Abstract

QIN, YY; QI, F; HOLDEN, NM  and  CAO, JJ. Cambios en el carbón orgánico del suelo en la cuenca superior del río Heihe, China. Phyton (B. Aires) [online]. 2016, vol.85, n.1, pp.149-154. ISSN 1851-5657.

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 from the top- to the sub-soil.

Keywords : Soil properties; Soil carbon content; Soil carbon storage; Qilian Mountains.

        · abstract in Spanish     · text in English     · English ( pdf )