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    Changes in soil organic carbon in the upper Heihe river basin, China

    Qin YY1,2, F Qi1, NM Holden3, JJ Cao4

    Phyton-International Journal of Experimental Botany, Vol.85, pp. 149-154, 2016, DOI:10.32604/phyton.2016.85.149

    Abstract The Heihe River Basin is a globally significant carbon pool, but its soil organic carbon dynamics is poorly understood. Soil samples taken between 2500 m and 4100 m revealed that the majority (>75%) of soil organic carbon was from 0-40 cm. It showed a negative relationship with pH and soil bulk density, and a positive relationship with altitude and soil water content, respectively. From 2005 to 2011, soil carbon content in the upper catchment decreased from 93 g/kg to 53 g/kg. These results suggest that policies should aim to reduce carbon loss by transferring it More >

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