In arid and semiarid areas, the effects of afforestation on soil organic carbon (SOC) have received considerable attention. In these areas, in fact, soil inorganic carbon (SIC), rather than SOC, is the dominant form of carbon, with a reservoir approximately 2-10 times larger than that of SOC. A subtle fluctuation of SIC pool can strongly alter the regional carbon budget. However, few studies ha...

Paleoelevation reconstruction using stable isotopes, although a relatively new science, is making a signifi cant contribution to our understanding of the recent growth of the world’s major orogens. In this review we examine the use of both light stable isotopes of oxygen and the new “clumped-isotope” (Δ47) carbonate thermometer in carbonates from soils. Globally, the oxygen isotopic composition...

Carbon and oxygen isotope values of ancient pedogenic carbonates reflect the paleoenvironmental conditions under which formed. are commonly used to reconstruct pCO2, C3 vs. C4 plant types, carbon cycle dynamics. Oxygen same have been past temperatures elevations. In geologic record, changes in these can be difficult interpret because they affected by a suite multiple local (e.g. precipitation t...