Alternative biodiesel feedstock systems in the semi-arid region of Brazil : implications for ecosystem services.

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dc.contributor.authorSánchez, Antonio Santos
dc.contributor.authorAlmeida, Mateus Bastos
dc.contributor.authorTorres, Ednildo Andrade
dc.contributor.authorKalid, Ricardo de Araújo
dc.contributor.authorCohim, Eduardo
dc.contributor.authorGasparatos, Alexandros
dc.date.accessioned2018-01-18T12:50:01Z
dc.date.available2018-01-18T12:50:01Z
dc.date.issued2017
dc.description.abstractThe Northeast region of Brazil has low levels of human development and a marginal environment subject to chronic water scarcity. This paper assesses the potential impacts of bioenergy production from local varieties of castor oil plant and jatropha that could reduce the import of energy in the region, while developing its economy. Biodiesel systems based on these crops can be suitable for the Northeast region as they have low water needs, and are either indigenous or have shown excellent adaptation to the local climate. Apart from biodiesel production, the residue from their processing can be a valuable resource usable for biogas production and biofertilizers. Using the ecosystem services approach, five land management alternatives are compared: (i) Caatinga woodland (a type of dry savannah native to the region), (ii) a scheme of local jatropha varieties and vegetation for Caatinga forest restoration, (iii) a crop rotation scheme of castor oil plant and cowpeas, (iv) cowpea mono-cropping, and (v) pasture. Based on the analysis of secondary data, some provisioning and regulating services were assessed quantitatively, while others qualitatively. The results suggest that the conversion of (i) cowpea mono-cropping to a rotation of cowpeas and castor and (ii) degraded pastures to a jatropha-Caatinga forest restoration scheme can provide a bundle of provisioning, regulating and supporting ecosystem services. Feedstock for bioenergy is the most important ecosystem service derived from these multifunctional landscapes. In particular converting pasture to a jatropha-Caatinga forest restoration scheme could provide per hectare 0.7 t of oilseeds for biodiesel production and 1.8 GJ of usable energy, in the form of biogas from the residual seedcake. The castor-cowpea rotation scheme could provide per hectare 1.5 t of oilseeds for biodiesel production together with 2.2 GJ of usable biogas energy, per hectare.pt_BR
dc.identifier.citationSÁNCHEZ, A. S. et al. Alternative biodiesel feedstock systems in the semi-arid region of Brazil: implications for ecosystem services. Renewable & Sustainable Energy Reviews, v. 01, p. 1-15, 2017. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1364032117310274>. Acesso em: 29 set. 2017.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.rser.2017.06.080
dc.identifier.issn1364-0321
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/9256
dc.identifier.uri2http://www.sciencedirect.com/science/article/pii/S1364032117310274pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectBiofuel Crop rotationpt_BR
dc.subjectEcosystem servicespt_BR
dc.subjectJatrophapt_BR
dc.subjectCastor oilpt_BR
dc.titleAlternative biodiesel feedstock systems in the semi-arid region of Brazil : implications for ecosystem services.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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