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	Provedor de dados Acta Amazonica (1) Autor ARMBRÜSTER,Nicole (1) JUNK,Wolfgang J. (1) PAROLIN,Pia (1) Palavra-chave Amazonia (1) Floodplain (1) Growth strategy (1) Leaf nitrogen (1) Várzea (1) Waterlogging (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Ano 2002 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Seasonal changes of leaf Nitrogen content in trees of Amazonian floodplains Acta Amazonica PAROLIN,Pia; ARMBRÜSTER,Nicole; JUNK,Wolfgang J.. In Amazonian floodplains the trees are exposed to extreme flooding of up to 230 days a year. Waterlogging of the roots and stems affects growth and metabolic activity of the trees. An increased leaf fall in the aquatic period and annual increment rings in the wood indicate periodical growth reductions. The present study aims at documenting seasonal changes of metabolism and vitality of adult trees in the annual cycle as expressed by changes of leaf nitrogen content. Leaves of six tree species common in floodplains in Central Amazonia and typical representants of different growth strategies were collected every month between May 1994 and June 1995 in the vicinity of Manaus, Brazil. Mean leaf nitrogen content varied between 1.3% and 3.2% in the non-flooded... Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf nitrogen; Growth strategy; Waterlogging; Várzea; Floodplain; Amazonia. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672002000200231 Registros recuperados: 1 Primeira ... 1 ... Última

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