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| Registros recuperados: 25 | |
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| Yamaciro, Raony Moreira Gomes. |
| The present study aimed to use Geoprocessing techniques applied to basin management. The study area was the Guariroba microbasin in Campo Grande city - MS. Using the Digital Terrain Model, from EMBRAPA website, topographical data were extracted in Arcgis environment, a TIN grade was generated and from its, a hypsometric map and a three-dimensional declivity map. The land use/cover was also mapped, using a CBERS image and the MAXVER algorithm in ERDAS environment. The Guariroba basin presents low levels of declivity, with fragments of native vegetation and high degree of degradation, distributed in 24 % of the total of the area of the basin. |
| Tipo: Article |
Palavras-chave: Geoprocessing; Bacia Hidrográfica; Digital Terrain Model. |
| Ano: 2007 |
URL: http://hdl.handle.net/2315/89 |
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| Lima, Maria Lucilene Alves de. |
| The use of geoprocessing has become a more important tool to map areas with substance concentrations above the patterns that may affect the quality of the water. The objective of such study was to evaluate the quality of the superficial waters of the rivers in Rondônia used for to the supplying. Through the espace measurement of the color and turbidity isoconcentration it was inferred that the quality of the waters are in agreement with the maximum limits allowed by the resolution of CONAMA n. 357/05. |
| Tipo: Article |
Palavras-chave: Geoprocessing; Rondônia; Water quality. |
| Ano: 2007 |
URL: http://hdl.handle.net/2315/100 |
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| Wrublack,Suzana C.; Mercante,Erivelto; Boas,Marcio A. Vilas; Prudente,Victor H. R.; Silva,Jefferson L. G.. |
| ABSTRACT This study demonstrates using remote sensing, geographic information systems and multivariate statistics to study water quality in an agricultural watershed. The monitoring of water quality in the watershed of Lontras's river in the southwestern region of the State of Paraná had been done in 2012 and 2013 with a multi-parameter probe in ten sites that were defined upstream and downstream watershed, during four different seasons. Mosaicked images were used from Google Earth, Digital Elevation Model and soil types of maps, defined as the explanatory variables. The definition of the areas of influence and multivariate statistical techniques, particularly the Redundancy Analysis (RDA), were used for the correlation between variables. In a spring area,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geoprocessing; Mapping land use and occupation; Water quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000100074 |
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| Paulan,Silvana de C.; Silva,Hélio R.; Lima,Elizete A. C. de Freitas; Flores,Edílson F.; Tachibana,Vilma M.; Kanda,Cláudia Z.; Noronha Junior,Antonio C. F. de; Dobre,Paulo R.. |
| Visceral Leishmaniasis (VL) is caused by protozoan of genus Leishmania and transmitted by sand flies of genus Lutzomyia, which has been adapted to the peridomicile environment where dogs are their mainly food source, increasing the risk for human cases. In this study, techniques of geoprocessing and spatial statistics were utilized as a contribution to understanding the epidemiological dynamics of VL in the urban area of Ilha Solteira, SP. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geoprocessing; Sand fly; Epidemiology; Spatial statistics. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400016 |
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| Petrini,Maria A.; Rocha,Jansle V.. |
| In Brazil, the State of Goiás is one of sugarcane expansion's frontiers to meet the growing demand for biofuels. The objective of this study was to identify the municipalities where there were replacement of annual crops (mainly grains) by sugarcane in the state of Goiás, as well as indicate correlations between the sugarcane expansion and the family farming production, in the period between 2005 and 2010. For this purpose, grains crop mask and sugarcane crop mask, obtained from satellite images, were intersected using geoprocessing techniques. It was also used IBGE data of sugarcane production and planted area, and data of family farming production linked with the National Food Acquisition Program (PAA), in relation to the number of cooperatives and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Geoprocessing; Ethanol; National Food Acquisition Program (PAA). |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600023 |
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| SANO, E. E.; ROSA, R.; BRITO, J. L. S.; FERREIRA, L. G.. |
| ABSTRACT: Mapping Cerrado's vegetation cover is difficult because of its geographical extemt (~ 204,7 million hectares), high seasonality, and high spatial and temporal dynamics of its land use activities. The objective of this study was to map the vegetation cover of the Cerrado biome in the 1:250,000 scale using Landsat satellite imageries from the year of 2002. The following classes of land use were considered: croplands, planted pasturelands, reforestations, urban settlements and mining areas. For natural vegetation classes, we used the Brazilian System of Vegetation Classification, developed by the IBGE - Brazilian Institute for Geography and Statistics. The methodological approach involved segmentation of the Landsat imagery, followed by the visual... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Geoprocessamento; Geoprocessing; Imagem; Land cover mapping.; Cerrado; Mapa; Sensoriamento Remoto.; Satélite; Landsat; Remote sensing.. |
