A5074132845- Plant Water Relations and Carbon Dynamics
- Environmental and biological studies
- Geography and Environmental Studies
- Urban Heat Island Mitigation
- Remote Sensing in Agriculture
- Solar Radiation and Photovoltaics
- Forest ecology and management
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Urban Arborization and Environmental Studies
- Soil Management and Crop Yield
- Soil Carbon and Nitrogen Dynamics
- Hydrology and Watershed Management Studies
- Leaf Properties and Growth Measurement
- Plant responses to elevated CO2
- Soil erosion and sediment transport
- Atmospheric aerosols and clouds
- Urban Green Space and Health
- Soil and Unsaturated Flow
- Agricultural and Food Sciences
- Conducting polymers and applications
- Noise Effects and Management
- Remote Sensing and LiDAR Applications
- Electrochemical sensors and biosensors
- Climate variability and models
Universidade Federal de Mato Grosso
2015-2024
University of Rio Grande and Rio Grande Community College
2021
Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso
2020
Universidade de São Paulo
1992-2018
Instituto de Implantologia
2018
Universidade Federal de São Carlos
1996-2015
Continental (United States)
2014
Instituto de Psicologia Comportamental de São Carlos
1997-2002
Fundação Oswaldo Cruz
2001-2002
Universidade Federal de Mato Grosso do Sul
2002
We investigated the seasonal patterns of water vapor and sensible heat flux along a tropical biome gradient from forest to savanna. analyzed data network towers in Brazil that were operated within Large‐Scale Biosphere‐Atmosphere Experiment Amazonia (LBA). These tower sites included humid semideciduous forest, transitional floodplain (with physiognomies cerrado), cerrado sensu stricto. The mean annual at all ranged 20 38 Wm −2 , was generally reduced wet season increased late dry season,...
[1] Tropical savanna (locally known as cerrado) composes 24% of Brazil and is characterized by high climatic variation; however, patterns energy exchange are poorly understood, especially for mixed grasslands campo sujo). We used eddy covariance to measure latent (Le) sensible (H) heat flux a grassland linked meteorological remote sensing data determine the controls on these fluxes. hypothesized that (1) seasonal variations in H Le would be large due precipitation; (2) ecosystem phenology,...
The seasonal pattern of evapotranspiration (expressed as latent heat flux Q e ) for a 28‐ to 30‐m‐tall tropical transitional (ecotonal) forest was quantified over an annual cycle using eddy covariance measurement and micrometeorological estimation techniques. study conducted near the city Sinop, in northern Mato Grosso, Brazil, which is located within ecotone rain savanna (cerrado). Although majority net radiation ( *) consumed by (50–90%), variations were large positively correlated with...
Deforestation and climate change have the capacity to alter rainfall regimes, water availability, surface‐atmosphere flux of energy tropical forests, especially in ecotonal, semi‐deciduous forests southern Amazon Basin, which experienced rapid regional warming deforestation over last three decades. To reduce uncertainty regarding current future flux, micrometeorological measurements latent ( Q e ) sensible heat h canopy conductance G c were combined with sap density F d maximum leaf g smax...
Abstract Wetlands are important sources of methane (CH 4 ) and sinks carbon dioxide (CO 2 ). However, little is known about CH CO fluxes dynamics seasonally flooded tropical forests South America in relation to local (C) balances atmospheric exchange. We measured net ecosystem the Pantanal over 2014–2017 using tower‐based eddy covariance along with C measurements soil, biomass water. Our data indicate that potentially large for but strong , particularly during inundation when reducing...
Abstract Many remote sensing‐based evapotranspiration (RSBET) algorithms have been proposed in the past decades and evaluated using flux tower data, mainly over North America Europe. Model evaluation across South has done locally or only a single algorithm at time. Here, we provide first of multiple RSBET models, daily scale, wide variety biomes, climate zones, land uses America. We used meteorological data from 25 towers to force four models: Priestley–Taylor Jet Propulsion Laboratory...
Abstract This research utilized tower‐based eddy covariance to quantify the trends in net ecosystem mass (CO 2 and H O vapor) energy exchange of important land‐cover types NW Mato Grosso during March–December 2002 seasonal transition. Measurements were made a mature transitional (ecotonal) tropical forest near Sinop, Grosso, cattle pasture Cotriguaçú, located 500 km WNW Sinop. Pasture CO (NEE) was considerably more variable than NEE over transition, had significantly higher rates maximum...
