Please use this identifier to cite or link to this item: http://repositorio.ufpa.br:8080/jspui/handle/2011/2278
Title: Precipitação efetiva e interceptação em Caxiuanã, na Amazônia Oriental
Other Titles: Net precipitation and interception in Caxiuanã, in the Eastern Amazonia
metadata.dc.creator: OLIVEIRA, Leidiane Leão de
COSTA, Rafael Ferreira da
SOUSA, Francisco de Assis Salviano de
COSTA, Antonio Carlos Lôla da
BRAGA, Alan Pantoja
Keywords: Floresta tropical
Interceptação
Precipitação interna
Escoamento pelo tronco
Rain interception
Stemflow
Throughfall
Tropical rainforest
Issue Date: Dec-2008
Publisher: Instituto Nacional de Pesquisas da Amazônia
Citation: OLIVEIRA, Leidiane Leão de et al. Precipitação efetiva e interceptação em Caxiuanã, na Amazônia Oriental. Acta Amazonica, Manaus, v. 38, n. 4, p. 723-732, dez. 2008. DOI: http://dx.doi.org/10.1590/S0044-59672008000400016. Disponível em: http://www.repositorio.ufpa.br/jspui/handle/2011/2278. Acesso em:.
Abstract: The present work was carried out at the Ferreira Penna Scientific Station, in the Caxiuanã National Forest, Melgaço, Pará, Brazil (01º 42" 30"S; 51º 31" 45"W; 60 m a.s.l.). The studied region is an upland forest with closed vegetation and a mean canopy height of 35 m although some trees can be 50 m high. The species density is between 450 and 550 plants per hectare. The aim was to quantify the net precipitation, throughfall, stemflow and rain interception by vegetation, from March to December of 2004. For the throughfall measurements 25 rain gauges were randomly distributed in an one hectare area subdivided in one hundred parcels of 10 x 10 m, while the stemflow was measured on seven trees with a stem diameter at breast height representative of the area. The results showed values of net precipitation of 905.4 mm, throughfall of 885.4 mm, stemflow 20 mm and rain interception of 248 mm,corresponding respectively to 78.5%, 76.8%, 1.7% e 21.5% of the total precipitation above the canopy which was 1,153.4 mm for the study period.
URI: http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2278
ISSN: 1809-4392
Appears in Collections:Artigos Científicos - FAMET/IG

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