Spatial variations in diffusive methane fluxes and the role of eutrophication in a subtropical shallow lake

The Science of the Total Environment
Lei ZhangZhaode Wang

Abstract

Shallow lakes account for most of the diffusive CH4 emissions from global lakes, and they also suffer from eutrophication worldwide. Determining the effect of eutrophication on diffusive CH4 fluxes is fundamental to understanding CH4 emissions in shallow lakes. This study aimed to investigate the spatial variations in diffusive CH4 fluxes and explore the role of eutrophication in Lake Chaohu, a large and shallow eutrophic lake in the lower reaches of the Yangtze River. A one-year field observation was carried out to examine CH4 concentrations in the sediment and water and the diffusive fluxes of CH4 across the sediment-water interface (Fs-w) and water-air interface (Fw-a). Both Fs-w (0.306-1.56 mmol m-2 d-1) and Fw-a (0.097-0.529 mmol m-2 d-1) were upward and showed significant spatial heterogeneity and were significantly positively correlated. Parameters related to eutrophication had significant positive relationships with Fw-a, and the total phosphorus distribution in the water explained the greatest proportion of the spatial variation in Fw-a. Distance to shore and water depth were inversely correlated with Fw-a and modified the effects of eutrophication. Overall, the results provide direct evidence of the key role of eutrop...Continue Reading

References

Oct 31, 2007·Journal of Environmental Sciences (China)·Ben-Sheng YouShi-Ming Ding
Jan 8, 2011·Science·David BastvikenAlex Enrich-Prast
Feb 25, 2011·The Science of the Total Environment·Hans W PaerlElizabeth S Calandrino
Apr 26, 2011·Environmental Science & Technology·Hong YangRoger J Flower
Mar 29, 2014·Nature·Gabriel Yvon-DurocherPaul A del Giorgio
May 2, 2018·The Science of the Total Environment·Armando Sepulveda-JaureguiFrédéric Thalasso
Jul 28, 2018·Water Research·Karla Martinez-CruzFrederic Thalasso
Sep 23, 2018·The Science of the Total Environment·Xingcheng YanHuichao Liu
Oct 9, 2018·Water Research·Siyue LiXi Xi Lu
Dec 7, 2018·International Journal of Environmental Research and Public Health·Qibiao YuYanqiang Li
Feb 2, 2019·The Science of the Total Environment·Yuyin YangShuguang Xie
Mar 28, 2019·Nature Communications·Jake J BeaulieuJohn A Downing
Aug 9, 2019·Environmental Science and Pollution Research International·Biao LiQinglong L Wu
Feb 23, 2020·Limnology and Oceanography Letters·Tonya DelSontroJohn A Downing
Nov 1, 2016·Bioscience·Bridget R DeemerJ Arie Vonk

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