| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação; Embrapa Territorial. |
|
Data corrente: |
12/03/2024 |
|
Data da última atualização: |
13/03/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SOARES, A. K. M.; CRESTANA, S.; FERREIRA, R. R. M.; RODRIGUES, V. G. S. |
|
Afiliação: |
A. K. M. SOARES, UNIVERSIDADE DE SÃO PAULO; SILVIO CRESTANA, CNPDIA; ROGERIO RESENDE MARTINS FERREIRA, CNPM; VALERIA G. S. RODRIGUES, UNIVERSIDADE DE SÃO PAULO. |
|
Título: |
Assessment of the impact of conservation measures by modeling soil loss in Minas Gerais, Brazil. |
|
Ano de publicação: |
2024 |
|
Fonte/Imprenta: |
Environmental Monitoring and Assessment, v. 196, n. 358, e3616, 2024. |
|
Idioma: |
Inglês |
|
Conteúdo: |
ABSTRACT: Gullies are significant contributors to soil degradation in several regions of Brazil, including Minas Gerais, where erosion processes have caused soil loss. The characterization of erosion processes is crucial for the application of measures for recovering degraded areas and reducing erosion impacts. This study models soil loss with the use of InVEST software and assesses the impact of three different scenarios, namely (1) implementation of soil conservation practices and replacement of pasture areas for temporary agriculture, (2) reforestation of pasture areas, and (3) preservation of ciliary forests. Soil loss, sediment exportation, retention, and deposition for the present scenario (2019), as well as the three aforementioned hypothetical scenarios, were estimated. In the present scenario, the estimated mean annual soil loss was 2.75 t/ha year, with 1,449.54 t/year sediment exportation, 9,042.13 t/year retention, and 1,449.54 t/year deposition. The model predicted scenario 1 would result in 2.23 t/ha year mean annual soil loss, 1,300.59 t/year sediment exportation, 9,191.08 t/year retention, and 11,755.76 t/year deposition. Scenario 2 showed 1.92 t/ha year mean annual soil loss, 1,046.69 t/year sediment exportation, 9,444.98 t/year retention, and 10,229.77 t/year deposition, whereas the results for scenario 3 were 2.36 t/ha year, 616.65 t/year, 9,862.06 t/year, and 13,206.47 t/year, respectively. Reforestation and preservation of ciliary forests, along with soil conservation practices, were effective measures for reducing soil loss. Such findings are valuable for the management of areas degraded by erosion processes. MenosABSTRACT: Gullies are significant contributors to soil degradation in several regions of Brazil, including Minas Gerais, where erosion processes have caused soil loss. The characterization of erosion processes is crucial for the application of measures for recovering degraded areas and reducing erosion impacts. This study models soil loss with the use of InVEST software and assesses the impact of three different scenarios, namely (1) implementation of soil conservation practices and replacement of pasture areas for temporary agriculture, (2) reforestation of pasture areas, and (3) preservation of ciliary forests. Soil loss, sediment exportation, retention, and deposition for the present scenario (2019), as well as the three aforementioned hypothetical scenarios, were estimated. In the present scenario, the estimated mean annual soil loss was 2.75 t/ha year, with 1,449.54 t/year sediment exportation, 9,042.13 t/year retention, and 1,449.54 t/year deposition. The model predicted scenario 1 would result in 2.23 t/ha year mean annual soil loss, 1,300.59 t/year sediment exportation, 9,191.08 t/year retention, and 11,755.76 t/year deposition. Scenario 2 showed 1.92 t/ha year mean annual soil loss, 1,046.69 t/year sediment exportation, 9,444.98 t/year retention, and 10,229.77 t/year deposition, whereas the results for scenario 3 were 2.36 t/ha year, 616.65 t/year, 9,862.06 t/year, and 13,206.47 t/year, respectively. Reforestation and preservation of ciliary forests, along with soil... Mostrar Tudo |
|
Palavras-Chave: |
Degraded areas; Erosion; Gully; InVEST; Sediment exportation. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162750/1/6217.pdf
|
|
Marc: |
LEADER 02309naa a2200217 a 4500
001 2162782
005 2024-03-13
008 2024 bl uuuu u00u1 u #d
100 1 $aSOARES, A. K. M.
245 $aAssessment of the impact of conservation measures by modeling soil loss in Minas Gerais, Brazil.$h[electronic resource]
260 $c2024
520 $aABSTRACT: Gullies are significant contributors to soil degradation in several regions of Brazil, including Minas Gerais, where erosion processes have caused soil loss. The characterization of erosion processes is crucial for the application of measures for recovering degraded areas and reducing erosion impacts. This study models soil loss with the use of InVEST software and assesses the impact of three different scenarios, namely (1) implementation of soil conservation practices and replacement of pasture areas for temporary agriculture, (2) reforestation of pasture areas, and (3) preservation of ciliary forests. Soil loss, sediment exportation, retention, and deposition for the present scenario (2019), as well as the three aforementioned hypothetical scenarios, were estimated. In the present scenario, the estimated mean annual soil loss was 2.75 t/ha year, with 1,449.54 t/year sediment exportation, 9,042.13 t/year retention, and 1,449.54 t/year deposition. The model predicted scenario 1 would result in 2.23 t/ha year mean annual soil loss, 1,300.59 t/year sediment exportation, 9,191.08 t/year retention, and 11,755.76 t/year deposition. Scenario 2 showed 1.92 t/ha year mean annual soil loss, 1,046.69 t/year sediment exportation, 9,444.98 t/year retention, and 10,229.77 t/year deposition, whereas the results for scenario 3 were 2.36 t/ha year, 616.65 t/year, 9,862.06 t/year, and 13,206.47 t/year, respectively. Reforestation and preservation of ciliary forests, along with soil conservation practices, were effective measures for reducing soil loss. Such findings are valuable for the management of areas degraded by erosion processes.
