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Changes in vegetation cover of the Pantanal wetland detected by Vegetation Index: a strategy for conservation Biota Neotropica
Miranda,Ciomara de Souza; Paranho Filho,Antonio Conceição; Pott,Arnildo.
The Brazilian Pantanal wetland undergoes landscape alterations that can cause impacts on hydrological processes, changing the flood pulse. The objective of this work is to analyse the vegetation cover of the Pantanal in the period of 2000, 2008 and 2015, and to make a projection for 2030. Therefore, NDVI from the sensor MODIS was analysed and the transition matrix was calculated by the DINAMICA EGO. The methods adopted were open sources. The results were worrisome, indicating alterations of the vegetation cover of the Pantanal, with an increase of short vegetation (grasslands or pastures) in the evaluated period. The projection pointed out that in 2030 the Brazilian Pantanal wetland area will be covered by 78% of short vegetation and only 14% of dense...
Tipo: Info:eu-repo/semantics/article Palavras-chave: EGO DYNAMICS; Wetland; Geoprocessing; NDVI; Transition rate.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100202
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Compartimentação geomorfológica do Parque Nacional da Chapada dos Veadeiros baseada em técnicas de geoprocessamento. Infoteca-e
CARVALHO JÚNIOR, O. A. de; MARTINS, E. de S.; GUIMARÃES, R. F.; CARVALHO, A. P. F. de.
ABSTRACT: The necessity of creating a main plan for national parks is necessary for the technique's improvement for a better understanding of the environmental factors thar interfere in the conservation of these units. In this context, image processing techniques are important tools in this characterization. In this paper, we describe the use of the terrain Digital Elevation Model (DEM) as a tool for the description of the geological and geomorphological's characteristics from the Chapada dos Veadeiros National park, that has 60,000 ha and it is located in Cavalcante town and Alto Paraíso de Goiás town (GO). By the visual analysis of the DEM is very clear the relief forms that furnish a strong aid to the understanding of the distribuition of the...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Geoprocessamento; Mapeamento; Brasil; Geoprocessing; Mapping.; Cerrado; Geomorfologia; Sensoriamento Remoto; Solo.; Sistema de Informação Geográfica; Brazil; Geomorphology; Geographic information systems; Remote sensing; Soil..
Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568005
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Detailed soil survey of an experimental watershed representative of the Brazilian Coastal Plains and its practical application Ciência e Agrotecnologia
Santos,Walbert Júnior Reis dos; Curi,Nilton; Silva,Sérgio Henrique Godinho; Fonseca,Sebastião da; Silva,Elidiane da; Marques,João José.
This paper presents a detailed soil survey of an experimental watershed with representative pedoclimatic characteristics of the Coastal Plains in Espírito Santo State and its practical applications. For the pedological survey, 35 observation sites and three soil profiles were sampled and described, which were morphologically characterized and subjected to physical (particle size) and chemical analyses (routine and sulfuric acid digestion). The soil map was made using the geographic information system ArcGIS 9.3. This GIS software was also used to generate the digital elevation model (DEM) for identifying the slope classes. SAGA software was used to calculate the topographic wetness index (WI) which aided in a more accurate separation of Haplic Organosol...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil map; Geoprocessing; GIS.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000100006
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Epidemiology of hepatitis B virus in the cities of the northern region of Espírito Santo, Brazil Anais da ABC (AABC)
FONTES,ANDRÉ M.; ARDISSON,JULIANA S.; SOUZA,MARCO A.A.; FREITAS,RODRIGO R.; PANCOTO,JOÃO A.T..
ABSTRACT The World Health Organization (WHO) estimates that approximately 2 billion people worldwide have already had contact with hepatitis B virus (HBV) and 373 million have become chronic carriers. Hepatitis B is a major cause of chronic hepatitis, cirrhosis and hepatocellular carcinoma, leading to a large number of deaths annually. Both viral factors and the host immune response have been implicated in the pathogenesis and clinical result of HBV infection. Many Brazilian cities, including the cities of the northern region of the state of Espírito Santo are located in regions with little health infrastructure. Our study performed an epidemiological analysis of cases of Hepatitis B in São Mateus, using methodology of Geographic Information System (GIS),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hepatitis B; Epidemiology; Geoprocessing; Espírito Santo.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401549
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Estimates of Annual Soil Loss Rates in the State of São Paulo, Brazil Rev. Bras. Ciênc. Solo
Medeiros,Grasiela de Oliveira Rodrigues; Giarolla,Angelica; Sampaio,Gilvan; Marinho,Mara de Andrade.
ABSTRACT: Soil is a natural resource that has been affected by human pressures beyond its renewal capacity. For this reason, large agricultural areas that were productive have been abandoned due to soil degradation, mainly caused by the erosion process. The objective of this study was to apply the Universal Soil Loss Equation to generate more recent estimates of soil loss rates for the state of São Paulo using a database with information from medium resolution (30 m). The results showed that many areas of the state have high (critical) levels of soil degradation due to the predominance of consolidated human activities, especially in growing sugarcane and pasture use. The average estimated rate of soil loss is 30 Mg ha-1 yr-1 and 59 % of the area of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Erosion; USLE; Soil conservation; GIS; Geoprocessing.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100551
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Estudo de áreas suscetíveis a movimentos de massa na Rodovia RS-486 – Rota do Sol PFB - Pesquisa Florestal Brasileira
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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Georeferenced database generation with the purpose of hydrologic molding in reservoirs of the hydrographic basin of Jaguaribe river in the state of Ceará, Brazil REA
Leão,Raimundo A. de O.; Soares,Antônio A.; Teixeira,Adunias dos S.; Silva,Demetrius D. da.
