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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
12/06/2001 |
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Data da última atualização: |
30/03/2017 |
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Autoria: |
SEIDL, A. F.; SILVA, J. dos S. V. da; MORAES, A. S. |
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Afiliação: |
Colorado State University (Ft. Collins, USA). EMBRAPA Pantanal (Corumba, MS). |
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Título: |
Cattle ranching and deforestation in the Brazilian Pantanal. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Ecological Economics, v.36, p.413-425, 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
Regional economic indicator and incentives for agricultural landowners in the Brazilian pantanal were explored in order to understand better the observed increases in deforestation for the implication of cultived pastures to assist in the extensive management of beef cattle. About 95% of Pantanal lands are privately owned and about 80% are used as extensively managed cattle ranches. The mean size of agricultural property in the Pantanal is increasing, the cattle density and numbers are decreasing, the proportion of land in cultivated pastures is decreasing, but the area is increasing, land and animal wealth is highly concentrated, and the amount and proportion of land in natural pastures is decreasing. Statistical analyses reveal that land and animal wealth, intensification of agricultural effort, human population, natural pastures and location relative to infrastructure and regional markets influence either the magnitude or the proportion of Pantanal lands deforested for the purpose of implanting cultivated pastures or both. A nonlinear link between wealth measures and deforestation was not established. Improving the profitability of forestland should unambiguously improve the likelihood of its continued management as forest and the maintenance of biological diversity. Potential sustainable uses of forested lands and native biological diversity in the Pantanal include the sustainable extraction of forest species, ranching of wild and feral species, and tourism. |
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Thesagro: |
Desmatamento; Gado. |
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Thesaurus Nal: |
Brazil; cattle; deforestation; Pantanal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02034naa a2200217 a 4500
001 1806965
005 2017-03-30
008 2001 bl --- 0-- u #d
100 1 $aSEIDL, A. F.
245 $aCattle ranching and deforestation in the Brazilian Pantanal.
260 $c2001
520 $aRegional economic indicator and incentives for agricultural landowners in the Brazilian pantanal were explored in order to understand better the observed increases in deforestation for the implication of cultived pastures to assist in the extensive management of beef cattle. About 95% of Pantanal lands are privately owned and about 80% are used as extensively managed cattle ranches. The mean size of agricultural property in the Pantanal is increasing, the cattle density and numbers are decreasing, the proportion of land in cultivated pastures is decreasing, but the area is increasing, land and animal wealth is highly concentrated, and the amount and proportion of land in natural pastures is decreasing. Statistical analyses reveal that land and animal wealth, intensification of agricultural effort, human population, natural pastures and location relative to infrastructure and regional markets influence either the magnitude or the proportion of Pantanal lands deforested for the purpose of implanting cultivated pastures or both. A nonlinear link between wealth measures and deforestation was not established. Improving the profitability of forestland should unambiguously improve the likelihood of its continued management as forest and the maintenance of biological diversity. Potential sustainable uses of forested lands and native biological diversity in the Pantanal include the sustainable extraction of forest species, ranching of wild and feral species, and tourism.
650 $aBrazil
650 $acattle
650 $adeforestation
650 $aPantanal
650 $aDesmatamento
650 $aGado
700 1 $aSILVA, J. dos S. V. da
700 1 $aMORAES, A. S.
