Articles | Volume 15, issue 1
Biogeosciences, 15, 297–317, 2018
Biogeosciences, 15, 297–317, 2018
Research article
15 Jan 2018
Research article | 15 Jan 2018

High organic inputs explain shallow and deep SOC storage in a long-term agroforestry system – combining experimental and modeling approaches

Rémi Cardinael et al.

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Cited articles

Ahrens, B., Braakhekke, M. C., Guggenberger, G., Schrumpf, M., and Reichstein, M.: Contribution of sorption, DOC transport and microbial interactions to the 14C age of a soil organic carbon profile: Insights from a calibrated process model, Soil Biol. Biochem., 88, 390–402, 2015.
Albrecht, A. and Kandji, S. T.: Carbon sequestration in tropical agroforestry systems, Agr. Ecosyst. Environ., 99, 15–27, 2003.
Anderson, S. H., Udawatta, R. P., Seobi, T., and Garrett, H. E.: Soil water content and infiltration in agroforestry buffer strips, Agroforest. Syst., 75, 5–16, 2009.
Andrianarisoa, K., Dufour, L., Bienaime, S., Zeller, B., and Dupraz, C.: The introduction of hybrid walnut trees (Juglans nigra  ×  regia cv. NG23) into cropland reduces soil mineral N content in autumn in southern France, Agroforest. Syst., 90, 193–205, 2016.
Baisden, W. T. and Parfitt, R. L.: Bomb 14C enrichment indicates decadal C pool in deep soil?, Biogeochemistry, 85, 59–68, 2007.
Short summary
The introduction of trees in an agricultural field modifies organic matter (OM) inputs to the soil (litterfall, root litter), the microclimate, and the stabilization and decomposition processes of OM. These changes could affect soil organic carbon (SOC) storage, but the importance of each process is not well known. In a long-term agroforestry trial, we showed that SOC storage could be explained by high OM inputs to the soil but that enhanced decomposition could also have reduced this potential.
Final-revised paper