Abstract
Distribution and storage of soil organic and inorganic carbon under different ecological zones in Xinjiang, China
Highlights
Soil carbon pool comprises of two components: soil organic carbon (SOC) and soil inorganic carbon (SIC)[1,2]
Recent studies have shown that deserts may become a relatively large carbon sequestration pool, and global arid soils may have a significant influence on global carbon balance and carbon cycle in terrestrial ecosystems[5,6]
Compared with many studies mainly focus on SOC in arid regions, very little attention has been paid to SIC[11,12,13,14], the SIC content may have a significant effect on the soil carbon storage and carbon cycle in arid regions[6,15]
Summary
Soil carbon pool comprises of two components: soil organic carbon (SOC) and soil inorganic carbon (SIC)[1,2]. Recent studies have shown that deserts may become a relatively large carbon sequestration pool, and global arid soils may have a significant influence on global carbon balance and carbon cycle in terrestrial ecosystems[5,6]. Arid ecosystems cover a very large area of the world and potentially have a great contribution to global biogeochemical cycle, very little effort has been devoted to examining carbon balance in these ecosystems[9,10]. Compared with many studies mainly focus on SOC in arid regions, very little attention has been paid to SIC[11,12,13,14], the SIC content may have a significant effect on the soil carbon storage and carbon cycle in arid regions[6,15]. The magnitude of the atmospheric carbon intercepted and stored in the form of carbonates in northwestern China is about 1.5 Tg/a[16,17]
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