Carbon flux, in the context of biogeochemical topics, denotes the rate at which carbon in its various chemical forms (e.g., CO₂, CH₄, dissolved inorganic and organic carbon, particulate organic carbon) is transferred per unit area and time between reservoirs such as the atmosphere, terrestrial biosphere, oceans, and lithosphere. It encompasses processes including photosynthetic uptake, respiration, decomposition, combustion, weathering, ocean–atmosphere gas exchange, and sedimentation. Quantification of carbon fluxes, typically in units like g C m⁻² yr⁻¹, is central to constraining carbon budgets, modeling the global carbon cycle, and assessing feedbacks in climate system research.
The Southern Ocean plays an important role in global climate and carbon cycling. Understanding carbon export in this region is critical for modeling Earth's changing climate and evaluating potential ocean-based climate interventions.
Earth Sciences
Aug 27, 2025
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As deforestation and climate change threaten to transform the Amazon, there is growing concern that the ecosystem may be reaching an irreversible tipping point, beyond which self-reinforcing feedback loops would lock the ...
Environment
Aug 23, 2025
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Forests across the globe are experiencing significant changes in their age structure. Many tropical regions, including the Amazon, the Congo Basin, and Southeast Asia, are seeing widespread shifts towards younger forests, ...
Ecology
Aug 21, 2025
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A recent study led by Prof. Zeng Fanjiang from the Xinjiang Institute of Ecology and Geography of the Chinese Academy of Sciences has revealed concerning trends in soil organic carbon (SOC) loss due to prolonged human disturbance ...
Earth Sciences
Aug 21, 2025
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A deeper look into carbon flux is now possible—thanks to a deep pool of scientific collaboration. And for once, the spotlight is on Asia.
Earth Sciences
Aug 21, 2025
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Thawing permafrost is a major climate risk due to the associated release of carbon dioxide and other greenhouse gases (GHGs). However, new research by a team led by Prof. Yang Yuanhe from the Institute of Botany of the Chinese ...
Earth Sciences
Aug 20, 2025
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Ash dieback and other tree diseases are resulting in significantly more greenhouse gas emissions than previously thought because a large amount of carbon is escaping from woodland soils, a study has found. This is in addition ...
Earth Sciences
Aug 20, 2025
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Teasing apart the sources of organic carbon stored in coastal wetland soils around the world was the "grand challenge" Australian Institute of Marine Science (AIMS) scientists successfully tackled in a seminal blue carbon ...
Environment
Aug 19, 2025
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Human activities, such as deforestation and the expansion of agricultural areas, have a massive impact on the natural state of ecosystems. As a result, large amounts of carbon are released into the atmosphere, contributing ...
Earth Sciences
Aug 18, 2025
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Lakes have long been viewed as sources of carbon dioxide emissions, but new research suggests they may actually act as carbon sinks. A study led by Uppsala University reveals that lake shorelines store more carbon than previously ...
Earth Sciences
Aug 11, 2025
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