Continuous Seasonal River Ebullition Measurements Linked to Sediment Methane Formation.

Continuous Seasonal River Ebullition Measurements Linked to Sediment Methane Formation.
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与沉积物甲烷形成相关的连续季节性河流喷发测量

DOI:
10.1021/acs.est.5b01525
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发表时间:
2015
影响因子:
11.4
通讯作者:
A. Lorke
A. Lorke
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Wilkinson;A. Maeck;Z. Alshboul;A. Lorke

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在德国温带萨尔河进行的实验室沉积物培养和年周期内的连续沸腾监测证实,河流蓄水区可以高速率产生和排放甲烷(25 °C时为7至30(g CH 4 m-3d-1),270至700(g CH 4 m-2 yr-1))。夏季甲烷沸腾(ME)峰值是冬季最低值的4至10倍的一个因素,沉积物甲烷的形成主要由上层沉积物(深度为0.14至0.2米)。季节性ME动态的关键驱动因素是温度。甲烷形成的温度和沉积物的深度,来自实验室孵化的经验模型,再现了从冬季到盛夏的每日沸腾,虽然夏末和秋季模拟ME超过了观察到的ME。一个可能的解释是基板限制。我们建议测量产甲烷可用的碳源,以确定底物限制,并帮助表征甲烷形成随深度和地点的变化。
Laboratory sediment incubations and continuous ebullition monitoring over an annual cycle in the temperate Saar River, Germany confirm that impounded river zones can produce and emit methane at high rates (7 to 30 (g CH4m–3d–1) at 25 °C and 270 to 700 (g CH4m–2yr–1), respectively). Summer methane ebullition (ME) peaks were a factor of 4 to 10 times the winter minima, and sediment methane formation was dominated by the upper sediment (depths of 0.14 to 0.2 m). The key driver of the seasonal ME dynamics was temperature. An empirical model relating methane formation to temperature and sediment depth, derived from the laboratory incubations, reproduced the measured daily ebullition from winter to midsummer, although late summer and autumn simulated ME exceeded the observed ME. A possible explanation for this was substrate limitation. We recommend measurements of methanogenically available carbon sources to identify substrate limitation and help characterize variation in methane formation with depth and from site to site.
萨尔河中的微生物甲烷氧化。
DOI: --
发表时间: 1982
期刊: Zeitschrift für allgemeine Mikrobiologie
影响因子: --
作者:
U. Zaiss;P. Winter;H. Kaltwasser
通讯作者: H. Kaltwasser
温带沼泽中的甲烷代谢
DOI: --
发表时间: 1994
影响因子: 4.4
作者:
J. A. Amaral;R. Knowles
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DOI: 10.1111/j.1365-2486.2010.02289.x
发表时间: 2011-02
影响因子: 11.6
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通讯作者: G. Yvon‐Durocher;J. Montoya;G. Woodward;J. I. Jones;M. Trimmer
DOI: 10.1002/rra.2648
发表时间: 2014-05
影响因子: 2.2
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通讯作者: A. Maeck;A. Lorke
DOI: 10.1002/rra.1260
发表时间: 2009
影响因子: 2.2
作者:
A. Becker;V. Kirchesch;H. Baumert;H. Fischer;Andreas Schöl
通讯作者: Andreas Schöl