Using a new analysis method for satellite images, an international research team, coordinated by the French Alternative Energies and Atomic Energy Commission (CEA) and INRAE, mapped for the first time annual changes in global forest biomass between 2010 and 2019.
have become the main global carbon sinks. Tropical forests, which are older and degraded by deforestation, fire and drought, are nearly carbon neutral. The, highlight the importance of accounting for young forests and forest degradation in predictive carbon‑sink models to develop more effective climate change mitigation strategies.to mitigate climate change.
The vegetation data, obtained from the Soil Moisture and Ocean Salinity satellite using L-band vegetation optical depth methods, is unique in estimating average above-ground carbon stocks on a global level. However, the widespread application of L-VOD over the entire globe is limited by signal disruption from radio frequency interference from human activities and by L‑VOD sensitivity to vegetative water content.
They then calculated the spatial and temporal distribution of total live biomass carbon of terrestrial ecosystems from 2010 to 2019, and developed maps of annual biomass carbon change. Researchers used the maps to assess regional carbon budgets , attribute carbon losses and gains toGlobally, terrestrial biomass carbon stocks increased from 2010 to 2019 by approximately 500 million metric tons of carbon per year.
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