Results 81 to 90 of about 5,111 (218)

Seasonality of temperature dependence of methane fluxes from natural wetlands

Functional Ecology, Volume 39, Issue 9, Page 2383-2397, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperature dependence is a crucial parameter in estimating methane (CH4) fluxes from natural wetlands, yet our understanding of this parameter remains inadequate. Seasonal fluctuations in water levels and ecosystem productivity lead to seasonal differences in CH4 ...
Jinshuai Li, Tianxiang Hao, Hongyang Chen, Sara Helen Knox, Meng Yang, Zhi Chen, Guirui Yu   +6 more
wiley   +1 more source

Wide Distribution of a Novel pmoA -Like Gene Copy among Type II Methanotrophs, and Its Expression in Methylocystis Strain SC2 [PDF]

Applied and Environmental Microbiology, 2003
ABSTRACT Experiments were conducted to determine if a novel pmoA -like gene ( pmoA2 ) recently discovered in the methane-oxidizing bacterium Methylocystis strain SC2 (P. F. Dunfield, M. Tchawa Yimga, S. D. Dedysh, U. Berger, W. Liesack, and J.
Yimga, M., Dunfield, P., Ricke, P., Heyer, H., Liesack, W.   +4 more
openaire   +3 more sources

Physiological modes of action across species and toxicants : the key to predictive ecotoxicology [PDF]

, 2017
As ecotoxicologists we strive for a better understanding of how chemicals affect our environment. Humanity needs tools to identify those combinations of man-made chemicals and organisms most likely to cause problems. In other words: which of the millions
Agatz, Alda Álvarez, Alda ÁLvarez, Alda Álvarez, Ankley, Ashauer, Augustine, Barsi, Bhattacharya, Billoir, Billoir, Boyd, Bánszegi, Cedergreen, De Laender, Escher, Forbes, Goussen, Groh, Gunawardena, Gunnarsson, Heckmann, Hendriks, Hines, Huang, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jager, Jung, Kienzler, Klok, Klok, Kooijman, LaLone, Laskowski, Li, Mallard, Margerit, Martin, Martin, Massarin, Muller, Muller, Muller, Nisbet, Pieters, Relyea, Rohr, Rubach, SCENIHR (Scientific Committee on Emerging and Newly Identified Health Risks), Schäfer, Sousa, Stadnicka-Michalak, Stehle, Swain, Van den Brink, Villeneuve, Watanabe, Wittwehr, Wren, Zhang   +71 more
core   +1 more source

Methane‐Driven Arsenic Biogeochemical Cycling in Deep‐Sea Cold Seeps: Implications for Oceanic Arsenic Geochemistry

Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.
Abstract Arsenic accumulation in seafloor cold seeps is poorly understood. Here, we investigate the interplay between arsenic and methane biogeochemical cycles at the Haima cold seep, South China Sea. Geochemical analyses showed elevated arsenic levels in seep sediments, primarily as sulfide‐bound forms, with strong correlations between dissolved ...
Jiwei Li, Xiyang Dong, Shuangquan Liu, Wanli Chen, Jin Liao, Chuwen Zhang, Shijie Bai, Hengchao Xu, Jian Zhang, Shun Chen, Kaiwen Ta, Shamik Dasgupta, Xiaotong Peng   +12 more
wiley   +1 more source

Marine organic aerosol at Mace Head: effects from phytoplankton and source region variability [PDF]

Atmospheric Chemistry and Physics
Organic aerosol (OA) is recognized as a significant component of particulate matter (PM), yet their specific composition and sources, especially over remote areas, remain elusive due to the overall scarcity of high-resolution online data.
E. Chevassus, K. N. Fossum, D. Ceburnis, L. Lei, C. Lin, C. Lin, W. Xu, W. Xu, C. O'Dowd, J. Ovadnevaite   +9 more
doaj   +1 more source

Sustained Green Manure‐Rice Rotations Can Mitigate Methane Emissions by Enhancing Microbial Methane Oxidation in Southern China

Earth's Future, Volume 13, Issue 8, August 2025.
Abstract Green manure (GM) enhances the ecological services in agricultural ecosystems, including soil health and carbon sequestration. However, its effect on regional methane (CH4) emissions from paddy fields is unclear. Here we clarify the impacts of GM rotation by combining process‐based modeling with microbial gene abundance information and ...
Hao Liang, Jin Fu, Guopeng Zhou, Jiguang Feng, Qiuan Zhu, Pete Smith, Benoît Gabrielle, Tao Li, Susanne Schmidt, Changxu Xu, Jia Liu, Jun Nie, Ji Wu, Mingjian Geng, Fei Wang, Yuting Liang, Weidong Cao, Feng Zhou   +17 more
wiley   +1 more source

关于复合外套MOA机械强度计算问题的研究

Gaoya dianqi, 2007
针对电力系统应用广泛的复合外套金属氧化物避雷器（PMOA）机械强度的计算问题,进行了分析研究,并提出了定量分析公式,即采用PMOA顶端的转角θ和挠度f来衡量载荷对避雷器变形量的大小。分析计算结果表明:在载荷一定的情况下,减少PMOA的长度可以明显减小外部载荷对其产生的变形量,从而提高其机械性能。
马春华
doaj  

Structure and function of methanotrophic communities in a landfill-cover soil [PDF]

, 2017
In landfill-cover soils, aerobic methane-oxidizing bacteria (MOB) convert CH4 to CO2, mitigating emissions of the greenhouse gas CH4 to the atmosphere.
Henneberger, Ruth, Lüke, Claudia, Mosberger, Lona, Schroth, Martin H.   +3 more
core  

Biogeographic Patterns and Ecological Roles of Microorganisms in Sediments Along an Estuarine Salinity Gradient

Environmental Microbiology Reports, Volume 17, Issue 4, August 2025.
From the river coastal to the adjacent sea waters, the diversity characteristics, community assembly processes, functional potential and community compositions of sedimentary microbial communities exhibit significant changes with increasing salinity levels.
Zongxiao Zhang, Guo Yuan, Xakila Turgun, Zulpinur Turgun, Lijun Hou, Mao Ye, Yonghui Wang, Xingbin Xu   +7 more
wiley   +1 more source

Nitrogen Redox Controls on Greenhouse Gas Production in Yedoma Taliks

Global Change Biology, Volume 31, Issue 7, July 2025.
Arctic Yedoma permafrost holds large carbon and nitrogen pools that, when thawed, undergo microbially mediated processes that release greenhouse gases like methane and nitrous oxide. We analyzed seasonal shifts in microbial community dynamics and geochemistry in deep thawed soils (talik) and found year‐round methane production, with limited winter ...
Oded Bergman, Katey Walter Anthony, E. Eliani‐Russak, Orit Sivan   +3 more
wiley   +1 more source