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      Tropical forage legumes for environmental benefits: An overview Translated title: Leguminosas forrajeras tropicales para beneficios ambientales: Una sinopsis

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          Abstract

          Abstract Ruminant livestock production in the tropics, particularly when based on pastures, is frequently blamed for being detrimental to the environment, allegedly contributing to: (1) degradation and destruction of ecosystems, including degradation and loss of soil, water and biodiversity; and (2) climate change (global warming). In this paper we argue that, rather than being detrimental, tropical forage legumes can have a positive impact on the environment, mainly due to key attributes that characterize the Leguminosae (Fabaceae) family: (1) symbiotic nitrogen fixation; (2) high nutritive value; (3) deep-reaching tap-root system; (4) wide taxonomic and genetic diversity; and (5) presence of particular secondary metabolites. Although there are also potential negative aspects, such as soil acidification and the risks of introduced legumes becoming invasive weeds, we submit that legumes have potential to contribute significantly to sustainable intensification of livestock production in the tropics, along with the provision of ecosystem services. To further assess, document and realize this potential, research for development needs in a range of areas are indicated.

          Translated abstract

          Resumen La producción ganadera de rumiantes en el trópico, especialmente cuando es basada en pasturas, frecuentemente es considerada como perjudicial para el medio ambiente, ya que supuestamente contribuye con: (1) la degradación y destrucción de ecosistemas, incluyendo la pérdida de suelo, agua y biodiversidad; y (2) el cambio climático (calentamiento global). En el artículo se exponen argumentos para mostrar que, en lugar de ser perjudiciales, las leguminosas forrajeras tropicales pueden impactar positivamente en el medio ambiente, principalmente debido a sus atributos clave que son característicos de la familia de las Leguminosae (Fabaceae): (1) fijación simbiótica de nitrógeno; (2) alto valor nutritivo; (3) sistema de raíz pivotante profundo; (4) amplia diversidad taxonómica y genética; y (5) presencia de metabolitos secundarios particulares. Aunque se deben reconocer aspectos negativos como la contribución potencial a la acidificación del suelo y el riesgo de convertirse en malezas invasoras, concluimos que las leguminosas forrajeras tienen un potencial significativo para contribuir a la intensificación sostenible de la producción ganadera en el trópico, junto con la prestación de servicios ecosistémicos. Sugerimos una serie de áreas donde se requiere de investigación para evaluar más a fondo, documentar y realizar este potencial.

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          Livestock: On our plates or eating at our table? A new analysis of the feed/food debate

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            Carbon storage by introduced deep-rooted grasses in the South American savannas

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              Native trees and shrubs for the productive rehabilitation of tropical cattle ranching lands

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                tgft
                Tropical Grasslands-Forrajes Tropicales
                Trop. Grassl.-Forrajes Trop.
                Centro Internacional de Agricultura Tropical (CIAT) (Cali, Valle, Colombia )
                2346-3775
                April 2018
                : 6
                : 1
                : 1-14
                Affiliations
                [1] Cali orgnameInternational Center for Tropical Agriculture (CIAT) Colombia
                [3] Canberra orgnameAustralian Centre for International Agricultural Research (ACIAR) Australia
                [4] Haikou Hainan orgnameChinese Academy of Tropical Agricultural Sciences (CATAS) China
                [2] Peoria IL orgnameNational Center for Agricultural Utilization Research, ARS, USDA, USA
                Article
                S2346-37752018000100001
                10.17138/tgft(6)1-14
                e57c34d4-b720-414c-ab82-3a7241a49be3

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 23 October 2017
                : 12 January 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 95, Pages: 14
                Product

                SciELO Colombia

                Categories
                Review Paper

                Biodiversidad,emisiones de GEI,fijación simbiótica de nitrógeno,mejoramiento del suelo,rehabilitación de tierras,servicios ecosistémicos,Biodiversity,ecosystem services,GHG emissions,land rehabilitation,soil enhancement,symbiotic nitrogen fixation

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