A thousand-year tropical soil, triggered by the acceleration of deforestation and the use of farmland, can unleash carbon dioxide into the atmosphere, according to a new study by researchers from the State University of Florida.
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"In many ways, this is similar to what happened in the Mississippi River Basin 100 years ago, and in the recent Amazon," study author Rob Spencer, FSU Associate Professor at the Earth, Ocean and Space Sciences Department. "Congo is now confronted with turning virgin lands into agriculture, and we want to know what it means for the carbon cycle."
While the wider effects of deforestation on the carbon cycle are well known, researchers said their findings were published. today in Nature Geoscience suggests that there is an extra path or carbon leak in the rivers from the soil emitted by deforestation and land transformation.
"At this point, it is difficult to know the magnitude of this flow and therefore the relative importance of this process compared to other anthropogenic CO2 sources but is likely to grow with further deforestation and land-use transformation," said the former postdoctoral FSU Travis Drake, the lead author of the study, said: "We hope this book stimulates more research on the relative importance of this process."
To better distinguish the different soils in their study, from the exploration sites in outflows and rivers Using ultra-high resolution mass spectrometry data collected from state-of-the-art instruments in the highly magnetic field laboratory based in the Union, the team found that older dissolved organic substances discharged from deforested areas are more energy-rich and chemically different than those from better-kept forests
Mobilizing adult and biodiverse carbon soil from tropical deforestation, Nature Geoscience (2019). DOI: 10.1038 / s41561-019-0384-9, https://www.nature.com/articles/s41561-019-0384-9
Tropical soil disruption may be a hidden source of CO2 (2019, 24 June)
restored on 24 June 2019
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