Strategic management of grazing grassland systems to maintain and increase organic carbon in soils.

Understanding management-induced C sequestration potential in soils under agriculture, forestry, and other land use systems and their quantification to offset increasing greenhouse gases are of global concern. This chapter reviews management-induced changes in C storage in soils of grazing grassland systems, their impacts on ecosystem functions, and their adaptability and needs of protection across socio-economic and cultural settings. In general, improved management of grassland/pasture such as manuring/slurry application, liming and rotational grazing, and low to medium livestock units could sequester C more than under high intensity grazing conditions. Converting cultivated land to pasture, restoration of degraded land, and maximizing pasture phases in mixed-cropping, pasture with mixed-livestock, integrated forestry-pasturage of livestock (silvopastoral) and crop-forestry-pasturage of livestock (agro-silvopastoral) systems could also maintain and enhance soil organic C density (SOCp). In areas receiving low precipitation and having high erodibility, grazing exclusion might restore degraded grasslands and increase SOCp. Yet, optimizing C sequestration rates, sowing of more productive grass varieties, judicial inorganic and organic fertilization, rotational grazing, and other climate-resilient approaches could improve overall farm productivity and profitability and attain sustainability in livestock farming systems.

Bibliographic Details

Main Authors:	KHALIL, M. I., FRANCAVIGLIA, R., HENRY, B., KLUMPP, K., KONCZ, P., LLORENTE, M., MADARI, B. E., MUÑOZ-ROJAS, M., NERGER, R.
Other Authors:	MOHAMMAD IBRAHIM KHALIL, University College Dublin, Ireland; ROSA FRANCAVIGLIA, CREA-AA, Italy; BEVERLEY HENRY, Queensland University of Technology, Brisbane-Australia; KATJA KLUMPP, INRA, Clermont-Ferrand-france; PETER KONCZ, Duna-Ipoly National Park Directorate, Budapest-Hungary; MIREIA LLORENTE, University of Extremadura, Plasencia Campus-Spain; BEATA EMOKE MADARI, CNPAF; MIRIAM MUÑOZ-ROJAS, The University of New South Wales, Sydney-Australia; RAINER NERGER, Soil and More Impacts B.V., Hamburg-Germany.
Format:	Parte de livro biblioteca
Language:	Ingles English
Published:	2019-06-04
Subjects:	Carbono, Carbon sequestration, Grazing, Grasslands, Silvopastoral systems, Integrated agricultural systems, Intensive livestock farming,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1109626
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