This study analyzed how seasonal and interannual variations in climate alter litter dynamics, including production, decomposition, accumulation. Monthly measurements of leaf, stem, reproductive (flower plus fruit) the forest floor mass were combined with a balance model to determine rates decomposition for semideciduous tropical located rain forest‐savanna ecotone southern Amazon Basin 2001–2007. Annual production varied between 8 10.5 Mg ha −1 , leaf accounted majority (∼70%) total...
Summary Tower‐based eddy covariance and measurements of the vertical CO 2 concentration gradient within canopy were used to quantify seasonal variations in net ecosystem exchange (NEE) a 28–30 m tall transitional tropical forest (cerradão). The study was conducted near city Sinop, Mato Grosso, Brazil (11°24·75′ S; 55°19·50′ W), which is located ecotone two major regional types South America (tropical rainforest savanna). NEE during dry season (August–September) balance, but transition period...
Brazilian savanna (cerrado) is composed of vegetation and soil types that are spatially variable, links between cerrado physiognomy properties poorly understood. To reduce this uncertainty, we measured the plant community structure within located near Cuiaba, Mato Grosso, Brazil, varied in physical chemical properties. We hypothesized composition, including tree density, leaf area index (LAI), grass cover, species diversity would be highly correlated with C content fertility. Our results...
The Amazon region is an excellent laboratory for analysis of natural aerosols in the wet season; however, dry season biomass burning emissions highly influence it, which considerably alters physical and chemical properties atmosphere. We analyzed long-term time series (2000–2017) optical radiative during rain seasons from nine AERONET stations located Basin (Western Brazil). Aerosols have been classified into two groups: organic carbon (OC) elemental (EC), allowed quantification their...
O presente trabalho teve como objetivo verificar a variação da produção de serrapilheira diferentes biomas: Cerrado (com as fitofisionomias sensu stricto e Cerradão) Floresta Transição Amazônia-Cerrado, em clima tropical. Para determinação foram utilizados coletores tela náilon. Dados micrometereológicos coletados nas áreas estudo. A nos dois biomas mostrou acentuada sazonalidade, com maiores produções ocorrendo durante estação seca menor chuvosa. maior ocorreu na Transição, seguida do bioma...
Measurements of soil CO 2 efflux, litter production, and the surface pool biomass were made over a 1 year period in tropical transitional forest near Sinop, Mato Grosso, Brazil with aim quantifying seasonal variation respiration decomposition annual contribution to efflux. Average efflux (±95% confidence interval (CI)) was 7.91 ± 1.16 g C m −2 d −1 . Soil highest during November–February wet season (9.15 0.90 ) lowest May–September dry (6.19 1.40 ), 60% explained by variations temperature...
The Pantanal is the largest wetland in world with extremely high plant and animal diversity, but large areas have been invaded by Vochysia divergens Pohl (Vochysiaceae), a tree that native to Amazon Basin, Curatella americana L. (Dilleniaceae), Brazilian savanna (cerrado). V. reportedly floodadapted, thus its ability invade may not be surprising, invasion of C. counterintuitive, because this species adapted well-drained soils cerrado. Thus, we were interested comparing photosynthetic...
Abstract The savanna vegetation of Brazil (Cerrado) accounts for 20–25% the land cover and is second largest ecosystem following Amazonian forest; however, Cerrado mass energy exchange still highly uncertain. We used eddy covariance to measure net CO 2 (NEE) grass‐dominated ( campo sujo ) over 3 years. hypothesized that soil water availability would be a key control seasonal interannual variations in NEE. Multiple regression indicated gross primary production (GPP) was positively correlated...
Gross primary production (GPP) is the total amount of fixed carbon and depends on vegetation health water energy availability. GPP has been monitored worldwide by flux towers models that are coupled with remotely sensed data, such as Moderate Resolution Imaging Spectroradiometer (MODIS). However, have not evaluated for tropical savanna, which presumably represent a challenge because large spatial seasonal variation in GPP. Thus, our goal was to evaluate Vegetation Photosynthesis Model (VPM),...
La Enfermedad Aterosclerótica (EA) o aterosclerosis es un proceso inmunoinflamatorio crónico caracterizado por el depósito de grasa, calcio y otros elementos principalmente en la pared arterias medianas grandes calibres, reduciendo su luz provocando déficit sanguíneo los tejidos irrigados ellas. Para tratamiento clínico se desarrolló terapia con fármacos que actúan estabilizando placa aterosclerótica dentro las arterias, destacando uso estatinas, todos acción hipolipemiante, son más...