Articles | Volume 13, issue 15
Research article
11 Aug 2016
Research article |  | 11 Aug 2016

Fate of rice shoot and root residues, rhizodeposits, and microbe-assimilated carbon in paddy soil – Part 1: Decomposition and priming effect

Zhenke Zhu, Guanjun Zeng, Tida Ge, Yajun Hu, Chengli Tong, Olga Shibistova, Xinhua He, Juan Wang, Georg Guggenberger, and Jinshui Wu

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Cited articles

Apostel, C., Dippold, M., and Kuzyakov, Y.: Biochemistry of hexose and pentose transformations in soil analyzed by position-specific labeling and 13C-PLFA, Soil Biol. Biochem., 80, 199–208, 2015.
Basler, A., Dippold, M., Helfrich, M., and Dyckmans, J.: Microbial carbon recycling: an underestimated process controlling soil carbon dynamics – Part 2: A C3-C4 vegetation change field labelling experiment, Biogeosciences, 12, 6291–6299,, 2015.
Bastida, F., Torres, I. F., Hernández, T., Bombach, P., Richnow, H. H., and García, C.: Can the labile carbon contribute to carbon immobilization in semiarid soils? Priming effects and microbial community dynamics, Soil Biol. Biochem., 57, 892–902, 2013.
Baumann, K., Marschner, P., Smernik, R. J., and Baldock, J. A.: Residue chemistry and microbial community structure during decomposition of eucalypt, wheat and vetch residues, Soil Biol. Biochem., 41, 1966–1975, 2009.
Blagodatsky, S., Blagodatskaya, E., Yuyukina, T., and Kuzyakov, Y.: Model of apparent and real priming effects: Linking microbial activity with soil organic matter decomposition, Soil Biol. Biochem., 42, 1275–1283, 2010.
Short summary
The main contribution of our study is our finding that rhizodeposits and microbe-assimilated carbon contribute significantly to the sequestration of carbon substrates in rice paddy soils. This contribution is theoretically and practically relevant because few studies have investigated the effects of different carbon substrates on the mineralization of native soil organic carbon and our findings have immediate applications for improving the fertility of paddy soils and mitigating global warming.
Final-revised paper