773 $tEcological Economics$gv.36, p.413-425, 2001.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Unidades Centrais. |
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Data corrente: |
17/06/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
KALSING, A.; GOULART, I. C. G. dos R.; MARIOT, C. H. P.; MENEZES, V. G.; MATZENBACHER, F. de O.; MEROTTO JUNIOR, A. |
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Afiliação: |
Augusto Kalsing, Corteva Agriscience; IVES CLAYTON GOMES DOS REIS GOULART, CNPF; Carlos Henrique Paim Mariot, Instituto Rio Grandense do Arroz - IRGA; Valmir Gaedke Menezes, Instituto Rio Grandense do Arroz - IRGA; Felipe de Oliveira Matzenbacher, Instituto Rio Grandense do Arroz - IRGA; Aldo Merotto Junior, Universidade Federal do Rio Grande do Sul - UFRGS/Faculdade de Agronomia. |
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Título: |
Spatial and temporal evolution of imidazolinone-resitant red rice in 'Clearfield' rice cultivations. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 54, e00215, 2019. 8 p. |
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DOI: |
10.1590/S1678-3921.pab2019.v54.00215 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the distribution of imidazolinone-resistant (IMI-R) red rice (Oryza sativa) populations, the frequency of alleles conferring resistance to IMI, and the adoption of agronomic practices applied to red rice control, across growing seasons and production regions of the state of Rio Grande do Sul (RS), Brazil. In the experiment, 1,008 red rice populations were screened for resistance to IMI, 760 IMI-R red rice plants were genotyped for the acetolactate synthase (ALS) alleles conferring resistance to IMI, and 40 'Clearfield' rice growers were surveyed. IMI-R red rice populations were widespread throughout RS since the 2006/2007 growing season, with a higher initial frequency in the Depressão Central and Fronteira Sul production
regions. The occurrence of IMI-R red rice ranged from 1.6 to 3.5 years after 'Clearfield' rice release. Gly654Glu was the most frequent ALS mutation in IMI-R red rice populations, which shows a gene flow from the most used 'Clearfield' rice cultivars to the red rice plants. Crop rotation systems and certified seed were used by only 30% of the surveyed growers of 'Clearfield' rice, with lower percentages in the production regions where IMI-R red rice appeared faster. |
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Palavras-Chave: |
Resistência a herbicidas; Weedy rice. |
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Thesagro: |
Arroz Vermelho; Oryza Sativa. |
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Thesaurus NAL: |
Gene flow; Herbicide resistance. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198626/1/Spatial-and-temporal-evolution.pdf
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Marc: |
LEADER 02095naa a2200265 a 4500
001 2111206
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/S1678-3921.pab2019.v54.00215$2DOI
100 1 $aKALSING, A.
245 $aSpatial and temporal evolution of imidazolinone-resitant red rice in 'Clearfield' rice cultivations.$h[electronic resource]
260 $c2019
520 $aThe objective of this work was to evaluate the distribution of imidazolinone-resistant (IMI-R) red rice (Oryza sativa) populations, the frequency of alleles conferring resistance to IMI, and the adoption of agronomic practices applied to red rice control, across growing seasons and production regions of the state of Rio Grande do Sul (RS), Brazil. In the experiment, 1,008 red rice populations were screened for resistance to IMI, 760 IMI-R red rice plants were genotyped for the acetolactate synthase (ALS) alleles conferring resistance to IMI, and 40 'Clearfield' rice growers were surveyed. IMI-R red rice populations were widespread throughout RS since the 2006/2007 growing season, with a higher initial frequency in the Depressão Central and Fronteira Sul production regions. The occurrence of IMI-R red rice ranged from 1.6 to 3.5 years after 'Clearfield' rice release. Gly654Glu was the most frequent ALS mutation in IMI-R red rice populations, which shows a gene flow from the most used 'Clearfield' rice cultivars to the red rice plants. Crop rotation systems and certified seed were used by only 30% of the surveyed growers of 'Clearfield' rice, with lower percentages in the production regions where IMI-R red rice appeared faster.
650 $aGene flow
650 $aHerbicide resistance
650 $aArroz Vermelho
650 $aOryza Sativa
653 $aResistência a herbicidas
653 $aWeedy rice
700 1 $aGOULART, I. C. G. dos R.
700 1 $aMARIOT, C. H. P.
700 1 $aMENEZES, V. G.
700 1 $aMATZENBACHER, F. de O.
700 1 $aMEROTTO JUNIOR, A.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 54, e00215, 2019. 8 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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