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Deep Carbon Sequestration in Cropping Systems

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Book cover Sustainable Agriculture Reviews 29

Part of the book series: Sustainable Agriculture Reviews ((SARV,volume 29))

Abstract

There is considerable debate about the global amount of soil organic carbon (SOC), which exceeds the amount of carbon stored in the atmosphere and vegetation. Small changes in the SOC storage could impact significantly the atmospheric carbon concentration, although fluxes may vary widely in response to the spatial variability of environmental and anthropogenic driving factors. Particular attention towards carbon sequestration has been traditionally focused on topsoil layers of agricultural lands, although recent findings suggests that subsoil is pivotal to increase the SOC stock, and its stabilization. This implies that management strategies aiming to efficient deep SOC storage are still unexplored. Here, we review existing knowledge about the amount of SOC stored in soils globally, and explore factors and processes controlling its distribution. Best management practices to increase the SOC stock, and methods to quantify their effects were finally discussed.

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Abbreviations

BD:

Bulk density

C:

Carbon

DOC:

Dissolved organic carbon

ECa:

Apparent electrical conductivity

ESM:

Equivalent soil mass

NT:

No-till

SOC:

Soil organic carbon

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Acknowledgements

The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007–2013) under grant agreement No. 603498 (RECARE project).

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Correspondence to Francesco Morari .

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Morari, F., Berti, A., Dal Ferro, N., Piccoli, I. (2019). Deep Carbon Sequestration in Cropping Systems. In: Lal, R., Francaviglia, R. (eds) Sustainable Agriculture Reviews 29. Sustainable Agriculture Reviews, vol 29. Springer, Cham. https://doi.org/10.1007/978-3-030-26265-5_2

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