653 $aDegraded areas
653 $aErosion
653 $aGully
653 $aInVEST
653 $aSediment exportation
700 1 $aCRESTANA, S.
700 1 $aFERREIRA, R. R. M.
700 1 $aRODRIGUES, V. G. S.
773 $tEnvironmental Monitoring and Assessment$gv. 196, n. 358, e3616, 2024.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agroenergia. |
|
Data corrente: |
23/09/2019 |
|
Data da última atualização: |
18/11/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
SOUZA, M. C. de; WILLIAMS, T. C. R.; POSCHENRIEDER, C.; JANSEN, S.; PINHEIRO, M. H. O.; SOARES, I. P.; FRANCO, A. C. |
|
Afiliação: |
M. C. de Souza, UnB; T. C. R. Williams, UnB; C. Poschenrieder, University of Barcelona; S. Jansen, University, €Ulm, Germany; M. H. O. Pinheiro, University of Uberlandia; ITANIA PINHEIRO SOARES, CNPAE; A. C. Franco, UnB. |
|
Título: |
Calcicole behaviour of Callisthene fasciculata Mart., an Alaccumulating species from the Brazilian Cerrado. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Plant Biology, 2019. |
|
Páginas: |
8 p. |
|
Idioma: |
Inglês |
|
Conteúdo: |
? Most aluminium (Al)-accumulating species are found on soils with high Al saturation and low Ca availability (Ca poor). Callisthene fasciculata Mart. (Vochysiaceae), however, is an Al-accumulating tree restricted to Ca-rich soils with low Al saturation in the Brazilian Cerrado savanna. Here we tested its calcicole behaviour, and the possible role of organic acids in detoxification of Al during the early stages of plant development. ? We assessed growth, dry mass, nutrients, Al and organic acids in seedlings grown for 50 days on two contrasting Cerrado soils; one with high Ca concentrations and low Al saturation and the other with low Ca availability and high Al saturation. ? Relative to plants on Ca-rich soil, plants on Ca-poor soil had necrotic spots and bronzing of leaves. Roots and shoots contained reduced concentrations of P and Cu, but higher concentrations of Fe, Al and citrate. Despite lower concentrations in the soil, Ca and Mg increased in shoots. Shoot concentrations of oxalate were also higher. ? We confirmed C. fasciculata as an Al-accumulating species with calcicole behaviour. The increased concentrations of organic acids in plants with higher Al accumulation suggest that high availability of soluble Al does not prevent occurrence of this species on soils with high Al saturation. Instead, the absence of C. fasciculata from Ca-poor soils is probably due to imbalances in tissue Fe, Cu and Zn imposed by this soil type. |
|
Palavras-Chave: |
Aluminium. |
|
Thesaurus NAL: |
Calcium; Copper; Iron; Phosphorus; Zinc. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02183naa a2200277 a 4500
001 2112386
005 2019-11-18
008 2019 bl uuuu u00u1 u #d
100 1 $aSOUZA, M. C. de
245 $aCalcicole behaviour of Callisthene fasciculata Mart., an Alaccumulating species from the Brazilian Cerrado.$h[electronic resource]
260 $c2019
300 $a8 p.
520 $a? Most aluminium (Al)-accumulating species are found on soils with high Al saturation and low Ca availability (Ca poor). Callisthene fasciculata Mart. (Vochysiaceae), however, is an Al-accumulating tree restricted to Ca-rich soils with low Al saturation in the Brazilian Cerrado savanna. Here we tested its calcicole behaviour, and the possible role of organic acids in detoxification of Al during the early stages of plant development. ? We assessed growth, dry mass, nutrients, Al and organic acids in seedlings grown for 50 days on two contrasting Cerrado soils; one with high Ca concentrations and low Al saturation and the other with low Ca availability and high Al saturation. ? Relative to plants on Ca-rich soil, plants on Ca-poor soil had necrotic spots and bronzing of leaves. Roots and shoots contained reduced concentrations of P and Cu, but higher concentrations of Fe, Al and citrate. Despite lower concentrations in the soil, Ca and Mg increased in shoots. Shoot concentrations of oxalate were also higher. ? We confirmed C. fasciculata as an Al-accumulating species with calcicole behaviour. The increased concentrations of organic acids in plants with higher Al accumulation suggest that high availability of soluble Al does not prevent occurrence of this species on soils with high Al saturation. Instead, the absence of C. fasciculata from Ca-poor soils is probably due to imbalances in tissue Fe, Cu and Zn imposed by this soil type.
650 $aCalcium
650 $aCopper
650 $aIron
650 $aPhosphorus
650 $aZinc
653 $aAluminium
700 1 $aWILLIAMS, T. C. R.
700 1 $aPOSCHENRIEDER, C.
700 1 $aJANSEN, S.
700 1 $aPINHEIRO, M. H. O.
700 1 $aSOARES, I. P.
700 1 $aFRANCO, A. C.
773 $tPlant Biology, 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agroenergia (CNPAE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
