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

J.A. Parrotta; D.J. Lodge

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

Formally Refereed

Authors:

J.A. Parrotta, D.J. Lodge

Year:

1991

Type:

Scientific Journal

Station:

International Institute of Tropical Forestry

Source:

Biotropica

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Abstract

Fine root dynamics were evaluated at four sites in a subtropical wet forest in PuertoRico over a period of 13 months followindisturbance by Hurricane Hugo in September 1989. Live fine root standing stocks(to a depth of 10cm) declined to zero over a three month period after the hurricanand fluctuated greatly thereafter. Maximum fine root biomass (49 g/m2) occurred in June 1990. Dead root standing s ocks( mean 423 g/m2) 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 factor such as precipitation.

Citation

Parrotta, J.A.; Lodge, D.J. 1991. Fine Root Dynamics in a Subtropical Wet Forest Following Hurricane Disturbance in Puerto Rico. Biotropica. 23(4a): 343-347.