Mudanças no uso da terra decorrentes da expansão da cultura da cana-de-açúcar na região oeste do estado de São Paulo

Lourenzani, Wagner Luiz; Caldas, Marcellus M.

doi:10.1590/0103-8478cr20140186

Cited by 14 publications

(10 citation statements)

References 15 publications

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“…All these aspects of cattle ranching lead to generally higher landscape heterogeneity within this crop type. Sugarcane has replaced cattle pastures and other crops recently in southeast Brazil (Rudorff et al 2010;Lourenzani and Caldas 2014), a tendency likely to continue due to Brazil's high ethanol production goals (Vian et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Highly disparate bird assemblages in sugarcane and pastures: implications for bird conservation in agricultural landscapes

Alexandrino¹,

Buechley²,

Forte³

et al. 2019

NBC

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Sugarcane and cattle pastures are two of the most widespread and economically important agricultural landscapes. However, in Brazil, they have not been properly investigated for their importance to native birds and wildlife conservation. Thus, we aim to characterize and compare bird assemblages of sugarcane and cattle pastures; and understand how landscape features within both habitats influence bird assemblages. We surveyed birds in both agricultural habitats over one year, and then investigated the relationship between species richness and composition with landscape diversity, matrix permeability, and the size and distribution of natural forests close to both habitats. We observed 132 species in cattle pastures and only 72 in sugarcane (48% bird community similarity). We further evaluated the richness and relative abundance of avian ecological groups, including habitat specialists and habitat generalists, insectivores, omnivores, granivores and frugivores. All avian groups were higher in pastures, the habitat where landscape heterogeneity and number of scattered trees was higher. Our results show that overall increasing landscape heterogeneity favors an assemblage with higher richness and composed by species with more diverse ecological functions. Therefore, we argue in favor of management practices that incorporate heterogeneity in agricultural landscapes, mainly in sugarcane fields where a homogeneous scheme has been used. Otherwise, the potential of agricultural landscapes for bird conservation will be highly hindered, particularly if the sugarcane sector expands to other agricultural lands.

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Section: Introductionmentioning

confidence: 99%

Highly disparate bird assemblages in sugarcane and pastures: implications for bird conservation in agricultural landscapes

Alexandrino¹,

Buechley²,

Forte³

et al. 2019

NBC

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“…This process of strong expansion leads to complex and multidimensional transformations in the regions. Several scientific debates have been related to the sustainability of bioenergy production, with emphasis on environmental, social, and food production and food security impacts (Gilio & Moraes, 2016;Lourenzani & Caldas, 2014).…”

Section: Methodsmentioning

confidence: 99%

“…The challenges of incorporating technology, the low dynamism and inconsistencies in the productive environment, have prevented the increase of sugarcane agricultural productivity (Santos, 2016). The "area effect" is an indicator of variation in sugarcane production, resulting from the incorporation of new areas and/or crop substitution, which are related to changes in the agrarian structure (Camara & Caldarelli, 2016;Lourenzani & Caldas, 2014. The "productivity effect" represents the variation in sugarcane production due to the intensification of the means of production, including the improvement of applied technology, the use of more adapted sugarcane varieties, mechanization efficiency in planting and harvesting, and increasing production per unit of area (Abdala & Ribeiro, 2011;Nyko et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

“…The interest of the countries in cleaner solutions for the transport sector and the launching of flex fuel vehicles motivated the increase of ethanol production, and consequently, promoted a new phase of expansion of the crop in Brazil (Spera et al, 2017;Lourenzani & Caldas, 2014;Camargo et al, 2008). According to the authors, the growth of the area destined to sugarcane, industrial plants and the construction of new plants were the result of decisions of the private initiative and strongly stimulated by public policies.…”

Section: Expansion Of Sugarcane Culture In Regions Of New Agriculturamentioning

confidence: 99%

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Analysis of the agricultural productivity of the sugarcane crop in regions of new agricultural expansions of sugarcane

et al. 2019

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The launching of biofuel vehicles in 2003 led to ethanol demand increase and a new phase of expansion of sugarcane cultivation in Brazil. Although the increase in area of production and the quantity of sugarcane produced have been very important to Brazilian agribusiness, the recent agricultural productivity rate has slowed. In this context, this article analyzed the factors that influence the growth rate of sugarcane productivity in the regions of new agricultural expansions, specifically in the states of Mato Grosso do Sul and Goias. For the collection and data analysis, we used bibliographical and documentary research. The shift-share method was used to analyze the evolution of sugarcane production, through the decomposition of this variable into two factors: area effect and productivity effect. The results show that the increase in production in the region under analysis was mainly due to the incorporation of new planting areas and not to an increase in productivity. In addition, structural factors have negatively impacted crop performance. The analysis indicates that there is a slow rhythm of sugarcane fields’ renovation and the adoption of old varieties. Although the mechanization index is high in the studied regions, difficulties of technological adaptation still provide deficiency in the agricultural performance of sugarcane.

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“…The growth of bioethanol demand in the 2000s took place in a moment that the traditional regional of São Paulo were dealing with problems with competition for sugarcane, what rose the prices of land and acquisition of raw material (BELIK et al, 2017). Therefore, new investments in bioethanol prioritized zones where sugarcane was not a relevant activity, like the western region of São Paulo, the south of Goiás, the triangle of Minas Gerais, and southwest of Mato Grosso do Sul (ROSENDO;MATOS, 2017;PIETRAFESA;PIETRAFESA, 2016;LOURENZANI;CALDAS, 2014).…”

Section: Introductionmentioning

confidence: 99%

Regional inequalities in a learning economy: the case of Brazilian bioethanol production

Mesquita¹,

Luna²,

Souza³

2019

Blucher Engineering Proceedings

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Resumo O objetivo do artigo é analisar as desigualdades regionais na produção de bioetanol, tendo como foco o aprendizado e a geração de conhecimento. O artigo tem dois pressupostos centrais: primeiro, aprendizado é um recurso chave no capitalismo moderno; segundo, esse atributo é desigualmente distribuído no espaço. Para capturar esse fenômeno na produção de bioetanol, dividimos a região Centro-Sul em três: as regiões tradicionais de produção do Estado de São Paulo; as novas regiões de expansão do Oeste Paulista; e as regiões complementares a São Paulo em outras unidades federativas. Dividimos o conhecimento e o aprendizado em três dimensões: a experiencia dos trabalhadores, o grau educacional e a pesquisa acadêmica sobre cana-de-açúcar. Os resultados indicam o avanço da acumulação de experiencia e do nível educacional da mão-de-obra no Oeste Paulista e nas regiões complementares, mas uma concentração da pesquisa acadêmica nas regiões tradicionais.

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Mudanças no uso da terra decorrentes da expansão da cultura da cana-de-açúcar na região oeste do estado de São Paulo

Abstract: RESUMO A demanda por alternativas energéticas tem aumentando a produção mundial de biocombustíveis e, consequentemente, o cultivo das culturas agrícolas. No Brasil, o lançamento dos veículos bicombustíveis propiciou a retomada

Cited by 14 publications

References 15 publications

Highly disparate bird assemblages in sugarcane and pastures: implications for bird conservation in agricultural landscapes

Highly disparate bird assemblages in sugarcane and pastures: implications for bird conservation in agricultural landscapes

Analysis of the agricultural productivity of the sugarcane crop in regions of new agricultural expansions of sugarcane

Regional inequalities in a learning economy: the case of Brazilian bioethanol production

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