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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
05/12/2022 |
Data da última atualização: |
05/12/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
REZENDE, J. S.; FREIRE, F. J.; ARAUJO FILHO, J. C. de; FREIRE, M. B. G. dos S.; ALMEIDA, B. G. de; SANTOS, L. R. C. |
Afiliação: |
JEFREJAN SOUZA REZENDE, UNIVERSIDADE ESTADUAL DO PIAUÍ; FERNANDO JOSÉ FREIRE, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; JOSE COELHO DE ARAUJO FILHO, CNPS; MARIA BETÂNIA GALVÃO DOS SANTOS FREIRE, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; BRIVALDO GOMES DE ALMEIDA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; LEANDRO REIS COSTA SANTOS, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO. |
Título: |
Impact of deforestation on the soil physical and chemical attributes, and humic fraction of organic matter in dry environments in Brazil. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
iForest: Biogeosciences and Forestry, v. 15, p. 465-475, Nov. 2022. |
DOI: |
https://doi.org/10.3832/ifor4016-015 |
Idioma: |
Inglês |
Conteúdo: |
Deforestation of Caatinga and inadequate land use of these dry environments have impacted soil quality in Northeastern Brazil. The objectives of this study were: (a) to evaluate the effect of deforestation and different agricultural uses on the physical and chemical properties of soil, and humic fractions of soil organic matter in dry environments; and (b) to detect the soil properties that were most affected by anthropic actions. We evaluated four dry areas in Chapada do Araripe, NE Brazil: preserved native vegetation; degraded native vegetation; cassava conventional cultivation; and eucalyptus agro-energy cultivation. Soil fertility, total organic carbon and humic fractions of soil organic matter were lower in the degraded native vegetation area. The best indicators for soil quality evaluation were: macroporosity; bulk density; soil resistance penetration; sum of bases (mainly Ca2+); available P; and saturation by Al3+. Total organic carbon and humic acid fractions of soil organic matter were important in improving soil quality. These properties were influenced by deforestation and agricultural uses, suggesting that the deforestation of native vegetation in dry environments has high capacity to degrade the soil, preventing its regeneration. |
Palavras-Chave: |
Mudança no Uso da Terra; Qualidade do Solo; Solo Degradado. |
Thesagro: |
Solo Florestal. |
Thesaurus Nal: |
Forest soils; Land use change; Soil degradation; Soil quality. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149179/1/Impact-of-deforestation-on-the-soil-physical-and-chemical-attributes-2022.pdf
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Marc: |
LEADER 02208naa a2200289 a 4500 001 2149179 005 2022-12-05 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3832/ifor4016-015$2DOI 100 1 $aREZENDE, J. S. 245 $aImpact of deforestation on the soil physical and chemical attributes, and humic fraction of organic matter in dry environments in Brazil.$h[electronic resource] 260 $c2022 520 $aDeforestation of Caatinga and inadequate land use of these dry environments have impacted soil quality in Northeastern Brazil. The objectives of this study were: (a) to evaluate the effect of deforestation and different agricultural uses on the physical and chemical properties of soil, and humic fractions of soil organic matter in dry environments; and (b) to detect the soil properties that were most affected by anthropic actions. We evaluated four dry areas in Chapada do Araripe, NE Brazil: preserved native vegetation; degraded native vegetation; cassava conventional cultivation; and eucalyptus agro-energy cultivation. Soil fertility, total organic carbon and humic fractions of soil organic matter were lower in the degraded native vegetation area. The best indicators for soil quality evaluation were: macroporosity; bulk density; soil resistance penetration; sum of bases (mainly Ca2+); available P; and saturation by Al3+. Total organic carbon and humic acid fractions of soil organic matter were important in improving soil quality. These properties were influenced by deforestation and agricultural uses, suggesting that the deforestation of native vegetation in dry environments has high capacity to degrade the soil, preventing its regeneration. 650 $aForest soils 650 $aLand use change 650 $aSoil degradation 650 $aSoil quality 650 $aSolo Florestal 653 $aMudança no Uso da Terra 653 $aQualidade do Solo 653 $aSolo Degradado 700 1 $aFREIRE, F. J. 700 1 $aARAUJO FILHO, J. C. de 700 1 $aFREIRE, M. B. G. dos S. 700 1 $aALMEIDA, B. G. de 700 1 $aSANTOS, L. R. C. 773 $tiForest: Biogeosciences and Forestry$gv. 15, p. 465-475, Nov. 2022.
