Now showing items 1-10 of 19
A multisensor, multitemporal approach for monitoring herbaceous vegetation growth in the Amazon floodplain
(Multitemp 2013: 7th International Workshop On The Analysis Of Multi-temporal Remote Sensing Images, 2013-01-01) [Trabalho apresentado em evento]
The Amazon River floodplain is an important source of atmospheric CO2 and CH4. Aquatic herbaceous vegetation (macrophytes) have been shown to contribute significantly to floodplain net primary productivity (NPP) and methane ...
Restoration challenges and opportunities for increasing landscape connectivity under the new Brazilian Forest Act
(Natureza & Conservacao, 2013-12-01) [Artigo]
The climatic rhythm and blooms of cyanobacteria in a tropical reservoir in São Paulo, Brazil
(Brazilian Journal of Biology, 2014-02-01) [Artigo]
The present study sought to develop a methodology to analyse water quality based on the concepts and methods of climate and climatology. Accordingly, we attempted to relate hydro- and limnometeorological techniques and ...
Avaliação da capacidade de uso da terra da bacia do córrego do cavalheiro - Analândia, SP
(Geociências, 2012-12-01) [Artigo]
Environmental factors are important in agriculture and need to be considered for getting good degree of development and reasonable efficiency, by reducing their operating costs. To this end, land use shall be appropriated ...
Land cover classification of Lago Grande de Curuai floodplain (Amazon, Brazil) using multi-sensor and image fusion techniques
(Acta Amazonica, 2015-06-01) [Artigo]
Given the limitations of different types of remote sensing images, automated land-cover classifications of the Amazon várzea may yield poor accuracy indexes. One way to improve accuracy is through the combination of images ...
Assessment of effective doses from radon levels for tour guides at several galleries of Santana Cave, Southern Brazil, with CR-39 detectors: preliminary results
(Radiation Protection Dosimetry, 2011-05-01) [Artigo]
Indoor radon concentrations have been measured in Santana cave, the most frequented cave of PETAR (High Ribeira River Tourist State Park), situated southern of São Paulo State, Brazil. The measurements were carried out ...
Depression severity levels and cognitive functions in institutionalized elderly patients
(Revista Brasileira de Medicina, 2006-08-01) [Artigo]
Depression is a highly prevalent illness among institutionalized aged and assumes peculiar characteristics such as the risk for progressing to dementia. The aims of this study was to assess the cognitive functions of ...
Combining ALOS/PALSAR derived vegetation structure and inundation patterns to characterize major vegetation types in the Mamiraua Sustainable Development Reserve, Central Amazon floodplain, Brazil
(Wetlands Ecology And Management, 2015-02-01) [Artigo]
Remote sensing studies of vegetation cover and hydrologic dynamics in Amazonian wetlands have been mostly limited temporally or spatially, and the distribution and spatial configuration of Amazonian varzea habitats remains ...
Effects of the flooding gradient on tree community diversity in varzea forests of the purus river, central Amazon, Brazil
(Biotropica, 2015-03-01) [Artigo]
Amazonian floodplain forests have remarkable variation in tree diversity and structure related to flood duration. We assessed how floodplain forests respond to the continuum flooding gradient and found that Fisher's values ...
A floristic survey of angiosperm species occurring at three landscapes of the Central Amazon várzea, Brazil
(Check List, 2015-11-10) [Artigo]
The Amazonian floodplains harbor highly diverse wetland forests, with angiosperms adapted to survive extreme floods and droughts. About 14% of the Amazon Basin is covered by floodplains, which are fundamental to river ...