Importance of hydrogenotrophic, aceticlastic and methylotrophic methanogenesis for methane production in terrestrial, aquatic and other anoxic environments: a mini …

R Conrad - Pedosphere, 2020 - Elsevier
Microbial methanogenesis is a major source of the greenhouse gas methane (CH 4). It is the
final step in the anaerobic degradation of organic matter when inorganic electron acceptors …

[HTML][HTML] From legacy contamination to watershed systems science: a review of scientific insights and technologies developed through DOE-supported research in …

D Dwivedi, CI Steefel, B Arora, J Banfield… - Environmental …, 2022 - iopscience.iop.org
Water resources, including groundwater and prominent rivers worldwide, are under duress
because of excessive contaminant and nutrient loads. To help mitigate this problem, the …

[HTML][HTML] Improved global wetland carbon isotopic signatures support post-2006 microbial methane emission increase

Y Oh, Q Zhuang, LR Welp, L Liu, X Lan… - … Earth & Environment, 2022 - nature.com
Atmospheric concentrations of methane, a powerful greenhouse gas, have strongly
increased since 2007. Measurements of stable carbon isotopes of methane can constrain …

[HTML][HTML] Landscape topography structures the soil microbiome in arctic polygonal tundra

N Taş, E Prestat, S Wang, Y Wu, C Ulrich… - Nature …, 2018 - nature.com
In the Arctic, environmental factors governing microbial degradation of soil carbon (C) in
active layer and permafrost are poorly understood. Here we determined the functional …

Lowering water table reduces carbon sink strength and carbon stocks in northern peatlands

MJ Kwon, A Ballantyne, P Ciais, C Qiu… - Global change …, 2022 - Wiley Online Library
Peatlands at high latitudes have accumulated> 400 Pg carbon (C) because saturated soil
and cold temperatures suppress C decomposition. This substantial amount of C in Arctic and …

[HTML][HTML] Impacts of temperature and soil characteristics on methane production and oxidation in Arctic tundra

J Zheng, T RoyChowdhury, Z Yang, B Gu… - …, 2018 - bg.copernicus.org
Rapid warming of Arctic ecosystems accelerates microbial decomposition of soil organic
matter and leads to increased production of carbon dioxide (CO 2) and methane (CH 4). CH …

Carbon dioxide and methane release following abrupt thaw of Pleistocene permafrost deposits in Arctic Siberia

C Knoblauch, C Beer, A Schuett… - Journal of …, 2021 - Wiley Online Library
The decomposition of thawing permafrost organic matter (OM) to the greenhouse gases
(GHG) carbon dioxide (CO2) and methane forms a positive feedback to global climate …

珠江口红树林土壤甲烷和二氧化碳通量特征及其影响因素研究

张涵, 唐常源, 禤映雪, 江涛, 黄品怡, 杨秋, 曹英杰 - 生态环境学报, 2022 - jeesci.com
红树林作为碳密度最高的森林生态系统之一, 在碳生物地球化学循环过程中发挥着重要作用.
该研究以广州市珠江河口红树林土壤为主要研究对象, 于2020 年8 月—2021 年7 …

[HTML][HTML] A quantitative graph-based approach to monitoring ice-wedge trough dynamics in polygonal permafrost landscapes

T Rettelbach, M Langer, I Nitze, B Jones, V Helm… - Remote Sensing, 2021 - mdpi.com
In response to increasing Arctic temperatures, ice-rich permafrost landscapes are
undergoing rapid changes. In permafrost lowlands, polygonal ice wedges are especially …

Mathematical Modelling of Arctic Polygonal Tundra with Ecosys: 1. Microtopography Determines How Active Layer Depths Respond to Changes in Temperature and …

RF Grant, ZA Mekonnen, WJ Riley… - Journal of …, 2017 - Wiley Online Library
Microtopographic variation that develops among features (troughs, rims, and centers) within
polygonal landforms of coastal arctic tundra strongly affects movement of surface water and …