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Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
14/06/2021 |
Data da última atualização: |
16/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVA, L. A. P. da; BOLFE, E. L.; SOUZA, C. M. P. de; FILGUEIRAS, R. |
Afiliação: |
LUCAS AUGUSTO PEREIRA DA SILVA, UFU; EDSON LUIS BOLFE, CNPTIA; CRISTIANO MARCELO PEREIRA DE SOUZA, UNIMONTES; ROBERTO FILGUEIRAS, UFV. |
Título: |
The sensitivity of evapotranspiration for land uses and topography in area of Cerrado Biome - Brazil. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Espaço & Geografia, v. 24, n. 1, p. 132-148, 2021. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Evapotranspiration (ET) is a crucial element in the spatiotemporal dynamics of moisture, energy, and heat, and is related to climatic, pedogeomorphological, and phytophysiognomic aspects of the landscape. Therefore, estimating ET requires dynamic and integrated temporal analysis with biophysical landscape factors. The study aimed to analyze the behavior of ET through the analysis of land use and land cover and topographic in time series. The Simple Algorithm for Evapotranspiration Recovery (SAFER) model was used to obtain the variable ET in the periods of 01/21, 02/22, 05/13 and 06/30/2019 (variables). A database of explanatory covariates was constructed, including land use and land cover, satellite image data (Landsat-8) and digital elevation model (SRTM). The values of variables and covariates were extracted into a grid of points and separated for three altimetric conditions, and the linear Gaussian Models (GLM) were applied to the point data. The most explanatory spectral covariates for the ET variation were Albedo and Surface Temperature. And the covariates related to topography were Digital Elevation Model and Topographic Moisture Index. In general, the wet period presents a higher ET rate (2.06 mm d-¹). Forests generated the highest ET regardless of period (1.62 mm d-¹ to 4.03 mm d-¹). Elevated topography also influences the increase in ET in relation to the same lower altimetry classes (A2 and A3). This influence is associated with the altitude dynamics and intrinsic elements of the region, such as the marshy environment in the A3 region, where the highest ET values occurred. This work stands out from its peers for addressing the influence of landscape aspects on the knowledge of evapotranspiration variation, a vanguard theme in the scope of spatial analysis. MenosAbstract: Evapotranspiration (ET) is a crucial element in the spatiotemporal dynamics of moisture, energy, and heat, and is related to climatic, pedogeomorphological, and phytophysiognomic aspects of the landscape. Therefore, estimating ET requires dynamic and integrated temporal analysis with biophysical landscape factors. The study aimed to analyze the behavior of ET through the analysis of land use and land cover and topographic in time series. The Simple Algorithm for Evapotranspiration Recovery (SAFER) model was used to obtain the variable ET in the periods of 01/21, 02/22, 05/13 and 06/30/2019 (variables). A database of explanatory covariates was constructed, including land use and land cover, satellite image data (Landsat-8) and digital elevation model (SRTM). The values of variables and covariates were extracted into a grid of points and separated for three altimetric conditions, and the linear Gaussian Models (GLM) were applied to the point data. The most explanatory spectral covariates for the ET variation were Albedo and Surface Temperature. And the covariates related to topography were Digital Elevation Model and Topographic Moisture Index. In general, the wet period presents a higher ET rate (2.06 mm d-¹). Forests generated the highest ET regardless of period (1.62 mm d-¹ to 4.03 mm d-¹). Elevated topography also influences the increase in ET in relation to the same lower altimetry classes (A2 and A3). This influence is associated with the altitude dynamics and ... Mostrar Tudo |
Palavras-Chave: |
GLM; Hypsometric regions; Modelo Algoritmo Simples para Recuperação da Evapotranspiração; Modelo SAFER; Modelos Lineares Gaussianos; Regiões Altimétricas; Série temporal; Uso do solo. |
Thesagro: |
Cerrado; Cobertura do Solo; Evapotranspiração; Sensoriamento Remoto. |
Thesaurus Nal: |
Evapotranspiration; Land cover; Land use; Remote sensing. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/223736/1/AP-Sensitivity-evapotranspiration-2021.pdf
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Marc: |
