Posts

In highly productive areas, such as tropical and temperate ecosystems, the efficiency of carbon use by microbes decouples from the respiration rate once this exceeds a critical threshold. Photo: pxhere CC0 1.0 Universal CC0 1.0 Deedpxhere CC0 1.0 Universal CC0 1.0 Deed

The connection between microbes and carbon cycle is more complicated than expected

,
In some circumstances, a new study explains, microbial respiration, with the resulting release of carbon, can increase even when biomass production remains constant. A factor that must be included in climate projection models
In Southeast Asia, deforestation and land conversion have released more carbon and greenhouse gases than any other activity over the past two decades. Photo: Pok Rie Pexels free to usePok Rie Pexels free to use

Deforestation has made Southeast Asia a net source of carbon

,
In the first two decades of the century, according to a Japanese study, the forests in the area released more carbon than they stored. Fires, peatland degradation, and fossil fuels are making things worse
The study has important implications for climate change, as tropical forests are essential carbon sinks for the planet. Photo: pxhere CC0 Public Domain Free for personal and commercial use No attribution requiredPhoto: pxhere CC0 Public Domain Free for personal and commercial use No attribution required

Nitrogen doubles the regeneration speed of tropical forests

,
When provided with adequate nitrogen tropical forests can recover from deforestation twice as fast as they would under normal circumstances, a research led by the University of Leeds has found
The surface of ferrihydrite has mixed areas of positive and negative charges, allowing it to attract both negatively charged substances such as phosphates and positively charged substances such as metal ions. Photo: Jerry Bigham Attribution-ShareAlike 3.0 Unported CC BY-SA 3.0 DeedJerry Bigham Attribution-ShareAlike 3.0 Unported CC BY-SA 3.0 Deed

This is how iron minerals promote soil carbon sequestration

,
Iron oxide minerals trap more than a third of the organic carbon in soil. Among them, a study explains, ferrihydrite uses different strategies to capture different compounds
Today only 7% of the original surface area of continental peatlands has remained intact, and their climatic boundaries are changing. Photo: SiberianJay Attribution-ShareAlike 4.0 International CC BY-SA 4.0 DeedSiberianJay Attribution-ShareAlike 4.0 International CC BY-SA 4.0 Deed

Climate change puts Europe’s last peatlands at risk

,
Currently, a study has found, only 7% of continental peatlands can be considered intact. But climate pressure is increasing, and in the coming years the situation could worsen
Permafrost, the authors note, covers about 17% of the Earth's surface and stores about one-third of the organic carbon in the world's soil. Photo: Boris Radosavljevic Attribution 2.0 Generic CC BY 2.0 DeedBoris Radosavljevic Attribution 2.0 Generic CC BY 2.0 Deed

Here’s how Arctic soil offsets emissions from alpine permafrost

,
Climate change reduces the absorption of greenhouse gases by alpine permafrost but, at the same time, it stimulates CO2 and methane sequestration in Arctic frozen soil, a Chinese study has found. In the first case, global warming potential increases by 13%. In the second, it decreases by 10%
A study has proposed a framework for assessing European soil quality in a comprehensive manner by identifying quality indicators. Photo: Easy-Peasy.AI Free to useEasy-Peasy.AI Free to use

An integrated approach is needed for EU soil quality monitoring

,
A new study reviews different soil assessment schemes. The “binary” system is the most suitable for macro evaluation. But tools for local investigations are also needed
By distinguishing between stable and unstable forms of carbon accumulation, the microbial pump-based assessment system allows for a more reliable evaluation of sustainable soil management practices. Photo: Rain Photography Pexels free to useRain Photography Pexels free to use

Chinese researchers propose a new indicator to assess soil carbon stability

,
Research conducted by the Beijing Academy of Sciences has defined a new framework for assessing the Microbial Carbon Pump in soil. It distinguishes between stable and non stable organic matter (that is more easily decomposed and released)
Nei deserti l’impatto delle azioni antropiche ha interessato soprattutto il carbonio organico particolato nel terriccio e quello di origine microbica e vegetale nel sottosuolo. Foto: Circe Denyer CC0 1.0 Universal CC0 1.0 Deed

Human activity causes carbon loss in deserts

,
Some human-induced disturbances cause significant carbon loss in the soil of hyper-arid environments, a Chinese study claims. Among the most impactful activities even some practices considered “sustainable” such as seasonal harvesting and irrigation
Between 2010 and 2020, carbon losses in the Amazon increased due to deforestation and other underestimated phenomena such as fires and fragmentation. Photo: Neil Palmer/CIAT Attribution-NonCommercial-NoDerivs 2.0 Generic CC BY-NC-ND 2.0 DeedNeil Palmer/CIAT Attribution-NonCommercial-NoDerivs 2.0 Generic CC BY-NC-ND 2.0 Deed

Carbon balance in Amazon rainforest shows 370 million tons deficit in a decade

,
Between 2010 and 2020, carbon losses increased due to deforestation and other underestimated phenomena such as fires and fragmentation, according to new study. Emission intensity is higher in protected areas