2017
DOI: 10.5902/1980509827757
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Estrutura Arbórea E Sazonalidade Da Cobertura Do Dossel Em Vegetação Florestada E Aberta No Parque Nacional Serra De Itabaiana, Sergipe, Brasil

Abstract: RESUMOAs florestas de areias brancas quartzosas constituem um tipo de ecossistema oligotrófico, cujos caracteres fitofisionômicos são afetados pela sazonalidade climática. Entre tais características está a abertura do dossel, cujas variações influenciam na distribuição espacial da luz solar no ambiente. Este estudo avaliou e comparou a estrutura da vegetação e as alterações sazonais do dossel em habitat de areias brancas do Parque Nacional Serra de Itabaiana, Sergipe. Os dados foram coletados em dois ambientes… Show more

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Cited by 5 publications
(5 citation statements)
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“…Climatic variation throughout the day influences the ecophysiological performance of plants in the different growth stages and phases, mainly air temperature, relative humidity, and irradiance (luminosity), the main abiotic factors that affect plant metabolism [10]. Arboreal forest species, obtained from natural regeneration or seedlings, are more sensitive to climatic variations due to their intrinsic characteristics [11]. Climatic variation can affect the physiological processes of the plants, changing photosynthesis rate and chlorophyll a fluorescence [12].…”
Section: Introductionmentioning
confidence: 99%
“…Climatic variation throughout the day influences the ecophysiological performance of plants in the different growth stages and phases, mainly air temperature, relative humidity, and irradiance (luminosity), the main abiotic factors that affect plant metabolism [10]. Arboreal forest species, obtained from natural regeneration or seedlings, are more sensitive to climatic variations due to their intrinsic characteristics [11]. Climatic variation can affect the physiological processes of the plants, changing photosynthesis rate and chlorophyll a fluorescence [12].…”
Section: Introductionmentioning
confidence: 99%
“…The smartphone was fixed to a tripod 1 m above ground, at level, with a north orientation (Figure S3). Images were recorded in the same places and on the days as the PAR measurements, but in the early morning and late afternoon to avoid sun and wind interferences [47,48]. Canopy images were analyzed using the Gap Light Analyzer 2.0 program [49].…”
Section: Species Familymentioning
confidence: 99%
“…This park covers a total area of 7966 ha and comprises three units: Cajueiro, Comprida and finally the Itabaiana mountain range, which is the largest. Its geographic coordinates are between latitudes and approximate longitudes of 10° 40' S and 37° 25' W. The vegetation between the mouth of the Sergipe river and the northwest towards the three hills is composed of a narrow strip of open areas of the coastal restingas parallel to the coast, and fragmented forest remnants that cover the hills in the shape of an orange half, being characteristic of the morphoclimatic Atlantic forest domain (Dias et al, 2017).…”
Section: Description Of the Study Areamentioning
confidence: 99%