Articles | Volume 13, issue 2
Research article
28 Jan 2016
Research article |  | 28 Jan 2016

Soil carbon sequestration by three perennial legume pastures is greater in deeper soil layers than in the surface soil

X.-K. Guan, N. C. Turner, L. Song, Y.-J. Gu, T.-C. Wang, and F.-M. Li

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Cited articles

Chen, B. and Nie, C.: Research of Astragalus adsurgens Pall. root system, Journal of Gansu Agricultural University, 2, 71–75, 1978 (in Chinese with English abstract).
Chen, H., Shao, M., and Li, Y.: Soil desiccation in the Loess Plateau of China, Geoderma, 143, 91–100, 2008.
Cheng, J., Wan, H. E., and Wang, J.: Alfalfa growth and its relation with soil water status in loess hilly and gully region, J. Appl. Ecol., 16, 435–438, 2005 (in Chinese with English abstract).
Cheng, J. M., Wan, H. E., Wang, J., and Yong, S. P.: Over depletion and recovery of soil moisture on Astragalus adsurgens grasslands in the loess hilly-gully region, Acta Ecologica Sinica, 24, 2979–2983, 2004 (in Chinese with English abstract).
Fan, J. W., Du, Y. L., Turner, N. C., Wang, B. R., Fang, Y., Xi, Y., Guo, X. R., and Li, F. M.: Changes in root morphology and physiology to limited phosphorus and moisture in a locally-selected cultivar and an introduced cultivar of Medicago sativa L. growing in alkaline soil, Plant Soil, 392, 215–226, 2015.
Short summary
Revegetation of degraded arable land with perennial legumes in semiarid areas of China is expected to increase soil carbon sequestration. In this study we assessed the effect of alfalfa, bush clover and milk vetch on the SOC concentration and SOC stock accumulated annually over a 2 m soil profile. The results indicated that conversion of arable land to perennial legume pasture resulted in a significant increase in SOC, particularly at soil depths below 1 m.
Final-revised paper