Floristic relationships of terra firme forests in the Brazilian Amazon
作者： Alexandre Adalardo de Oliveira , Bruce Walker Nelson
DOI: 10.1016/S0378-1127(00)00458-8
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摘要: Abstract Multivariate analyses of floristic composition at the genus level were performed on a set 31 tree inventories from 12 sites in Brazilian Amazon, one site Bolivian and northeast Atlantic coastal forest. All plots are terra firme forests clay or loam soil. Rainfall ranges 1600 to 2600 mm/year. Floristic dissimilarity between was associated with three factors: (1) physiognomic type, distinct separation evergreen ‘dense’ more seasonal ‘open’ forests; (2) geographic distance (3) past disturbance. Among dense forest those central Amazonia floristically intermediate western eastern regions, strengthening hypothesis that is an area phytogeographical confluence. Based this work physiognomy have been suggested policy-makers as unbiased indicators these proxies now being used define priority conservation areas for Amazon.
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