A face infértil do Brasil: ciência, recursos hídricos e o debate sobre (in)fertilidade dos solos do cerrado brasileiro, 1892-1942

Silva, Claiton Márcio da

doi:10.1590/s0104-59702019000200007

Cited by 5 publications

(5 citation statements)

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“…A história da ocupação do DF nos mostra que há paralelismos temporais entre as políticas de transformação da região do Cerrado e o período de incremento de estudos científicos sistemáticos sobre o bioma, conforme já discutido em Claiton Silva (Silva, 2019) (Ferri,1983(Ferri, , 1994Faissol,1957;Silva, 2019;IBGE, 2010;Rangel, Lima, 2011). Nos anos de 1960, a pesquisa biológica e a agronômica estiveram associadas à ocupação, à preservação e ao ordenamento territorial (Ferri, 1983;IBAMA/FUNATURA,1998).…”

Section: P R E F á C I Ounclassified

Brasília e situações críticas: percepção de incêndios florestais nos 60 anos da capital federal, o conhecimento científico e gestão territorial

Tavares¹

2023

Perceção E Planeamento Na Redução E Gestão Do Risco De Catástrofes

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Incêndios Florestais marcam anualmente as paisagens do Cerrado no Distrito Federal do Brasil. Apesar do conhecimento científico acumulado sobre esse bioma, especialmente quanto à temática do fogo, as áreas remanescentes, decorrentes de medidas protetivas, não se beneficiam desse saber diretamente. As unidades de conservação e a percepção sobre suas paisagens afetadas por Incêndios Florestais são o objeto deste estudo, considerado no contexto de acelerada e progressiva urbanização. Há na recorrência dos Incêndios Florestais uma dimensão social associada aos atos da deflagração e um conflito local persistente que é difícil de ser apreendido. A análise qualitativa de um veículo de imprensa, o Correio Braziliense, publicado em Brasília, foi utilizada como recurso metodológico para caracterizar a historicidade e os traços dominantes de percepções disseminadas no longo prazo. A construção textual e imagética de significações sobre a paisagem, em 60 anos de Brasília, tende a dissociar a memória urbana da memória científica local no quadro territorial de ocorrências dos Incêndios Florestais.

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Section: P R E F á C I Ounclassified

Brasília e situações críticas: percepção de incêndios florestais nos 60 anos da capital federal, o conhecimento científico e gestão territorial

Tavares¹

2023

Perceção E Planeamento Na Redução E Gestão Do Risco De Catástrofes

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“…The transformation of the Cerrado into an agricultural frontier for the production of commodities unfolded through complex processes ripe for historical inquiry. Early studies of the ecology and the geographical characteristics of the biome were associated with major government projects for agricultural modernization 63 .…”

Section: Expansion Of the Agricultural Frontiermentioning

confidence: 99%

Challenging the Environmental History of the Cerrado Science, Biodiversity and Politics on the Brazilian Agricultural Frontier

Silva¹

2020

HALAC

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This article presents an overview of the environmental history of the Brazilian Cerrado, its environmental characteristics and the processes related to the historical change in the landscapes of this endangered ecosystem. It highlights competing classifications of the Cerrado, the role of politics in establishing them, and the environmental consequences of such classifications. More than just describing an environment, classifying an ecosystem is a political process that involves complex socio-environmental interactions. The sources used points out the different attempts to get to know and "conquered" the Cerrado, bringing together interdisciplinary perspectives from a variety of actors and institutions. Historiographic challenges go beyond environmental descriptions in that the socio-environmental interactions that made up this unique ecosystem are equally complex. This paper’s conclusions reinforce the interdisciplinary role of environmental history in the study of ecosystems and the complex relationship between culture and nature.

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“…6 These and posterior studies revealed that the sclerophylly and low frequency of woody species of the Cerrado is chiefly the result of a chronic low availability of soil mineral nutrients, combined with a high acidity and toxic levels of aluminum. 7,8 The 1940s investigations by the USP researchers, linking soil chemistry with the peculiar characteristics of the vegetation of the Cerrado, stand as the beginning of the ecological studies in Brazil. 9,10 The nutritional deficiency of the soils of Cerrado derives from its antiquity: the Cerrado domain in the Brazilian Plateau is home to some of the oldest soils on Earth, 8 dating to the Tertiary.…”

Section: Introductionmentioning

confidence: 99%

“…14 If, on the one hand, the soils of Cerrado are crucial limiting factors for agriculture implementation, on the other hand, the Cerrado's favorable climate, topography and open vegetation favor land occupation, mechanization and large-scale agriculture production. 7,15 Another factor that favored advances toward farming in the Cerrado was the absence, at the time, of laws aiming the protection of the biome. In fact, in the 1950's, virtually no voices by authorities, environmentalists and society were raised against the project and then the construction of Brasilia, the new capital of Brazil (inaugurated in April 1960).…”

Section: Introductionmentioning

confidence: 99%

Agriculture in the cerrado: a sleeping giant rose up

Salatino,

Faria Salatino

2023

MOJFPT

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Cerrado is a savanna biome, the second in extension among Brazilian ecosystems. The soils of the Cerrado are among the oldest on Earth. Weathering effects resulted in impoverished, acid soils in the Cerrado. Until the inauguration of Brasília (the capital of Brazil) in central Brazil, Cerrado was regarded as useless for agricultural exploitation. Research and implementation of techniques of soil fertilization, plant and animal genetics, breeding, and farming technology turned the Cerrado the main Brazilian area for food production. Notable gains in overall production and productivity of several crops were obtained. Over four decades, grain production in Brazil increased 6-fold, whereas the cultivated area increased 1.6-fold. Brazil became the third world’s food producer and the second top exporter of food products. On the other hand, much of the original extension of the Cerrado domain was replaced by farming fields. In consequence, Cerrado is presently the most threatened Brazilian biome, chiefly due to losses and fragmentation of natural habitats. A balance between farming and environmental protection of the Cerrado is needed, aiming a sustainable food production, by means of a harmonic convivence of farming and environment preservation.

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A face infértil do Brasil: ciência, recursos hídricos e o debate sobre (in)fertilidade dos solos do cerrado brasileiro, 1892-1942

Cited by 5 publications

References 6 publications

Brasília e situações críticas: percepção de incêndios florestais nos 60 anos da capital federal, o conhecimento científico e gestão territorial

Brasília e situações críticas: percepção de incêndios florestais nos 60 anos da capital federal, o conhecimento científico e gestão territorial

Challenging the Environmental History of the Cerrado Science, Biodiversity and Politics on the Brazilian Agricultural Frontier

Agriculture in the cerrado: a sleeping giant rose up

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