The edafoclimatic conditions of the Brazilian semiarid region favor the water loss by surface runoff. The state of Ceará, almost completely covered by semiarid, has developed public policies for the construction of dams in order to attend the varied water demand. Several hydrological models were developed to support decisive processes in the complex management of reservoirs. This study aimed to establish a methodology for obtaining a georeferenced database suitable for use as input data in hydrological modeling in the semiarid of Ceará. It was used images of Landsat satellite and SRTM Mission, and soil maps of the state of Ceará. The Landsat images allowed the determination of the land cover and the SRTM Mission images, the automatic delineation of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geoprocessing; GIS; Hydrologic models; Curve number; Jaguaribe River; Semiarid.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200017
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Historical land-cover/use in different slope and riparian buffer zones in watersheds of the state of São Paulo, Brazil Scientia Agricola
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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Identificação das áreas susceptíveis aos processos erosivos em duas bacias do Sistema Cantareira por meio de diferentes cenários - DOI: 10.4025/actasciagron.v31i1.6643 Agronomy
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...
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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Identification of grain areas replaced by sugarcane and analysis of the relationship with family farming production in the state of Goiás REA
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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Land use and occupation analysis of Permanent Preservation Areas in Lavras County, MG Ciência e Agrotecnologia
Reis,Aliny Aparecida dos; Teixeira,Marcelo Dias; Acerbi Júnior,Fausto Weimar; Mello,José Marcio de; Leite,Lucilia Rezende; Silva,Sérgio Teixeira da.
The Permanent Preservation Areas (PPAs) are considered essential for the maintenance of local biodiversity, so that your protection is regulated by the Brazilian legislation. This work had the objective of delimiting permanent preservation areas according to determinations of the current Brazilian environmental legislation, and identify the occurrence of conflict between the land use and legislation in Lavras county, MG, by combination of technologies of remote sensing and geographic information systems. The PPAs correspond to 42.33% of Lavras county's territory. The conflict between the land use and environmental legislation occurs in 63.48% of PPAs' territory, mainly corresponding to the pasture areas, bare soil and agriculture. The PPAs of tops of hills...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental legislation; Land cover; Geoprocessing.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000300005
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Mapeamento de cobertura vegetal do bioma Cerrado: estratégias e resultados. Infoteca-e
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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Mapeamento de unidades experimentais com GPS: caso de estudo da Embrapa Cerrados. Infoteca-e
SHIRATSUCHI, L. S.; SANO, E. E..
ABSTRACT: The major objective of this work was to map the research units and the infrastructure available in the Embrapa Cerrados experimental farm in Planaltina, Federal District. More than 190 identities were observed and mapped through the use of GPS portable receiver with an accuracy of about five meters. The UTM coordinates obtained by the GPS were stored in a Geographical Information System (GIS) to generate polygons, lines and points of those identities. A set of these GPS coordinates were also used as the control points for georreferencing the thematic maps founds in the Atlas od CPAC )soils, slope, geomorphology, natural vegetation, forest resources and biological reserves). This study showed that the use of GPS receivers and the resources...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Geoprocessamento; Georeferenciamento; GPS; Embrapa Cerrados; Mapeamento; Geoprocessing; Pilot farms; Mapping.; Fazenda Experimental; Sistema de Informação Geográfica.; Geographic information systems..
Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568131
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Mapeamento geomorfológico da bacia hidrográfica do Alto Rio Preto a partir do processamento digital de imagem SRTM. Infoteca-e
LIMA, L. A. DE S.; MARTINS, E. de S.; BRAGA, A. R. dos S.; CASTRO, K. B. DE; SOUZA, V. V. DE.
bitstream/item/78262/1/p2009-074.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Geoprocessamento; Landscape; SRTM data; Geotechnology; Mapping; Geoprocessing; Watershed.; Bacia Hidrográfica; Cartografia.; Brazil; Geomorphology; Topography..
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/711888
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MODELAGEM DE BANCO DE DADOS DE GEOPROCESSAMENTO APLICADO NA AGRICULTURA AgEcon
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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O emprego do Geoprocessamento na Análise Espacial da Bacia Hidrográfica do Córrego Guariroba, Campo Grande – MS Ciências Agrárias
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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Soil maps, field knowledge, forest inventory and Ecological-Economic Zoning as a basis for agricultural suitability of lands in Minas Gerais elaborated in GIS Ciência e Agrotecnologia
Silva,Vladimir Antonio; Curi,Nilton; Marques,João José Granate; Carvalho,Luis Marcelo Tavares de; Santos,Walbert Júnior Reis dos.
Lands (broader concept than soils, including all elements of the environment: soils, geology, topography, climate, water resources, flora and fauna, and the effects of anthropogenic activities) of the state of Minas Gerais are in different soil, climate and socio-economics conditions and suitability for the production of agricultural goods is therefore distinct and mapping of agricultural suitability of the state lands is crucial for planning guided sustainability. Geoprocessing uses geographic information treatment techniques and GIS allows to evaluate geographic phenomena and their interrelationships using digital maps. To evaluate the agricultural suitability of state lands, we used soil maps, field knowledge, forest inventories and databases related to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geoprocessing; Land suitable for agriculture; Sustainability; Multicriteria analysis.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600007
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Spatial distribution of canine Visceral Leishmaniasis in Ilha Solteira, São Paulo, Brazil REA
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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Spatiotemporal mapping of soybean plantations in Rondônia, Western Brazilian Amazon Acta Amazonica
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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Sugarcane crop efficiency in two growing seasons in São Paulo State, Brazil PAB
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
Registros recuperados: 25
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