Consulta: subjectFacets:"Shifting cultivation"
Registros recuperados: 10
Data/hora: 10/06/2024 14:10:54

Stable Forest Cover under Increasing Populations of Swidden Cultivators in Central Laos: the Roles of Intrinsic Culture and Extrinsic Wildlife Trade
Provedor de dados: 7
Autores: Robichaud, William G; Biodiversity Research Centre, Department of Zoology, University of British Columbia; williamrobichaud@yahoo.com; Sinclair, Anthony R. E.; Biodiversity Research Centre, Department of Zoology, University of British Columbia; sinclair@zoology.ubc.ca; Odarkor-Lanquaye, Naa; Forest Sciences Centre, University of British Columbia; naalanquaye@hotmail.com; Klinkenberg, Brian; Department of Geography, University of British Columbia; brian@geog.ubc.ca.
Swidden agriculture, or shifting cultivation, is variously viewed as a great environmental threat or a sustainable system of land use. In Laos, swidden has long been considered the primary driver of forest loss nationwide, but the assessment is based exclusively on studies from the north of country, where deforestation is most severe. National policies to control swidden have percolated down to management of one of the largest nature reserves in the region, Nakai-Nam Theun National Protected Area (NNT NPA) in the Annamite Mountains of central Laos. In NNT NPA, swidden&amp;#8217;s presumed unsustainability and deleterious impact on forest cover is an untested assumption.  We tested it by methods of historical ecology, tracing the patterns of NNT&amp;#8217;s...
Tipo: Peer-Reviewed Reports
Palavras-chave: Annamite Mountains; Brou; Cuora trifasciata; Dalbergia; Deforestation; Historical ecology; Lao PDR; Manis; Nakai-Nam Theun; Nam Theun 2; Pangolin; Pseudorxy nghetinhensis; Saola; Sek; Shifting cultivation; Slash and burn; Sustainable agriculture; Swidden agriculture; Vietic.
Ano: 2009

Características físico-químicas do solo em diferentes agroecossistemas na região bragantina do Nordeste paraense.
Provedor de dados: 14
Autores: BAENA, A. R. C.; FALESI, I. C.; DUTRA, S.
bitstream/item/48885/1/Boletim-Pesquisa-185-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Sistema de rocado; Região Bragantina; Pará; Brasil; Chemicophysical properties; Rural settlement.; Colonização; Cultivo Migratório; Propriedade Físico-Química; Uso da Terra; Solo.; Amazonia; Land use; Shifting cultivation; Soil.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376273

Agricultura conservacionista na produção familiar de mandioca e milho no Juruá, Estado do Acre: efeitos da adoção nos resultados de safras de 2006 a 2014.
Provedor de dados: 14
Autores: COSTA, F. de S.; CAMPOS FILHO, M. D.; SANTIAGO, A. C. C.; MAGALHÃES, I. B.; CORDEIRO, L. da S.; LIMA, A. P. de; MAIA, G. R.; SILVA, E. P.; KLEIN, M. A.; SILVA, F. de A. C.; BARDALES, N. G.; QUEIROZ, L. R.; BRITO, E. de S.
As formas e as etapas atuais do uso do solo no Juruá, uma das regionais de desenvolvimento do Estado do Acre, não diferem do resto da Amazônia Brasileira. Envolvem o sistema de derruba e queima da floresta, tanto primária quanto secundária, o uso geral do solo em monocultivo e/ou em sucessão por períodos de até 5 anos com culturas exigentes em fertilidade do solo (arroz, feijão e milho nos dois primeiros anos) e depois com mandioca, menos exigente e tolerante à acidez do solo. Os resultados dos cultivos de mandioca e milho, apresentados neste comunicado técnico, são produtos de uma pesquisa conduzida em condições de campo, adotando-se princípios da agricultura conservacionista.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Agricultura conservacionista; Derruba e queima; Juruá (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Rendimiento de los cultivos.; Prácticas de conservación de agrícolas; Maiz; Explotación agrícola familiar; Mandioca; Zea mays; Rendimento; Milho; Manihot esculenta; Agricultura familiar; Cultivo Migratório.; Agricultural conservation practice; Cassava; Corn; Shifting cultivation; Crop yield.; Family farms.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1007022

Agricultura migratória na Amazônia: um sistema de produção viável?
Provedor de dados: 14
Autores: KITAMURA, P. C.
bitstream/item/50350/1/Documentos120001.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agricultura migratória; Pequeno agricultor; Brasil; Production system.; Sistema de Produção.; Amazonia; Shifting cultivation; Small farms.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382469

Desenvolvimento sustentado da caatinga.
Provedor de dados: 14
Autores: ARAUJO FILHO, J. A. de; CARVALHO, F. C. de.
Neste trabalho esta sendo proposto o desenvolvimento de alternativas tecnologicas que permitam o manejo sustentado da vegetacao da caatinga, com o objetivo de evitar a degradacao ambiental e promover a recuperacao da produtividade agricola e pecuaria em niveis economicos e ecologicos. A manipulacao da vegetacao, atraves do raleamento, do rebaixamento, do raleamento-rebaixamento e do enriquecimento, pode aumentar a disponibilidade de forragem em ate 800% e a producao animal em ate 1500%. A sustentabilidade da producao agricola em condicoes tropicais sera obtida com sua fixacao, substituindo-se as praticas atuais de manejo da pecuaria, tais como o banco rocado. O manejo da vegetacao da caatinga com vistas a obtencao de produtos nao madereiro, ainda e...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Código florestal; Sistema agrossilvipastoril; Slash and burn agriculture; Woody plant.; Agrosilvopastoral systems; Agroforestry systems; Agricultura sustentável; Desenvolvimento sustentável; Caatinga; Vegetação nativa; Planta lenhosa; Lenha; Cultivo em faixa; Plantio; Agrossilvicultura; Cultivo migratório; Fuelwood; Sustainable agriculture; Semiarid soils; Alley cropping; Sustainable development; Shifting cultivation; Brazil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514827

