| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
20/08/2019 |
|
Data da última atualização: |
07/02/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CRUZ, D. C. da; BENAYAS, J. M. R.; FERREIRA, G. C.; MONTEIRO, A. L.; SCHWARTZ, G. |
|
Afiliação: |
Denis Conrado da CRUZ, University of Alcalá; José María Rey BENAYAS, University of Alcalá; Gracialda Costa FERREIRA, UFRA; André Luis MONTEIRO, Geoforest Consultancy; GUSTAVO SCHWARTZ, CPATU. |
|
Título: |
Evaluation of soil erosion process and conservation practices in the Paragominas-PA municipality (Brazil). |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Geographia Technica, v. 14, n. 1, p. 14-35, Mar. 2019. |
|
DOI: |
10.21163/GT_2019.141.02 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Over the last decades, the natural environment has been degraded at a much greater speed than its own resilience. Lack of knowledge about soil natural limitations and mismanagement can increase their degradation and nutrient losses by erosion. The objective of this study was to estimate and map soil vulnerability to erosion through the Universal Equation of Revised Soil Loss (RUSLE) and based on the ecodynamic concept of physical and biotic environment analysis, and finally to evaluate conservation practices in the municipality of Paragominas with the economic database of IBGE / SIDRA. In the two analyzed methods the percentage of area with low and high potential and erosivity estimation were similar. The estimation of low and low-moderate loss and vulnerability represents about 77% (15,064 km2) of the territory by RUSLE and 60% (11,485 km2), by ecodynamic concept. The high to very high soil loss zones represent only 3% (642 km2) and 2.7% (584 km2), in the RUSLE and ecodynamic concept, respectively. Most of the variables analyzed in both methods presented low estimation values of loss and erosivity potential. The soil and slope attributes, for example, obtained exactly 79% (15,377 km2 - RUSLE) and 80% (15,572 km2 - ecodynamic concept), except for the climate and factor R attributes, in both methods the vulnerability potential and erosion, were only 1.5% (292 km2) and 1.3% (253 km2), based on the ecodynamic concept and RUSLE respectively. The geospatial analysis of the use practices correlated with the economic data showed an intense use of agricultural activities, logging and mining, which caused severe environmental damages, considering that 45% (8,773.3 km2) of the municipality have already been deforested and converted into other uses. The municipality still has 47% (9,182 km2) of its territory covered by altered primary vegetation and 23% (4,441 km2) by secondary vegetation, important information to subsidize decision-making processes related to ecological-economic strategies for the management of natural resources in the study area. MenosOver the last decades, the natural environment has been degraded at a much greater speed than its own resilience. Lack of knowledge about soil natural limitations and mismanagement can increase their degradation and nutrient losses by erosion. The objective of this study was to estimate and map soil vulnerability to erosion through the Universal Equation of Revised Soil Loss (RUSLE) and based on the ecodynamic concept of physical and biotic environment analysis, and finally to evaluate conservation practices in the municipality of Paragominas with the economic database of IBGE / SIDRA. In the two analyzed methods the percentage of area with low and high potential and erosivity estimation were similar. The estimation of low and low-moderate loss and vulnerability represents about 77% (15,064 km2) of the territory by RUSLE and 60% (11,485 km2), by ecodynamic concept. The high to very high soil loss zones represent only 3% (642 km2) and 2.7% (584 km2), in the RUSLE and ecodynamic concept, respectively. Most of the variables analyzed in both methods presented low estimation values of loss and erosivity potential. The soil and slope attributes, for example, obtained exactly 79% (15,377 km2 - RUSLE) and 80% (15,572 km2 - ecodynamic concept), except for the climate and factor R attributes, in both methods the vulnerability potential and erosion, were only 1.5% (292 km2) and 1.3% (253 km2), based on the ecodynamic concept and RUSLE respectively. The geospatial analysis of the use pr... Mostrar Tudo |
|
Palavras-Chave: |
Paragominas. |
|
Thesagro: |
Conservação do Solo; Erosão do Solo. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02751naa a2200217 a 4500
001 2111463
005 2022-02-07
008 2019 bl uuuu u00u1 u #d
024 7 $a10.21163/GT_2019.141.02$2DOI
100 1 $aCRUZ, D. C. da
245 $aEvaluation of soil erosion process and conservation practices in the Paragominas-PA municipality (Brazil).$h[electronic resource]
260 $c2019
520 $aOver the last decades, the natural environment has been degraded at a much greater speed than its own resilience. Lack of knowledge about soil natural limitations and mismanagement can increase their degradation and nutrient losses by erosion. The objective of this study was to estimate and map soil vulnerability to erosion through the Universal Equation of Revised Soil Loss (RUSLE) and based on the ecodynamic concept of physical and biotic environment analysis, and finally to evaluate conservation practices in the municipality of Paragominas with the economic database of IBGE / SIDRA. In the two analyzed methods the percentage of area with low and high potential and erosivity estimation were similar. The estimation of low and low-moderate loss and vulnerability represents about 77% (15,064 km2) of the territory by RUSLE and 60% (11,485 km2), by ecodynamic concept. The high to very high soil loss zones represent only 3% (642 km2) and 2.7% (584 km2), in the RUSLE and ecodynamic concept, respectively. Most of the variables analyzed in both methods presented low estimation values of loss and erosivity potential. The soil and slope attributes, for example, obtained exactly 79% (15,377 km2 - RUSLE) and 80% (15,572 km2 - ecodynamic concept), except for the climate and factor R attributes, in both methods the vulnerability potential and erosion, were only 1.5% (292 km2) and 1.3% (253 km2), based on the ecodynamic concept and RUSLE respectively. The geospatial analysis of the use practices correlated with the economic data showed an intense use of agricultural activities, logging and mining, which caused severe environmental damages, considering that 45% (8,773.3 km2) of the municipality have already been deforested and converted into other uses. The municipality still has 47% (9,182 km2) of its territory covered by altered primary vegetation and 23% (4,441 km2) by secondary vegetation, important information to subsidize decision-making processes related to ecological-economic strategies for the management of natural resources in the study area.
