Search Results - "Pinheiro, Helena Saraiva Koenow"
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Hydropedological digital mapping: machine learning applied to spectral VIS-IR and radiometric data dimensionality reduction
Published in Revista Brasileira de Ciência do Solo (01-01-2023)“…ABSTRACT Pedosphere-hydrosphere interface accounts for the association between soil hydrology and landscape, represented by topographic and Remote Sensing data…”
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Soil heavy metal content on the hillslope region of Rio de Janeiro, Brazil: reference values
Published in Environmental monitoring and assessment (01-06-2018)“…The increasing concern regarding the preservation of soil quality suggests the adoption of quality reference values as a first step in environmental monitoring…”
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Prediction of Topsoil Texture Through Regression Trees and Multiple Linear Regressions
Published in Revista Brasileira de Ciência do Solo (01-01-2018)“…Users of soil survey products are mostly interested in understanding how soil properties vary in space and time. The aim of digital soil mapping (DSM) is to…”
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Mapping soil properties in a poorly-accessible area
Published in Revista Brasileira de Ciência do Solo (01-01-2020)“…ABSTRACT Soil maps are important to evaluate soil functions and support decision-making process, particularly for soil properties such as pH, carbon content…”
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Height Above the Nearest Drainage to Predict Flooding Areas in São Luiz do Paraitinga, São Paulo
Published in Floresta e ambiente (2021)“…Abstract Natural events associated to environmental disasters has increased with climate changes. Understanding the watershed behavior allows the managers to…”
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Sample design effects on soil unit prediction with machine: randomness, uncertainty, and majority map
Published in Revista Brasileira de Ciência do Solo (01-01-2020)“…ABSTRACT Notwithstanding the importance of soil surveys, advances in digital soil mapping have mainly focused on mapping soil attributes or properties rather…”
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Mapping Soil Cation Exchange Capacity in a Semiarid Region through Predictive Models and Covariates from Remote Sensing Data
Published in Revista Brasileira de Ciência do Solo (01-01-2018)“…Planning sustainable use of land resources requires reliable information about spatial distribution of soil physical and chemical properties related to…”
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Mapping Soil Organic Carbon and Organic Matter Fractions by Geographically Weighted Regression
Published in Journal of environmental quality (01-07-2018)“…The soil organic matter (SOM) content and dynamic are related to vegetation cover, climate, relief, and geology; these factors have strong variation in space…”
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Clustering airborne gamma-ray spectrometry data in Nova Friburgo, State of Rio de Janeiro, southeastern Brazil
Published in Journal of applied geophysics (01-02-2023)“…The goal of this study was to test different image clustering techniques, using airborne gamma-ray spectrometry data to optimize the interpretation of areas…”
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Spatial Bayesian belief networks: a participatory approach for mapping environmental vulnerability at the Itatiaia National Park, Brazil
Published in Environmental earth sciences (01-07-2020)“…A Bayesian belief network (BBN) was implemented to assess environmental vulnerability in the Itatiaia National Park (INP). Information of soils, land…”
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Landscape Indicators of the Success of Protected Areas on Habitat Recovery for the Golden Lion Tamarin (Leontopithecus rosalia)
Published in Écoscience (Sainte-Foy) (01-01-2018)“…Since 1974, conservation efforts to protect an endangered species, the Golden Lion Tamarin (GLT), have led to the creation of the first strict nature reserve…”
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Data mining methods applied to map soil units on tropical hillslopes in Rio de Janeiro, Brazil
Published in Geoderma Regional (01-06-2017)“…A soil survey is the main source of soil spatial information and is very useful in supporting land use decisions, especially for agronomic purposes. However,…”
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IDENTIFICAÇÃO DE ÁREAS PARA RESTAURAÇÃO FLORESTAL VISANDO A PREVENÇÃO DE DESASTRES NATURAIS EM SÃO LUIZ DO PARAITINGA, SÃO PAULO, BRASIL
Published in Revista do Instituto Florestal (20-12-2022)“…O aumento dos casos de inundações e movimentos de massa associados à presença humana expõe a necessidade de compreender os fatores condicionantes e…”
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Mapeamento da Fragilidade Ambiental na Bacia do Rio Aldeia Velha, RJ
Published in Floresta e ambiente (01-06-2016)“…RESUMO Este trabalho apresenta um modelo para determinar a fragilidade ambiental em bacias hidrográficas. O estudo foi realizado na Bacia do Rio Aldeia Velha,…”
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Regressão linear múltipla e modelo Random Forest para estimar a densidade do solo em áreas montanhosas
Published in Pesquisa agropecuaria brasileira (01-09-2016)“…Resumo O objetivo deste trabalho foi o desenvolvimento de modelos com diferentes conjuntos de dados, para estimar a densidade de solos de regiões tropicais…”
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Mapeamento digital de areia, argila e carbono orgânico por modelos Random Forest sob diferentes resoluções espaciais
Published in Pesquisa agropecuaria brasileira (01-09-2016)“…Resumo O objetivo deste trabalho foi avaliar a influência da resolução espacial do modelo digital de elevação e da eficiência de modelos Random Forest sobre a…”
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Ferramentas de pedometria para caracterização da composição granulométrica de perfis de solos hidromórficos
Published in Pesquisa agropecuaria brasileira (01-09-2016)“…Resumo O objetivo deste trabalho foi avaliar ferramentas pedométricas para caracterização da composição granulométrica (areia, silte e argila) e comparação de…”
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Método do hipercubo latino condicionado para a amostragem de solos na presença de covariáveis ambientais visando o mapeamento digital de solos
Published in Revista Brasileira de Ciência do Solo (01-04-2014)“…A amostragem é uma das etapas mais importantes dos levantamentos de solos. No entanto, os esquemas de amostragem utilizados nos levantamentos convencionais têm…”
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Modelos de elevação para obtenção de atributos topográficos utilizados em mapeamento digital de solos
Published in Pesquisa agropecuaria brasileira (01-09-2012)“…O objetivo deste trabalho foi avaliar modelos digitais de elevação (MDE), obtidos por diferentes fontes de dados, e selecionar um deles para derivar variáveis…”
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Spatial distribution and factors influencing the accumulation of toxic metals in soils in mountain agroecosystems, Rio De Janeiro, Brazil
Published in Environmental geochemistry and health (01-10-2024)“…The concentrations of toxic metals (TM) were analyzed in 498 samples of agricultural soils used for intensive vegetable cultivation in the watershed of…”
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