Search Results - "Ricardo Santos Silva Amorim"
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A multi-approach and multi-scale study on water quantity and quality changes in the Tapajós River basin, Amazon
Published in Proceedings of the International Association of Hydrological Sciences (01-01-2018)“…We analyzed changes in water quantity and quality at different spatial scales within the Tapajós River basin (Amazon) based on experimental fieldwork,…”
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Sand fractions micromorphometry detected by Vis‐NIR‐MIR and its impact on water retention
Published in European journal of soil science (01-03-2022)“…The expansion of agricultural frontiers has increased the use of sandy soils as cropping areas; however, the water‐retention capacity (WRC) of the soil is a…”
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Characterizing and Modeling Tropical Sandy Soils through VisNIR-SWIR, MIR Spectroscopy, and X-ray Fluorescence
Published in Remote sensing (Basel, Switzerland) (01-10-2022)“…Despite occupying a large area of the globe and being the next agricultural frontier, sandy soils are seldom explored in scientific studies. Considering the…”
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Pedotransfer functions for predicting soil-water retention under Brazilian Cerrado
Published in Pesquisa agropecuaria brasileira (01-01-2022)“…Abstract The objective of this work was to determine pedotransfer functions to predict water retention at the -33 and -1500 kPa matric potentials of soils…”
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Tara (Caesalpinia spinosa) in Natural and Agroforestry Systems under an Altitudinal Gradient in the Peruvian Andes: Responses to Soil and Climate Variation
Published in Agronomy (Basel) (01-01-2023)“…This research examined how edaphoclimatic variations are related to dendrometric variables of the Tara tree in natural and agroforestry systems in Cajamarca,…”
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Carbon-optimised land management strategies for southern Amazonia
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The effects of resource availability on sprouting: a key trait influencing the population dynamics of a tree species
Published in Trees (Berlin, West) (01-10-2015)“…Key message Sprouting is a key component of the population dynamics of woody species. Regeneration via sprouting contributes substantially to population growth…”
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Agroclimatic zoning of the Brazilian state of Mato Grosso for the production of soybean seeds of early cultivars
Published in Journal of seed science (01-04-2019)“…The objective of this work was to carry out the agroclimatic zoning of the Brazilian state of Mato Grosso, in order to identify the regions with the best…”
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Spatial heterogeneity of soils of the Cerrado-Pantanal ecotone
Published in Ciência agronômica (01-12-2014)“…In areas of the Cerrado-Pantanal ecotone in Brazil, the soil displays features which are inherent to the processes of soil formation, both of the Central…”
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Analysis of Flow Behavior as Influenced by Reservoir with Flow Regularization
Published in Water resources management (01-09-2022)“…Understanding the behavior of reservoirs with flow regularization formed by hydroelectric power plants is essential for assessing water availability. The…”
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Modeling of surface sediment concentration in the Doce River basin using satellite remote sensing
Published in Journal of environmental management (01-12-2022)“…Surface sediment concentration (SSC) is linked to several problems related to water quality and its monitoring is costly because of the required fieldwork and…”
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Forecasting of daily streamflows downstream from reservoirs with streamflow regularization using machine learning methods
Published in Journal of South American earth sciences (01-10-2023)“…Streamflow gauge stations (SGS) can show inconsistent daily streamflow estimates, due to the number of readings taken by the rating-curve method, throughout…”
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13
Relative Radiometric Normalization for the PlanetScope Nanosatellite Constellation Based on Sentinel-2 Images
Published in Remote sensing (Basel, Switzerland) (01-11-2024)“…Detecting and characterizing continuous changes on Earth’s surface has become critical for planning and development. Since 2016, Planet Labs has launched…”
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The dynamics of phosphorus, potassium and sulphur in the arable layer of the soil as a function of fertilisation
Published in Ciência agronômica (2024)“…ABSTRACT The method of applying fertiliser to the soil affects grain productivity. The aim of this study was to determine the dynamics of phosphorus, potassium…”
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Development and Application of an Environmental Vulnerability Index (EVI) for Identifying Priority Restoration Areas in the São Francisco River Basin, Brazil
Published in Land (Basel) (01-09-2024)“…The environmental vulnerability diagnosis of a river basin depends on a holistic analysis of its environmental aspects and degradation factors. Based on this…”
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Dissolved organic carbon and nitrate flows in two micro-watersheds with different land uses
Published in Semina. Ciências agrárias : revista cultural e científica da Universidade Estadual de Londrina (01-03-2021)“…he impacts of human activities on watersheds can change the quality and possible uses of water resources. In this context, we evaluated the flows of dissolved…”
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Increased Production of Tara (Caesalpinia spinosa) by Edaphoclimatic Variation in the Altitudinal Gradient of the Peruvian Andes
Published in Agronomy (Basel) (01-03-2023)“…Tara production occurs mainly in the altitude gradient, where the edaphoclimatic conditions that affect the production of pods still need to be understood. The…”
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Productivity and nutritional value of elephant grass BRS Canará forage
Published in Semina. Ciências agrárias : revista cultural e científica da Universidade Estadual de Londrina (01-11-2019)“…The goal was to determine the ideal cutting age of elephant grass BRS Canará for forage production in the dry and rainy seasons. The experimental design…”
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Spatio-temporal variability of erosivity in Mato Grosso, Brazil
Published in Revista ambiente & água (2018)“…The impact of rainfall on surfaces lacking vegetal cover can dissociate soil particles, thereby initiating the erosion process. This is known as rainfall…”
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DINÂMICA DOS ATRIBUTOS FÍSICO-QUÍMICOS E VARIAÇÃO SAZONAL DOS ESTOQUES DE CARBONO NO SOLO EM DIFERENTES FITOFISIONOMIAS DO PANTANAL NORTE MATO-GROSSENSE
Published in Revista árvore (01-04-2015)“…O bioma Pantanal pode ser considerado um ambiente de hipersazonalidade, onde há um período de inundação pronunciada seguido por extenso período seco com…”
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