文章基本信息

标题：Methane formation and consumption processes in Xiangxi Bay of the Three Gorges Reservoir
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作者：Chenghao Wang ; Shangbin Xiao ; Yingchen Li 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep04449
出版社：Springer Nature
摘要：Indoor simulation experiment was carried out to evaluate the formation and consumption rates of methane (CH₄) in Xiangxi Bay of the Three Gorges Reservoir (TGR), China. The results show that both the CH₄ formation and consumption rates were significantly positively correlated with temperature. CH₄ efflux decreased with rising temperature due to its potential increasing oxidation rate. CH₄ oxidation in surface sediments accounted for 51.8% of the total production and it even reached to 77.4% at 35°C. The methane oxidation rate in water column ranged from 1.26 to 4.65 mg/(m²h), of which the average and greatest rate accounted for 46.7% and 73.9% of CH₄ production respectively under the condition of 30 m water column and 35°C. The methane oxidation may increase by 41.04 mg/(m²h) under average water level of TGR (160 m), and most methane resulted from sediments can be oxidized in the water column.