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compatibility of agricultural intensification in a global hotspot of smallholder agrobiodiversity (Bolivia)

Zimmerer, Karl S.

Proceedings of the National Academy of Sciences - PNAS, 2013-02, Vol.110 (8), p.2769-2774 [Periódico revisado por pares]

Washington, DC: National Academy of Sciences

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Título:
compatibility of agricultural intensification in a global hotspot of smallholder agrobiodiversity (Bolivia)
Autor: Zimmerer, Karl S.
Assuntos: Agricultural development. Rural area planning ; Agriculture ; Agroecology ; Agroecosystems ; Agronomy. Soil science and plant productions ; Animal and plant ecology ; Animal, plant and microbial ecology ; Applied ecology ; Biodiversity ; Biodiversity conservation ; Biological and medical sciences ; Bolivia ; Conservation ; Conservation of Natural Resources ; Corn ; Crops ; Ecological sustainability ; Environment and sustainable development ; Environmental conservation ; Farmers ; Fundamental and applied biological sciences. Psychology ; General agroecology ; General agroecology. Agricultural and farming systems. Agricultural development. Rural area planning. Landscaping ; General agronomy. Plant production ; General aspects ; Generalities. Agricultural and farming systems. Agricultural development ; Land use ; Land use planning ; Social Sciences ; Sustainable agriculture ; Sustainable development ; Synecology
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2013-02, Vol.110 (8), p.2769-2774
Notas: http://dx.doi.org/10.1073/pnas.1216294110
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Edited by B. L. Turner, Arizona State University, Tempe, AZ, and approved December 21, 2012 (received for review September 21, 2012)
Author contributions: K.S.Z. designed research, performed research, analyzed data, and wrote the paper.
Descrição: Integrating the conservation of biodiversity by smallholder farmers with agricultural intensification is increasingly recognized as a leading priority of sustainability and food security amid global environmental and socioeconomic change. An international research project investigated the smallholder agrobiodiversity of maize (corn) in a global hotspot (Bolivia) undergoing significant intensification. Peach-based intensification was pronounced (300–400%) and prolonged (2000–2010) in study areas. Intensification and maize agrobiodiversity were found to co-occur within smallholder landscapes. Interactions of these field systems did not trigger land-change tipping points leading to landrace extirpation. By 2010 maize landraces in the study areas still demonstrated high levels of taxonomic and ecological biodiversity and contributed significantly to this crop’s agrobiodiversity at national (31%) and hemispheric (3%) scales. Social and ecological resilience and in situ conservation of the maize agrobiodiversity by Bolivian smallholders was enabled through robust linkages to off-farm migration; resource access and asset capabilities among both traditional and nontraditional growers; landrace agroecology and food uses; and innovative knowledge and skills. The smallholders’ resilience resulting from these linkages was integral to the conditional success of the in situ conservation of maize agrobiodiversity. Environment–development interactions both enabled smallholders’ agrobiodiversity resilience and influenced the limits and vulnerability of agrobiodiversity. Scientific policy recommendations regarding land-use planning and sustainability analysis are targeted to specific Río+20 priorities for agrobiodiversity.
Editor: Washington, DC: National Academy of Sciences
Idioma: Inglês

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compatibility of agricultural intensification in a global hotspot of smallholder agrobiodiversity (Bolivia)

Zimmerer, Karl S.

Washington, DC: National Academy of Sciences

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