Articles | Volume 12, issue 15
https://doi.org/10.5194/bg-12-4831-2015
https://doi.org/10.5194/bg-12-4831-2015
Research article
 | 
14 Aug 2015
Research article |  | 14 Aug 2015

Ground cover rice production systems increase soil carbon and nitrogen stocks at regional scale

M. Liu, M. Dannenmann, S. Lin, G. Saiz, G. Yan, Z. Yao, D. E. Pelster, H. Tao, S. Sippel, Y. Tao, Y. Zhang, X. Zheng, Q. Zuo, and K. Butterbach-Bahl

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Cited articles

Amundson, R.: The carbon budget in soils, Annu. Rev. Earth Pl. Sc., 29, 535–562, 2001.
Bedard-Haughn, A., van Groeningen, J. W., and van Kessel, C.: Tracing 15N through landscapes: potential uses and precautions, J. Hydrol., 272, 175–190, 2003.
Blake, G. R. and Hartge, K. H.: Bulk density, in: Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods, edited by: Arnold, K., Madison, Wisconsin, American society of agronomy Inc, 363–375, 1986.
Bouman, B. A. M.: A conceptual framework for the improvement of crop water productivity at different spatial scales, Agr. Syst., 93, 43–60, 2007.
Bronson, K. F., Cassman, K. G., Wassmann, R., Olk, D., van Noordwijk, M., and Garrity, D. P.: Soil carbon dynamics in different cropping systems in principal Ecoregions of Asia, in: Management of Carbon Sequestration in Soil, edited by: Lal, R., Kimble, J. M., Follett, R. F., and Stewart, Boca Raton, CRC Press Inc, 35–57, 1997.
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Short summary
We demonstrate for the first time that a ground cover rice production system (GCRPS) significantly increased soil organic C and total N stocks at spatially representative paired sites under varying edaphic conditions. Our results suggest that GCRPS is a stable and sustainable technique that maintains key soil functions, while increasing rice yield and expanding the cultivation into regions where it has been hampered by low seasonal temperatures and/or a lack of irrigation water.
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