Abstract:Drylands are ecosystems that cover more than 40% of the terrestrial surface (Reynolds et al., 2007;Safriel & Adeel, 2005). These regions represent the major pool of soil inorganic carbon (SIC) and account for 15.5% of the world's soil organic carbon (SOC) storage (Lal, 2009), wherein the SIC pool is ten-fold higher than the SOC storage (Emmerich, 2003;Shi et al., 2012;Zamanian et al., 2016). Given that the carbon in SIC (85,000 years) has a longer mean residence time compared to SOC (35 years), vegetation (10 … Show more
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