LEADER 02868naa a2200349 a 4500 001 2132273 005 2021-08-16 008 2021 bl uuuu u00u1 u #d 100 1 $aSILVA, L. A. P. da 245 $aThe sensitivity of evapotranspiration for land uses and topography in area of Cerrado Biome - Brazil.$h[electronic resource] 260 $c2021 520 $aAbstract: Evapotranspiration (ET) is a crucial element in the spatiotemporal dynamics of moisture, energy, and heat, and is related to climatic, pedogeomorphological, and phytophysiognomic aspects of the landscape. Therefore, estimating ET requires dynamic and integrated temporal analysis with biophysical landscape factors. The study aimed to analyze the behavior of ET through the analysis of land use and land cover and topographic in time series. The Simple Algorithm for Evapotranspiration Recovery (SAFER) model was used to obtain the variable ET in the periods of 01/21, 02/22, 05/13 and 06/30/2019 (variables). A database of explanatory covariates was constructed, including land use and land cover, satellite image data (Landsat-8) and digital elevation model (SRTM). The values of variables and covariates were extracted into a grid of points and separated for three altimetric conditions, and the linear Gaussian Models (GLM) were applied to the point data. The most explanatory spectral covariates for the ET variation were Albedo and Surface Temperature. And the covariates related to topography were Digital Elevation Model and Topographic Moisture Index. In general, the wet period presents a higher ET rate (2.06 mm d-¹). Forests generated the highest ET regardless of period (1.62 mm d-¹ to 4.03 mm d-¹). Elevated topography also influences the increase in ET in relation to the same lower altimetry classes (A2 and A3). This influence is associated with the altitude dynamics and intrinsic elements of the region, such as the marshy environment in the A3 region, where the highest ET values occurred. This work stands out from its peers for addressing the influence of landscape aspects on the knowledge of evapotranspiration variation, a vanguard theme in the scope of spatial analysis. 650 $aEvapotranspiration 650 $aLand cover 650 $aLand use 650 $aRemote sensing 650 $aCerrado 650 $aCobertura do Solo 650 $aEvapotranspiração 650 $aSensoriamento Remoto 653 $aGLM 653 $aHypsometric regions 653 $aModelo Algoritmo Simples para Recuperação da Evapotranspiração 653 $aModelo SAFER 653 $aModelos Lineares Gaussianos 653 $aRegiões Altimétricas 653 $aSérie temporal 653 $aUso do solo 700 1 $aBOLFE, E. L. 700 1 $aSOUZA, C. M. P. de 700 1 $aFILGUEIRAS, R. 773 $tEspaço & Geografia$gv. 24, n. 1, p. 132-148, 2021.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
18/05/1995 |
Data da última atualização: |
10/04/2017 |
Autoria: |
POTT, A. |
Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS). |
Título: |
Arvores no sistema pastoril. |
Ano de publicação: |
1993 |
Fonte/Imprenta: |
In: SIMPOSIO SOBRE USOS MULTIPLOS DE LEGUMINOSAS ARBUSTIVAS E ARBOREAS, 1., 1993, Nova Odessa. Anais... Nova Odessa: Instituto de Zootecnia, 1993. p.95-129. |
Idioma: |
Português |
Conteúdo: |
E feita uma breve revisao e discussao sobre terminologia, importancia, aspectos culturais, conhecimento e sistemas existentes nas regioes brasileiras, vantagens e limitacoes de arvores em pastagens e criterios de escolha de especies, citando leguminosas com maior potencial de utilizacao forrageira e uso multiplo, como madeireira, apicola, frutifera e alimenticia, industrial, medicinal, veterinario, habitat para fauna, recuperacao de area degradada e controle biologico. |
Palavras-Chave: |
Browse; Grassland; Leguminosa arborea arbustiva; Pasto arboreo; Pasture; Savanna; Silvipastoril; Simposio. |
Thesagro: |
Árvore; Caatinga; Cerrado; Flora; Forragicultura; Leguminosa; Leguminosae; Pastagem. |
Thesaurus NAL: |
agroforestry; legumes. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01362naa a2200337 a 4500 001 1787960 005 2017-04-10 008 1993 bl --- 0-- u #d 100 1 $aPOTT, A. 245 $aArvores no sistema pastoril. 260 $c1993 520 $aE feita uma breve revisao e discussao sobre terminologia, importancia, aspectos culturais, conhecimento e sistemas existentes nas regioes brasileiras, vantagens e limitacoes de arvores em pastagens e criterios de escolha de especies, citando leguminosas com maior potencial de utilizacao forrageira e uso multiplo, como madeireira, apicola, frutifera e alimenticia, industrial, medicinal, veterinario, habitat para fauna, recuperacao de area degradada e controle biologico. 650 $aagroforestry 650 $alegumes 650 $aÁrvore 650 $aCaatinga 650 $aCerrado 650 $aFlora 650 $aForragicultura 650 $aLeguminosa 650 $aLeguminosae 650 $aPastagem 653 $aBrowse 653 $aGrassland 653 $aLeguminosa arborea arbustiva 653 $aPasto arboreo 653 $aPasture 653 $aSavanna 653 $aSilvipastoril 653 $aSimposio 773 $tIn: SIMPOSIO SOBRE USOS MULTIPLOS DE LEGUMINOSAS ARBUSTIVAS E ARBOREAS, 1., 1993, Nova Odessa. Anais... Nova Odessa: Instituto de Zootecnia, 1993. p.95-129.
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