| Ano: 2007 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570887 |
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| Dlugosz, Fernando Luís; Rosot, Nelson Carlos; Doetzer Rosot, Maria Augusta; Malheiros de Oliveira, Yeda Maria; Cordeiro Garrastazu, Marilice. |
| O artigo apresenta uma abordagem sobre a técnica de Levantamento Aéreo Expedito no que diz respeito às suas características, aplicações e potencialidades para as condições brasileiras, principalmente no monitoramento das mudanças na cobertura florestal no Estado do Paraná. O método consiste na observação e anotação de feições ou fenômenos a partir de sobrevoos na área de interesse, voando a baixas altitudes ao longo de uma rota pré-determinada. Também são apresentadas as vantagens da introdução da sistematização digital, que definiu a nova denominação para a técnica como Levantamento Aéreo Expedito Digital. Neste caso, as anotações são realizadas digitalmente sobre tela sensível ao toque, de um computador portátil e não sobre mapa em papel, como na... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Levantamento aéreo; Geoprocessamento; Uso da terra. Aerial survey; Geoprocessing; Land use.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/146 |
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| Monguilhott, Michele; Saldanha, Dejanira Luderitz; Sebem, Elódio; Souza, Sergio Florêncio de. |
| O desenvolvimento de novos aglomerados urbanos, bem como a necessidade de escoamento da produção de bens e a maior circulação de pessoas, exige a intervenção do homem em espaços antes não habitados ou preservados da interferência humana. Obras de infraestrutura têm efeito direto sobre os ecossistemas e a RS 486 provoca, além do impacto visual na paisagem, uma forte fragmentação no bioma Mata Atlântica. A retirada da vegetação no entorno da rodovia pode facilitar a ocorrência de desastres naturais relacionados com mudanças na geomorfologia e nos processos intempéricos, resultando em erosão e acomodação do solo. Com o objetivo de mapear áreas vulneráveis e suscetíveis a movimentos de massa na sub-bacia hidrográfica do Rio Três Forquilhas, ao longo da rodovia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vulnerabilidade; Movimento de massa; Bioma; Rodovias; Geoprocessamento; Sensoriamento remoto. Vulnerability; Mass movements; Biome; Roads; Geoprocessing; Remote sensing.. |
| Ano: 2010 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/142 |
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| Marin,Fábio Ricardo; Lopes-Assad,Maria Leonor; Assad,Eduardo Delgado; Vian,Carlos Eduardo; Santos,Marcelo Cabral. |
| A conceptual framework for crop production efficiency was derived using thermodynamic efficiency concept, in order to generate a tool for performance evaluation of agricultural systems and to quantify the interference of determining factors on this performance. In Thermodynamics, efficiency is the ratio between the output and input of energy. To establish this relationship in agricultural systems, it was assumed that the input energy is represented by the attainable crop yield, as predicted through simulation models based on environmental variables. The method of FAO's agroecological zones was applied to the assessment of the attainable sugarcane yield, while Instituto Brasileiro de Geografia e Estatística (IBGE) data were used as observed yield. Sugarcane... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum; Pedological aptitude; Geoprocessing; Agrometeorological modeling. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001100002 |
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| Borges,Ligia Francielle; Bazzi,Claudio Leones; Souza,Eduardo Godoy de; Magalhães,Paulo Sergio Graziano; Michelon,Gabriela Karoline. |
| Abstract: The objective of this work was to develop and provide a free web application able to generate thematic maps. The initiative aims to incorporate the functionalities of the “Software para Definição de Unidades de Manejo” (SDUM) desktop application, which has proven to be suitable for working with thematic maps and management zones, but that was only available for desktop computers. The developed web application was tested with real data from two agricultural fields located in the state of Paraná, Brazil. Thematic maps of soil and plant characteristics relevant to precision agriculture were created through the following interpolation methods: inverse distance, moving average, and nearest neighbor. The obtained results show that the usage of this web... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AgDataBox-Map software; Digital agriculture; Geoprocessing; Interpolation; Spatial variability. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2020000100800 |
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| Souza Filho, Theophilo Alves; Tamada, Mariela Mizota; Passos, Rosalia Maria; Abi-Abib, Nayme Petrus. |
