Changes in the floristic composition of a Terra Firme rain forest In Brazilian Amazonia over an eight-year period In response to logging

Acta Amazonica

João Olegário Pereira De Carvalho¹ 

关键词: Amazonian forest;    floristic composition;    forest dynamics;    logging;    Tapajós Forest;    Floresta amazônica;    composição florística;    dinâmica da floresta;    exploração florestal;    Floresta do Tapajós;   

DOI  :  10.1590/1809-43922002322291

来源: SciELO

【 摘 要 】

Changes in the floristic composition over an eight-year period in a logged area at the Tapajós National Forest in Brazilian Amazonia arc discussed. Two treatments of different intensities of logging were compared with an undisturbed (control) forest. Data were collected from permanent sample-plots. The effects of logging on floristic composition were stronger in the more heavily logged treatment. The number of species decreased immediately after logging, but started to increase before the fifth year after logging and was higher at the end of the study period than before logging. The more heavily logged plots responded more to disturbances, as judged by the increase in the number of species during the period after logging. This forest appears to recover its initial floristic composition after disturbance without intervention.

【 授权许可】

CC BY   
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