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The effects of water availability on root growth and morphology in an Amazon rainforest

Metcalfe, Daniel; Meir, Patrick; Aragão, Luiz Eduardo O C; da Costa, Antonio Carlos Lola; Braga, Alan; Goncalves, Paulo; de Athaydes Silva Junior, Joao; de Almeida, Samuel S.; Dawson, Lorna A; Malhi, Yadvinder; Williams, Mathew


This study examined how root growth and morphology were affected by variation in soil moisture at four Amazon rainforest sites with contrasting vegetation and soil types. Mean annual site root mass, length and surface area growth ranged between 3-7 t ha-1, 2-4 km m-2 and 8-12 m2 m-2 respectively. Mean site specific root length and surface area varied between 8-10 km kg-1 and 24-34 m2 kg-1. Growth of root mass, length and surface area was lower when soil water was depleted (P<0.001) while...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Plant and Soil
DOI: 10.1007/s11104-008-9670-9


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