| Este artigo propõe, a partir de uma discussão conceitual, o modelo de banco de dados predominante para o ambiente de agronegócios, relacionando-o com o tipo de dados geográficos, que são importantes para a agropecuária. É feito uma análise dos modelos de bancos de dados, especificamente aqueles utilizados nos Sistemas de Informação de Geoprocessamento (SIG), um sistema amplamente utilizado na área de agronegócios. Para aplicações deste tipo é fundamental a definição de modelagem de dados. A abordagem parte dos aspectos teóricos e conceituais de Geoprocessamento, banco de dados, sistema gerenciador dos dados e da modelagem de dados em geoprocessamento, para abstrair a forma de armazenagem ao usuário. Em seguida, trata a funcionalidade de um banco de dados... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Modelagem de Dados; Geoprocessamento; Agropecuária; Datamodeling; Geoprocessing; Agropecury; Agribusiness. |
| Ano: 2008 |
URL: http://purl.umn.edu/109673 |
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| Piedade,Tales de Campos; Melo,Vander de Freitas; Souza,Luiz Cláudio de Paula; Dieckow,Jeferson. |
| The graphical representation of spatial soil properties in a digital environment is complex because it requires a conversion of data collected in a discrete form onto a continuous surface. The objective of this study was to apply three-dimension techniques of interpolation and visualization on soil texture and fertility properties and establish relationships with pedogenetic factors and processes in a slope area. The GRASS Geographic Information System was used to generate three-dimensional models and ParaView software to visualize soil volumes. Samples of the A, AB, BA, and B horizons were collected in a regular 122-point grid in an area of 13 ha, in Pinhais, PR, in southern Brazil. Geoprocessing and graphic computing techniques were effective in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geoprocessing; GRASS GIS; ParaView; Confined soil volume; Soil acidity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400005 |
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| Silva,Alexandre Marco da; Nalon,Marco Aurélio; Kronka,Francisco José do Nascimento; Alvares,Clayton Alcarde; Camargo,Plinio Barbosa de; Martinelli,Luiz Antonio. |
| Information about the land cover of a region it is a key information for several purposes. This paper aimed to elaborate land-cover maps using digital satellite images obtained in 1997 from seven watersheds (Piracicaba, Moji-Guaçu, Alto Paranapanema, Turvo Aguapeí, Peixe, and São José dos Dourados) located in the State of São Paulo, southeastern Brazil. Additionaly, this study evaluated the relationship between land-cover and slopes of the terrain of the seven watersheds. A third objective was to estimate the percentage of riparian vegetation currently remaining along the streams in a 30-meter width buffer zone. Three research questions were posed: i) What is the dominant land-cover of these watersheds? ii) Is the riparian vegetation well preserved in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Land planning; Land management; Geoprocessing; Catchments; Rivers. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400003 |
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| COSTA,Olívia Bueno da; MATRICARDI,Eraldo Aparecido Trondoli; PEDLOWSKI,Marcos Antonio; COCHRANE,Mark Alan; FERNANDES,Luiz Cláudio. |
| ABSTRACT Although soybean production has been increasing in the state of Rondônia in the last decade, soybean planted area has been estimated indirectly using secondary datasets, which has limited understanding of its spatiotemporal distribution patterns. This study aimed to map and analyze spatial patterns of soybean expansion in Rondônia. We developed a classification technique based on Spectral Mixture Analysis (SMA) derived from Landsat imagery and Decision Tree Classification to detect and map soybean plantations in 2000, 2005, 2010, and 2014. The soybean classification map showed 93% global accuracy, 23% omission and 0% of commission errors for soybean crop fields. The greatest increases of soybean cropped area in the state of Rondônia were observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian Amazon; Tropical deforestation; Land-use and land-cover change; Geoprocessing; Agricultural commodities. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100029 |
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| Pereira, Vania Rosa; UNICAMP; Teixeira Filho, José; UNICAMP. |
| Neste trabalho, com base em Geoprocessamento e pesquisas de campo, o objetivo é identificar áreas susceptíveis à erosão na cabeceira da bacia do rio Atibaia, ou seja, as bacias dos rios Cachoeira e Atibainha a montante das barragens do Sistema Cantareira. Em relação ao relevo, além das características de declive, as áreas saturadas de água também interferem no escoamento superficial das vertentes, sendo consideradas, portanto, áreas susceptíveis à erosão. Cruzaram-se informações de relevo (declividades e áreas saturadas), uso e ocupação das terras e seus respectivos procedimentos em dois cenários: os dos anos de 1986 e 2005. Os resultados indicaram que, em 1986 e 2005, o uso e ocupação são mata nativa, pastagem e silvicultura e que está ocorrendo uma... |
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Palavras-chave: 5.02.01.07-7 Solos Florestais manejo de bacia hidrográfica; Susceptibilidade à erosão hídrica; Geoprocessamento. watershed management; Hydric erosion susceptibility; Geoprocessing. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6643 |
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| Registros recuperados: 25 | |
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