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Applied and Environmental Soil Science
Volume 2014 (2014), Article ID 821768, 9 pages
http://dx.doi.org/10.1155/2014/821768
Review Article

Soil Carbon Sequestration Resulting from Biosolids Application

1Department of Natural Resources and Environment, School of Agriculture, University of Buenos Aires, Avenue San Martin 4453, 1417 DSE, Buenos Aires, Argentina
2Catholic University of Brasilia, Caixa Postal 04.401, 70910-970 Brasilia, DF, Brazil
3Department of Agrifood Production and Environmental Sciences, University of Florence, P. le delle Cascine 28, 50144 Florence, Italy

Received 6 August 2013; Revised 22 November 2013; Accepted 3 December 2013; Published 20 January 2014

Academic Editor: Alejandro Valdecantos

Copyright © 2014 Silvana I. Torri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Carbon (C) sequestration in soils through the increase of the soil organic carbon (SOC) pool has generated broad interest to mitigate the effects of climate change. Biosolids soil application may represent a persistent increase in the SOC pool. While a vast literature is available on the value of biosolids as a soil conditioner or nutrient source in agricultural systems, there is still limited knowledge on soil sequestration mechanisms of biosolids-borne C or the main factors influencing this capacity. The emerging challenges posed by global environmental changes and the stringent needs to enhance C storage call for more research on the potential of soil biosolids incorporation as a sustainable C storage practice. This review addresses the potential of C sequestration of agricultural soils and opencast mines amended with biosolids and its biological regulation.