Land use change in the Amazon estuary: Patterns of caboclo settlement and landscape management

Brondízio, Eduardo S.; Moran, Emílio F.; Mausel, Paul W.; Wu, You

doi:10.1007/bf02168853

Cited by 118 publications

(51 citation statements)

References 7 publications

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“…Ademais, esse modelo se apresentou mais custoso em termos de trabalho e capital, além de não ter atingido nenhum tipo de sustentabilidade. Isto fica evidente pelas grandes áreas que têm sido abandonadas para sucessão, apesar da disponibilidade de tratores para controlar a invasão de ervas daninhas (Brondízio et al, 1994). Neste sentido, Cairns & Garriy (1999) advogam a adoção de abordagens participativas locais para a identificação de alternativas ao corte e queima.…”

Section: Alternativas à Agricultura De Corte E Queimaunclassified

“…Todavia, apesar dos avanços na compreensão dos sistemas agrícolas de corte e queima em florestas tropicais observados nas últimas décadas, muitas das alternativas propostas para reduzir seus impactos negativos acabam direcionando as atividades agrícolas para sistemas de cultivo intensivo e estritamente voltados para o mercado, e exemplos de insucesso vêm proliferando na literatura (Brondízio et al, 1994;Jakobsen, 2006;Ketterings et al, 1999). Dessa forma, conforme ressaltado por Brown & Schreckenberg (1998, p. 13), podemos concluir que até que sejam encontradas formas de tratar as limitações institucionais e legais de maneira aceitável aos agricultores de coivara, aqueles responsáveis por intervenções de desenvolvimento talvez devam ser orientados a apoiar capacidades inovadoras dentro dos limites do sistema, ao invés de tentar implantar sistemas alternativos de cultivo permanente com efeitos sociais e ambientais incertos …”

Section: Conclusãounclassified

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A agricultura de corte e queima: um sistema em transformação

Júnior

Murrieta

Adams

2008

Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.

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IIIResumo: A agricultura de corte e queima é praticada há milhares de anos nas áreas florestadas do planeta, principalmente nas regiões tropicais. Sua prática envolve uma gama de técnicas que denotam seu caráter diversificado e itinerante, aproveitando o capital energético da floresta em recomposição. Muitos estudos atestam a sustentabilidade desses sistemas quando praticados tradicionalmente e sob baixas densidades populacionais, mantendo, ou mesmo, promovendo a biodiversidade local e garantindo a subsistência de muitas populações pobres rurais. No entanto, é crescente na literatura acadêmica e no debate político o papel que a agricultura de corte e queima vem desempenhando no desmatamento e demais impactos ambientais e socioeconômicos. Esse processo é conseqüência das mudanças no uso do solo, da intensificação agrícola e do aumento demográfico que, estão alterando as práticas e comprometendo a sustentabilidade desses sistemas agrícolas tradicionais. No rastro dessas preocupações, este estudo traz uma revisão do tema na literatura com os objetivos de traçar um panorama geral do que foi produzido até o momento, identificar as principais correntes teóricas envolvidas e apontar as alternativas propostas para sua manutenção.Palavras-chave: Agricultura de corte e queima. Cultivo itinerante. Mudanças no uso do solo. Florestas tropicais. Sustentabilidade.Abstract: Slash-and-burn agriculture has been practiced for thousands of years in the forests around the world, especially in the tropics, where it provides for the livelihood of countless poor rural populations. Characterized by an array of techniques based on crop diversification and shifting land use, this cultivation system has on the utilization of forest decomposing vegetation´s energetic capital its main asset. Many studies claim that slash-and-burn agriculture is sustainable only when performed under conditions of low human demographic density and maintenance or even increase of local biodiversity. However, it is growing in the academic literature, as well as in development debates, the concern regarding the role that this system has been playing in the deforestation of the planet´s tropical forests. This process appears to be closely linked to changes in land use patterns (agricultural intensification) and urban and rural demographic growth. On the thread of these concerns, this article presents a critical review of the international and national academic literature on slash-and-burn agriculture. Thus, this review intend to draw a broad scenario of the current academic debate on this issue, as well as to identify the main alternatives strategies proposed to maintain or replace this cultivation system.

