Wang Yafeng, Chen Liding, Gao Yang, Wang Shuai, Lü Yihe, Fu Bojie
State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, Beijing, 100085, China,
Ambio. 2014 Nov;43(7):926-31. doi: 10.1007/s13280-014-0518-7. Epub 2014 Apr 3.
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.
淤地坝是黄土高原控制土壤侵蚀最常见的工程措施。然而，淤地坝对碳固存以及泥沙输移和沉积的影响尚未在大面积范围内得到评估。在本研究中，我们评估了黄土高原淤地坝的碳固存功能。结果表明，黄土高原分布着约11000座淤地坝，估算泥沙量为21×10⁹立方米，土壤有机碳储量为0.945Pg。我们的研究表明，黄土高原的淤地坝不仅能保持水土，还能固碳。
