Carbon Sequestration Function of Check-Dams: A Case Study of the Loess Plateau in China
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Check-dams are the most common structures for controlling soil erosion in the Loess Plateau. However, the effect of check-dams on carbon sequestration, along with sediment transport and deposition, has not been assessed over large areas. In this study, we evaluated the carbon sequestration function of check-dams in the Loess Plateau. The results indicate that there were approximately 11 000 check-dams distributed in the Loess Plateau, with an estimate of the amount of sediment of 21 × 109 m3 and a soil organic carbon storage amount of 0.945 Pg. Our study reveals that check-dams in the Loess Plateau not only conserve soil and water but also sequester carbon.
KeywordsCheck-dam Carbon sequestration Sediments Soil erosion Loess Plateau Ecosystem services
This work was supported by the National Natural Science Foundation of China (No. 40901098 and 41230745) and the CAS/SAFEA International Partnership Program for Creative Research Teams of “Ecosystem Processes and Services.” We thank Geoffrey Hart (Montréal, Canada) for editing an early version of this paper.
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