Soil Organic Carbon In Savannas Decreases With Anthropogenic Climate Change
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I am interested in understanding how Carbon fluxes in drylands ecosystems would respond to climate change. Drylands cover about 40% of the total land surface, contain about 15% of the total global soil carbon, and most importantly, are home to 30% of the world population. The IPCC 2013 report indicated that drylands, particularly savanna ecosystems, would experience a decrease in precipitation and an increase in temperature by the end of the 21st century. Precipitation and temperature are key drivers of carbon pool fluxes in drylands. Depending on the directional change of the climate, drylands could become carbon sink or source. Currently, it is not clear how the massive carbon in drylands would respond to climate change and anthropogenic activities.

                       

Soil Organic Carbon In Savannas Decreases With Anthropogenic Climate Change

Dr. Kebonye Dintwe and Dr. Gregory Okin from the University of California Los Angeles (UCLA) investigated the response of soil organic carbon (SOC) fluxes to climate change in the Kalahari. The study was undertaken in a context that climate models indicate that climate change is likely to affect carbon (C) cycling in drylands, particularly savannas. Existing models do not quantify nor indicate the magnitude and directional change of SOC fluxes in response to climate change. In this study, the investigators...

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