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
18/05/1998 |
Data da última atualização: |
27/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BUSO, G. S. C.; RANGEL, P. H.; FERREIRA, M. E. |
Afiliação: |
PAULO HIDEO NAKANO RANGEL, CNPAF. |
Título: |
Analysis of genetic variability of South American wild rice populations (Oryza glumaepatula) with isozymes and RAPD markers. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
Molecular Ecology, v. 7, n. 1, p. 107-117, Jan. 1998. |
DOI: |
10.1046/j.1365-294x.1998.00321.x |
Idioma: |
Inglês |
Conteúdo: |
The knowledge of population structure and genetic diversity of wild relatives of rice is needed to investigate their evolutionary history and potential use in breeding programs. Very little is known about the wild rice species (Oryza spp.), particularly those that are native to South America. A study using isozyme and RAPD markers was conducted to estimate the level of genetic diversity of four South American wild rice populations (Oryza glumaepatula) recently collected in the Amazon forest and western Brazil rivers. F‐statistics and genetic diversity parameters calculated from isozyme and RAPD markers indicated high values for inbreeding coefficients and differentiation among the four populations. In agreement with this, a pattern of greater variation between than within populations was observed with both types of markers. These findings were corroborated by an AMOVA analysis, which indicated that a large portion of the total genetic variation was attributed to regional divergence. The partition of the AMOVA analysis among populations showed that most of the genetic diversity was due to differences among populations. This distribution pattern of genetic variation of O. glumaepatula populations is in agreement with the expectation for an autogamous species and provides important baseline data for conservation and collection strategies for this species. |
Palavras-Chave: |
AMOVA; Isozyme; RAPD. |
Thesagro: |
Arroz; Genética; Oryza Sativa; População. |
Thesaurus NAL: |
genetics; population; rice. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02166naa a2200277 a 4500 001 1204791 005 2020-01-27 008 1998 bl uuuu u00u1 u #d 024 7 $a10.1046/j.1365-294x.1998.00321.x$2DOI 100 1 $aBUSO, G. S. C. 245 $aAnalysis of genetic variability of South American wild rice populations (Oryza glumaepatula) with isozymes and RAPD markers.$h[electronic resource] 260 $c1998 520 $aThe knowledge of population structure and genetic diversity of wild relatives of rice is needed to investigate their evolutionary history and potential use in breeding programs. Very little is known about the wild rice species (Oryza spp.), particularly those that are native to South America. A study using isozyme and RAPD markers was conducted to estimate the level of genetic diversity of four South American wild rice populations (Oryza glumaepatula) recently collected in the Amazon forest and western Brazil rivers. F‐statistics and genetic diversity parameters calculated from isozyme and RAPD markers indicated high values for inbreeding coefficients and differentiation among the four populations. In agreement with this, a pattern of greater variation between than within populations was observed with both types of markers. These findings were corroborated by an AMOVA analysis, which indicated that a large portion of the total genetic variation was attributed to regional divergence. The partition of the AMOVA analysis among populations showed that most of the genetic diversity was due to differences among populations. This distribution pattern of genetic variation of O. glumaepatula populations is in agreement with the expectation for an autogamous species and provides important baseline data for conservation and collection strategies for this species. 650 $agenetics 650 $apopulation 650 $arice 650 $aArroz 650 $aGenética 650 $aOryza Sativa 650 $aPopulação 653 $aAMOVA 653 $aIsozyme 653 $aRAPD 700 1 $aRANGEL, P. H. 700 1 $aFERREIRA, M. E. 773 $tMolecular Ecology$gv. 7, n. 1, p. 107-117, Jan. 1998.
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