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      Agroecology to the rescue of food security and germplasm conservation in a global market economy

      International Journal of Agricultural Resources, Governance and Ecology
      Inderscience Publishers

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          Agricultural sustainability and intensive production practices.

          A doubling in global food demand projected for the next 50 years poses huge challenges for the sustainability both of food production and of terrestrial and aquatic ecosystems and the services they provide to society. Agriculturalists are the principal managers of global usable lands and will shape, perhaps irreversibly, the surface of the Earth in the coming decades. New incentives and policies for ensuring the sustainability of agriculture and ecosystem services will be crucial if we are to meet the demands of improving yields without compromising environmental integrity or public health.
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            Productivity and sustainability influenced by biodiversity in grassland ecosystems

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              Carbon-negative biofuels from low-input high-diversity grassland biomass.

              Biofuels derived from low-input high-diversity (LIHD) mixtures of native grassland perennials can provide more usable energy, greater greenhouse gas reductions, and less agrichemical pollution per hectare than can corn grain ethanol or soybean biodiesel. High-diversity grasslands had increasingly higher bioenergy yields that were 238% greater than monoculture yields after a decade. LIHD biofuels are carbon negative because net ecosystem carbon dioxide sequestration (4.4 megagram hectare(-1) year(-1) of carbon dioxide in soil and roots) exceeds fossil carbon dioxide release during biofuel production (0.32 megagram hectare(-1) year(-1)). Moreover, LIHD biofuels can be produced on agriculturally degraded lands and thus need to neither displace food production nor cause loss of biodiversity via habitat destruction.
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                Author and article information

                Journal
                International Journal of Agricultural Resources, Governance and Ecology
                IJARGE
                Inderscience Publishers
                1462-4605
                1741-5004
                2011
                2011
                : 9
                : 1/2
                : 1
                Article
                10.1504/IJARGE.2011.040215
                ed2b508c-898a-4c48-848e-03eb4cd9d0cd
                © 2011
                History

                Genetics
                Genetics

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