650 $aConservação do Solo
650 $aErosão do Solo
653 $aParagominas
700 1 $aBENAYAS, J. M. R.
700 1 $aFERREIRA, G. C.
700 1 $aMONTEIRO, A. L.
700 1 $aSCHWARTZ, G.
773 $tGeographia Technica$gv. 14, n. 1, p. 14-35, Mar. 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Amapá. |
|
Data corrente: |
23/04/2014 |
|
Data da última atualização: |
29/05/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
FREITAS, A. D. S. de; BORGES, W. L.; ANDRADE, M. M. de M.; SAMPAIO, E. V. de S. B.; SANTOS, C. E. de R. e S.; PASSOS, S. R.; XAVIER, G. R.; MULATO, B. M.; LYRA, M. do C. C. P. de. |
|
Afiliação: |
WARDSSON LUSTRINO BORGES, CPAF-AP; GUSTAVO RIBEIRO XAVIER, CNPAB; BRUNO MELLO MULATO, CNPAB. |
|
Título: |
Characteristics of nodule bacteria from Mimosa spp grown in soils of the Brazilian semiarid region. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
African Journal of Microbiology Research, v. 8, n. 8, p. 788-796, Feb., 2014. |
|
ISSN: |
ISSN 1996-0808. |
|
DOI: |
DOI: 10.5897/AJMR2013.6518. |
|
Idioma: |
Inglês
Português |
|
Conteúdo: |
The Brazilian Northeastern dry forest (Caatinga) is one of the diversification centers of Mimosa species. We determined the characteristics of native rhizobia isolates from nodules of Mimosa tenuiflora and Mimosa paraibana grown in pots with soils collected under Caatinga vegetation and compared the restriction ribosomal DNA profiles of the isolates with those of 16 reference strains. All plants formed abundant indeterminate nodules and all nodule isolates formed fast growing colonies. No colony altered the medium to an alkaline reaction and most of them produced low or medium amounts of extracellular polysaccharides. White and creamy colonies predominated among the isolates but orange and green colonies were present. Differences among the isolates from the Mimosa species tested are indicated by the greater phenotypic diversity of those obtained from M. tenuiflora. The analysis of the 16S rDNA gene suggests that the isolates from M. tenuiflora and M. paraibana are closely related and closer to B-rhizobia than to α-rhizobia. However, the similarity with all the tested B-rhizobia reference strains was relatively low suggesting that the isolates may belong to different bacteria species. |
|
Palavras-Chave: |
Biological nitrogen fixation; Diversidade; Diversity; Fixação biológica de nitrogênio; Leguminosa arbórea selvagem; Rhizobia; Soil bacteriology; Wild tree legumes. |
|
Thesagro: |
Bacteriologia do solo; Leguminosa. |
|
Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/101354/1/CPAF-AP-2014-Characteristics-of-nodule-bacteria-from-Mimosa-spp-1.pdf
|
|
Marc: |
LEADER 02327naa a2200361 a 4500
001 1984991
005 2019-05-29
008 2014 bl uuuu u00u1 u #d
022 $aISSN 1996-0808.
024 7 $aDOI: 10.5897/AJMR2013.6518.$2DOI
100 1 $aFREITAS, A. D. S. de
245 $aCharacteristics of nodule bacteria from Mimosa spp grown in soils of the Brazilian semiarid region.
260 $c2014
520 $aThe Brazilian Northeastern dry forest (Caatinga) is one of the diversification centers of Mimosa species. We determined the characteristics of native rhizobia isolates from nodules of Mimosa tenuiflora and Mimosa paraibana grown in pots with soils collected under Caatinga vegetation and compared the restriction ribosomal DNA profiles of the isolates with those of 16 reference strains. All plants formed abundant indeterminate nodules and all nodule isolates formed fast growing colonies. No colony altered the medium to an alkaline reaction and most of them produced low or medium amounts of extracellular polysaccharides. White and creamy colonies predominated among the isolates but orange and green colonies were present. Differences among the isolates from the Mimosa species tested are indicated by the greater phenotypic diversity of those obtained from M. tenuiflora. The analysis of the 16S rDNA gene suggests that the isolates from M. tenuiflora and M. paraibana are closely related and closer to B-rhizobia than to α-rhizobia. However, the similarity with all the tested B-rhizobia reference strains was relatively low suggesting that the isolates may belong to different bacteria species.
650 $aBacteriologia do solo
650 $aLeguminosa
653 $aBiological nitrogen fixation
653 $aDiversidade
653 $aDiversity
653 $aFixação biológica de nitrogênio
653 $aLeguminosa arbórea selvagem
653 $aRhizobia
653 $aSoil bacteriology
653 $aWild tree legumes
700 1 $aBORGES, W. L.
700 1 $aANDRADE, M. M. de M.
700 1 $aSAMPAIO, E. V. de S. B.
700 1 $aSANTOS, C. E. de R. e S.
700 1 $aPASSOS, S. R.
700 1 $aXAVIER, G. R.
700 1 $aMULATO, B. M.
700 1 $aLYRA, M. do C. C. P. de
773 $tAfrican Journal of Microbiology Research$gv. 8, n. 8, p. 788-796, Feb., 2014.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amapá (CPAF-AP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
