Fine Root Dynamics in a Subtropical Wet Forest Following Hurricane Disturbance in Puerto Rico

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Abstract
Fine root dynamics were evaluated at four sites in a subtropical wet forest in Puerto Rico over a period of 13 months following disturbance by Hurricane Hugo in September 1989 Live fine root standing stocks (to a depth of 10 cm) declined to zero over a three month period after the hurricane and fluctuated greatly thereafter. Maximum fine root biomass (49 g/m$^2$) occurred in June 1990. Dead root standing stocks (mean 423 g/m$^2$) were relatively constant through the study period. Recovery of fine roots following the initial hurricane-related mortality appears to be a slow process, regulated at least initially by environmental factors such as precipitation.

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