Effects of habitat disturbance and hunting on the density and the biomass of the endemic Hose’s leaf monkey Presbytis hosei (Thomas, 1889) (Mammalia: Primates: Cercopithecidae) in east Borneo
Provedor de dados: 16
Autores: Nijman, Vincent.
Hose’s leaf monkey Presbytis hosei is endemic to Borneo and occurs only in tall forest. In recent decades Borneo has lost a large part of its forest cover, mostly in low-lying coastal regions. Large intact tracts of forest remain in the interior, but these are by and large inhabited by tribes that subsist in part by hunting. The combined effects of habitat disturbance and hunting on the densities and biomass of Hose’s leaf monkey were studied in Kayan Mentarang National Park in Borneo’s far interior. Over four months, data on densities and hunting were collected by transect walks in four forest types. Hose’s leaf monkeys were hunted to deter crop-raiding, for their meat, and to obtain bezoar stones (visceral secretions used in traditional medicine). Hose’s...
Tipo: Article / Letter to the editor
Palavras-chave: Colobines; Conservation; Logging; Primates; Shifting cultivation.
Ano: 2004
URL: http://www.repository.naturalis.nl/record/534367

The impact of government policies on land use in Northern Vietnam: an institutional approach for understanding farmer decisions
Provedor de dados: 31
Autores: Clement,   Floriane; Amezaga,   Jaime M.; Orange,   Didier; Toan,   Tran Duc.
Tipo: Report
Palavras-chave: Land use; Public policy; Reforestation; Farmers; Decision making; Land management; Shifting cultivation; Villages; Vietnam; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/52968

ON- AND OFF-FARM LABOR DECISIONS BY SLASH-AND-BURN FARMERS IN YUCATAN (MEXICO)
Provedor de dados: 31
Autores: Pascual,   Unai; Barbier,   Edward B.
The availability of basic assets influences peasants’ economic behavior, their livelihood diversification strategies and their responses to land degradation. In addition, when pressed by economic hardships households can also expected to work more than better off ones. Whether this implies more or less on- or off-farm labor supply is an empirical question. This in turn can have an asymmetric effect on poverty traps and the extent of forest clearing under slash-and-burn farming. This paper examines the determinants of labor allocation among forest based shifting cultivating households in two communities from Yucatan (Mexico). The effects of wage rates and structural socio-economic factors are tested for both farming household heads and other family members...
Tipo: Working or Discussion Paper
Palavras-chave: Deforestation; Shifting cultivation; Livelihood diversification; Off-farm labor supply; Mexico; Consumer/Household Economics; Labor and Human Capital.
Ano: 2005
URL: http://purl.umn.edu/31926

Phosphorus Forms in Ultisol Submitted to Burning and Trituration of Vegetation in Eastern Amazon
Provedor de dados: 90
Autores: Farias,Samuel Christian Cohen; Silva Júnior,Mário Lopes da; Ruivo,Maria de Lourdes Pinheiro; Rodrigues,Possidônio Guimarães; Melo,Vânia Silva de; Costa,Adriane da Rocha; Souza Júnior,João Cardoso de.
ABSTRACT The use of fire to prepare agricultural areas is a technique still used by small farmers in eastern Amazon. This type of management changes the dynamics of soil nutrients, especially phosphorus, which constitutes the most limiting nutrient for crop production in tropical soils. This study was carried out to evaluate changes in phosphorus forms in an Argissolo Amarelo Distrófico (Ultisol) submitted to burning and trituration of secondary forest in eastern Amazon. The evaluated systems were: slash-and-burn of vegetation; slash-and-mulch of vegetation; and secondary vegetation. The labile, moderately labile, moderately recalcitrant, available and total phosphorus fractions were assessed at the soil depths of 0.00-0.05, 0.05-0.10 and 0.10-0.20 m. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shifting cultivation; Tropical soils; Phosphorus fractions; Organic phosphorus.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100506

Soil carbon and nitrogen stocks in traditional agricultural and agroforestry systems in the semiarid region of Brazil
Provedor de dados: 90
Autores: Sacramento,José Augusto Amorim Silva do; Araújo,Ana Caroline de Moraes; Escobar,Maria Eugenia Ortiz; Xavier,Francisco Alisson da Silva; Cavalcante,Ana Clara Rodrigues; Oliveira,Teógenes Senna de.
In the semiarid region of Brazil, inadequate management of cropping systems and low plant biomass production can contribute to reduce soil carbon (C) and nitrogen (N) stocks; therefore, management systems that preserve C and N must be adopted. This study aimed to evaluate the changes in soil C and N stocks that were promoted by agroforestry (agrosilvopastoral and silvopastoral) and traditional agricultural systems (slash-and-burn clearing and cultivation for two and three years) and to compare these systems with the natural Caatinga vegetation after 13 years of cultivation. The experiment was carried out on a typical Ortic Chromic Luvisol in the municipality of Sobral, Ceará, Brazil. Soil samples were collected (layers 0-6, 6-12, 12-20, 20-40 and 40-60 cm)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbon sequestration; Conservation management; Shifting cultivation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000300025