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Section: Alternativas à Agricultura De Corte E Queimaunclassified

Section: Conclusãounclassified

A agricultura de corte e queima: um sistema em transformação

Júnior

Murrieta

Adams

2008

Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.

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“…Optical remote sensing has been used extensively to map the extent and rates of deforestation (Tucker et al 1984, Malingreau and Tucker 1988, Skole and Tucker 1993 and the extent and temporal dynamics of secondary vegetation (Mausel et al 1993, Brondizio et al 1994, Adams et al 1995, Alves and Skole 1996, Foody et al 1996, Steininger 1996. Recent results from NASA's Landsat Path nder project have revealed that there are extensive areas of secondary vegetation throughout Continental Southeast Asia and Amazonia.…”

Section: Remote Sensing Land Use and Land Cover Change In Tropicsmentioning

confidence: 99%

Assessment of JERS-1 SAR for monitoring secondary vegetation in Amazonia: I. Spatial and temporal variability in backscatter across a chrono-sequence of secondary vegetation stands in Rondonia

Salas¹,

Ducey²,

Rignot³

et al. 2002

International Journal of Remote Sensing

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Abstract. Quanti cation of the direct impact of land use in the tropics on net biotic carbon ux relies on estimates of rates of deforestation, pre-and postdisturbance biomass, and fate of the cleared land. While existing remote sensing applications are providing estimates of the rates of deforestation and the fate of the cleared land (pasture, croplands, or secondary vegetation), techniques for estimating biomass of natural systems with remote sensing are needed. Synthetic Aperture Radar (SAR) presents a unique opportunity for imaging tropical forests under most cloud conditions and potentially provides information on vegetation biomass. Models for estimating above-ground biomass from SAR data have been developed. In this paper we examine the temporal and spatial variability of mean normalized radar cross-section across a chrono-sequence of secondary vegetation stands and clearings in Rondonia, Brazil. We also assess the impact of the observed temporal and spatial variability in normalized radar cross-section on estimating biomass of secondary vegetation stands. Results indicate that, while quantitative estimates of biomass are not stable due to intrinsic texture, system noise, and environmental eVects, JERS-1 data are still useful for categorizing relative diVerences in development of secondary vegetation stands. Merging Japanese Earth Resources Satellite 1 (JERS-1) SAR data with Landsat Thematic Mapper (TM) derived age information data provide improved characterization of clearings and secondary vegetation in Rondonia.

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“…Studies of resource use by tropical peasantries are typically restricted to single communities or localities (e.g. Brondizio et al 1994;Caviglia-Harris and Sills 2005;Coomes and Burt 2001). Few studies have actually compared populations living in different kinds of tropical environments, using qualitative and quantitative methods, to explore whether or why there are links between specific socio-historic populations and current livelihoods.…”

Section: Introductionmentioning

confidence: 99%

Amazonian peasant livelihood differentiation as mutuality-market dialectics

Fraser¹,

Cardoso

Steward

et al. 2017

The Journal of Peasant Studies

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Economistic approaches to the study of peasant livelihoods have considerable academic and policy influence, yet, we argue, perpetuate a partial misunderstanding -often reducing peasant livelihood to the management of capital assets by rational actors. In this paper, we propose to revitalize the original heterodox spirit of the sustainable livelihoods framework by drawing on Stephen Gudeman's work on the dialectic between use values and mutuality on the one hand, and exchange values and the market on the other. We use this approach to examine how historically divergent mutuality-market dialectics in different Amazonian regions have shaped greater prominence of either extractivism or agriculture in current livelihoods. We conclude that an approach centered on the mutuality-market dialectic is of considerable utility in revealing the role of economic histories in shaping differential peasant livelihoods in tropical forests. More generally, it has considerable potential to contribute to a much-needed re-pluralization of approaches to livelihood in academia and policy.

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Land use change in the Amazon estuary: Patterns of caboclo settlement and landscape management

Cited by 118 publications

References 7 publications

A agricultura de corte e queima: um sistema em transformação

A agricultura de corte e queima: um sistema em transformação

Assessment of JERS-1 SAR for monitoring secondary vegetation in Amazonia: I. Spatial and temporal variability in backscatter across a chrono-sequence of secondary vegetation stands in Rondonia

Amazonian peasant livelihood differentiation as mutuality-market dialectics

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