Consulta: creatorFacets:"Bispo,Diêgo Faustolo Alves"
Registros recuperados: 5
Data/hora: 13/06/2024 02:52:31

Spatial Distribution of Annual and Monthly Rainfall Erosivity in the Jaguarí River Basin
Provedor de dados: 90
Autores: Pontes,Lucas Machado; Silva,Marx Leandro Naves; Bispo,Diêgo Faustolo Alves; Avalos,Fabio Arnaldo Pomar; Oliveira,Marcelo Silva de; Rocha,Humberto Ribeiro da.
ABSTRACT The Jaguarí River Basin forms the main water supply sources for the São Paulo Metropolitan Region and other cities in the state. Since the kinetic energy of rainfall is the driving force of water erosion, the main cause of land and water degradation, we tested the hypothesis of correlation between the erosive potential of rainfall (erosivity) and geographical coordinates and altitude for the purpose of predicting the spatial and temporal distribution of the rainfall erosivity index (EI30) in the basin. An equation was used to estimate the (EI30) in accordance with the average monthly and total annual rainfall at rainfall stations with data available for the study area. In the regression kriging technique, the deterministic part was modeled using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geostatistics; Soil and water conservation; Erosion; EI30.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100529

Assessment of soil erosion in olive orchards (Olea europaea L.) under cover crops management systems in the tropical region of Brazil
Provedor de dados: 90
Autores: Beniaich,Adnane; Silva,Marx Leandro Naves; Guimarães,Danielle Vieira; Bispo,Diêgo Faustolo Alves; Avanzi,Junior Cesar; Curi,Nilton; Pio,Rafael; Dondeyne,Stefaan.
ABSTRACT In the tropics, water erosion is one of the most important factors leading to the degradation and deterioration of agricultural land. Olive orchards have a low canopy coverage, especially during the first years after planting, due to the low density of olive trees. Given the fast expansion of olive orchards in Brazil, this study aimed to evaluate the effect of cover vegetation on soil and water losses under natural rainfall. In addition, it was assessed the crop performance and the vegetation cover index in different management systems in olive orchards. The study was carried out in soil erosion plots, where water and sediment were sampled and measured over two crops season, under the following treatments: in the first season, bare soil with olive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil conservation; Soil loss; Land degradation; Runoff; Olive cultivation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100503

CHARACTERIZATION OF HEADWATERS PEATS OF THE RIO ARAÇUAÍ, MINAS GERAIS STATE, BRAZIL
Provedor de dados: 90
Autores: Bispo,Diêgo Faustolo Alves; Silva,Alexandre Christofaro; Christofaro,Cristiano; Silva,Max Leandro Naves; Barbosa,Maurício Soares; Silva,Bárbara Pereira Christofaro; Barral,Uidemar Moraes.
Peatlands are soil environments that accumulate water and organic carbon and function as records of paleo-environmental changes. The variability in the composition of organic matter is reflected in their morphological, physical, and chemical properties. The aim of this study was to characterize these properties in peatlands from the headwaters of the Rio Araçuaí (Araçuaí River) in different stages of preservation. Two cores from peatlands with different vegetation types (moist grassland and semideciduous seasonal forest) from the Rio Preto [Preto River] headwaters (conservation area) and the Córrego Cachoeira dos Borges [Cachoeira dos Borges stream] (disturbed area) were sampled. Both are tributaries of the Rio Araçuaí. Samples were taken from layers of 15...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Histosol; Soil organic matter; Carbon isotopes.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200475

Relationship between soil organic matter fractions and cover plants in Olive post planting
Provedor de dados: 94
Autores: Guimarães,Danielle Vieira; Silva,Marx Leandro Naves; Beiniach,Adnane; Bispo,Diêgo Faustolo Alves; Contins,Jéssica Gabriela Pimentel; Curi,Nilton.
Abstract  Erosion is the main cause of soil degradation, compromising soil productivity and sustainability. As soil organic matter (SOM) is a key indicator of quality, this study aimed to evaluate the effect of different olive tree managements on SOM and its soil fractions in soil (Inceptisol) and erosion sediments. Five treatments were installed: bare soil, olive cultivation in bare soil, olive tree intercropped with jack bean, olive tree intercropped with pearl millet, and olive tree cultivated with spontaneous vegetation; a contiguous area of native vegetation was used as reference. Carbon in soil and sediment were determined by wet oxidation with external heating, while the fractionation of SOM was performed based on granulometry. The Carbon Management...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbon Management Index; Cover plants; Olea europaea L.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000603001

Phosphorus transfer at a small catchment in southeastern Brazil: distributed modelling in different land use scenarios
Provedor de dados: 64
Autores: Bispo,Diêgo Faustolo Alves; Silva,Marx Leandro Naves; Marques,João José Granate de Sá e Melo; Bechmann,Marianne; Batista,Pedro Velloso Gomes; Curi,Nilton.
ABSTRACT Identifying and ranking nutrient loss risk areas are important steps towards integrated catchment management. This study aimed to apply the P index model at the Posses catchment, south of the state of Minas Gerais, Brazil. We applied the P index for the current land use at the Posses catchment and for two hypothetical scenarios: scenario 1, in which P fertilizer was applied to all land uses, except for native forests; and scenario 2, which considered the use of P fertilizer as in scenario 1, and that the Environmental Protection Areas referring to the riparian forests and springs were totally restored. Considering current land use, almost the whole catchment area (91.4%) displayed a low P loss risk. The highest P index was associated to croplands...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: P index; Nutrient loss; Water erosion; Land use management; Environmental services.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000500565