i.e. a(350), COD, DOC, terrestrial humic-rich fluorophores, and DOM aromaticity, and negative relationships between dissolved CH4 and DO, delta H-2, and delta O-18. The central lake samples showed a major contribution of terrestrial-sourced molecular formulas to the ultrahigh resolution mass spectrometry data, suggesting the presence of allochthonous DOM sources even here. We conclude that an elevated terrestrial CDOM input likely enhances dissolved CH4 levels in Lake Taihu.

KW - PARALLEL FACTOR-ANALYSIS

KW - LARGE SHALLOW LAKE

KW - FLUORESCENCE SPECTROSCOPY

KW - WATER COLUMN

KW - PARAFAC ANALYSIS

KW - TIBETAN PLATEAU

KW - CARBON

KW - ECOSYSTEMS

KW - CLIMATE

KW - QUALITY

U2 - 10.1021/acs.est.8b02163

DO - 10.1021/acs.est.8b02163

M3 - Journal article

C2 - 30141916

VL - 52

SP - 10297

EP - 10306

JO - Environmental Science & Technology (Washington)

JF - Environmental Science & Technology (Washington)

SN - 0013-936X

IS - 18

ER -