Oxidation of soil organic carbon during an anoxic-oxic transition
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DOI: 10.1016/j.geoderma.2020.114584
Abstract: Abstract Redox reactions of iron (Fe) can play an important role in controlling the stability and transformation of organic carbon (OC) in soils. However, there is limited knowledge about the dynamics of Fe and OC… read more here.
Keywords: oxidation; pre reduced; anoxic oxic; organic carbon ... See more keywords
Reactive Oxygen Species Promote Nitrous Oxide (N2O) Emissions from Soil/Sediment during the Anoxic-Oxic Transition.
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DOI: 10.1021/acs.est.2c07081
Abstract: Reactive oxygen species (ROS)-induced element/pollutant geochemical processes in fluctuating anoxic-oxic areas have received increasing attention in recent years. Nitrous oxide (N2O) is a strong greenhouse gas; however, the relationship between ROS and N2O emissions in… read more here.
Keywords: n2o emissions; soil sediment; oxic transition; anoxic oxic ... See more keywords
Rapid timescale for an oxic transition during the Great Oxidation Event and the instability of low atmospheric O2
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DOI: 10.1073/pnas.2205618119
Abstract: Significance Understanding the rise of atmospheric oxygen on Earth is important for assessing precursors to complex life and for evaluating potential future detections of oxygen on exoplanets as signs of extraterrestrial biospheres. However, it is… read more here.
Keywords: rise; oxic transition; great oxidation; rapid timescale ... See more keywords