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Responses of two températe evergreen Nothofagus species to sudden and gradual waterlogging: relationships with distribution patterns RChHN
PIPER,FRIDA; ZÚÑIGA-FEEST,ALEJANDRA; ROJAS,PAULINA; ALBERDI,MIREN; CORCUERA,LUIS J; LUSK,CHRISTOPHER H.
The effects of gradual waterlogging on trees have been little studied. The températe evergreens Nothofagus nítida and N. dombeyi are differentially distributed on soil moisture gradients, only the former being common on poorly-drained sites. We compared the relative height growth rate (RGR H) and foliage loss of seedlings subjected experimentally to normal drainage (soil at field capacity), sudden waterlogging and gradual waterlogging for two months to determine which waterlogging regime more accurately predicts interspecific differences in tolerance, as evident from natural distributions. RGR H was similar between species but differed between treatments (normal watering > gradual waterlogging = sudden waterlogging). Sudden waterlogging caused massive...
Tipo: Journal article Palavras-chave: Nothofagus; Reciprocal transplants; Seedling growth; Températe rainforest.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000200008
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