Forest Mapping
Mostrando 13-24 de 101 artigos, teses e dissertações.
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13. Gestão do uso do solo no entorno do Rio Sapucaí em Itajubá (MG)
Resumo A expansão urbana no município de Itajubá (MG) ocorreu em áreas onde atualmente o Código Florestal visa proteger, denominadas áreas urbanas de ocupação consolidadas. Porém, a carência de dados específicos da região dificulta a tomada de decisão dos gestores. Nesse contexto, este trabalho tem o objetivo de diagnosticar as áreas do munic�
urbe, Rev. Bras. Gest. Urbana. Publicado em: 21/01/2019
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14. Mapping Soil Cation Exchange Capacity in a Semiarid Region through Predictive Models and Covariates from Remote Sensing Data
ABSTRACT: Planning sustainable use of land resources requires reliable information about spatial distribution of soil physical and chemical properties related to environmental processes and ecosystemic functions. In this context, cation exchange capacity (CEC) is a fundamental soil quality indicator; however, it takes money and time to obtain this data. Alth
Rev. Bras. Ciênc. Solo. Publicado em: 18/10/2018
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15. Multinomial Logistic Regression and Random Forest Classifiers in Digital Mapping of Soil Classes in Western Haiti
ABSTRACT Digital soil mapping (DSM) has been increasingly used to provide quick and accurate spatial information to support decision-makers in agricultural and environmental planning programs. In this study, we used a DSM approach to map soils in western Haiti and compare the performance of the Multinomial Logistic Regression (MLR) with Random Forest (RF) to
Rev. Bras. Ciênc. Solo. Publicado em: 02/07/2018
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16. COMPARATIVE ASSESSMENT BETWEEN PER-PIXEL AND OBJECT-ORIENTED FOR MAPPING LAND COVER AND USE
ABSTRACT: The traditional per-pixel classification methods consider only spectral information, and may be limited. Object-based classifiers, however, also consider shape and texture, firstly segmenting the image, and then classifying individual objects. Thus, a Geographic Object-Based Image Analysis (GEOBIA) was compared in conjunction with data mining techn
Eng. Agríc.. Publicado em: 2017-09
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17. Modeling and mapping basal area of Pinus taeda L. plantation using airborne LiDAR data
ABSTRACT Basal area (BA) is a good predictor of timber stand volume and forest growth. This study developed predictive models using field and airborne LiDAR (Light Detection and Ranging) data for estimation of basal area in Pinus taeda plantation in south Brazil. In the field, BA was collected from conventional forest inventory plots. Multiple linear regress
An. Acad. Bras. Ciênc.. Publicado em: 14/08/2017
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18. The role of terrestrial bromeliads in determining the spatial organization of plant life forms in a tropical coastal forest
ABSTRACT The interplay between plant-plant interactions and light heterogeneity in the understory of tropical forests has rarely been examined. We aimed to identify the relative importance of the understory light environment and terrestrial bromeliads in explaining the abundance and spatial organization of different plant life forms along a coastal forest gr
Acta Bot. Bras.. Publicado em: 13/03/2017
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19. Evaluation of deciduous broadleaf forests mountain using satellite data using neural network method near Caspian Sea in North of Iran
ABSTRACT During the recent decades, deciduous forests have been molested by human intervention. Easy access, abundance and diversity of valuable forest products have led to increased population density, creating new residential areas and deforestation activities. Revealing changes is one of the fundamental methods in management and assessment of natural reso
An. Acad. Bras. Ciênc.. Publicado em: 2016-12
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20. Anopheles fauna of coastal Cayenne, French Guiana: modelling and mapping of species presence using remotely sensed land cover data
Little is known about the Anopheles species of the coastal areas of French Guiana, or their spatiotemporal distribution or environmental determinants. The present study aimed to (1) document the distribution of Anopheles fauna in the coastal area around Cayenne, and (2) investigate the use of remotely sensed land cover data as proxies of Anopheles presence.
Mem. Inst. Oswaldo Cruz. Publicado em: 10/11/2016
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21. Mapping of sites in forest stands
Geralmente as empresas florestais usam a área total de um ano de plantio como estrato mínimo do total da população e, consequentemente, o processamento do inventário florestal tem sido realizado pela aplicação da amostragem aleatória estratificada. Este estudo foi realizado na Floresta Nacional de Três Barras, Brasil, e teve como objetivo classifica
An. Acad. Bras. Ciênc.. Publicado em: 2014-12
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22. Temporal Geobiotic Mapping: a conceptual mapping technique toward visualising geobiotic areas in cross-section
Geobiota are defined by taxic assemblages (i.e., biota) and their defining abiotic breaks, which are mapped in cross-section to reveal past and future biotic boundaries. We term this conceptual approach Temporal Geobiotic Mapping (TGM) and offer it as a conceptual approach for biogeography. TGM is based on geological cross-sectioning, which creates maps base
Rev. Bras. entomol.. Publicado em: 20/09/2013
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23. Estimação do risco e do valor da floresta para fins securitários no Brasil / Estimation of risk and forest value for insurance in Brazil
O objetivo do estudo é apresentar um conjunto de alternativas ao mercado de seguro florestal que sistematize o processo de valoração da floresta em apólices de seguro e que proponha os indicadores mais importantes para mapeamento de riscos. Atualmente o cálculo do Valor em Risco (VR) se baseia no custeio ou no valor comercial da floresta. Esse método d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/03/2012
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24. Model selection for quantitative trait loci mapping in a full-sib family
Statistical methods for mapping quantitative trait loci (QTLs) in full-sib forest trees, in which the number of alleles and linkage phase can vary from locus to locus, are still not well established. Previous studies assumed that the QTL segregation pattern was fixed throughout the genome in a full-sib family, despite the fact that this pattern can vary amon
Genetics and Molecular Biology. Publicado em: 13/07/2012