ELVIRA CUEVAS 1., SANDRA BROWN e and ARIEL E. LUGO 1. 1 Institute of Tropical Forestry, USDA Forest Service, Southern Forest Experiment Station, Call ...
Plant and Soil 135: 257-268, 1991. © 1991 KluwerAcademic Publishers. Printed in the Netherlands.
PLSO 8762
Above- and belowground organic matter storage and production in a tropical pine plantation and a paired broadleaf secondary forest ELVIRA CUEVAS 1., SANDRA BROWN e and ARIEL E. LUGO 1 1 Institute of Tropical Forestry, USDA Forest Service, Southern Forest Experiment Station, Call Box 25000 Rio Piedras, PR 00928-2500 and 2 Department of Forestry, University of Illinois, 110 Mumford Hall, 1301 W. Gregory, IL 61801, USA. *Current address and address for reprint requests: Centro de Ecologia, Instituto Venezolano de lnvestigaciones Cientificas, Aptdo. 21827, Caracas 1020-A, Venezuela Received 6 June 1990. Revised February1991
Key words: biomass, litter fall, litter standing stock, organic matter budget, Pinus caribaea plantations, root biomass, root production, secondary forests, soil organic matter Abstract
The distribution of tree biomass and the allocation of organic matter production were measured in an ll-yr-old Pinus caribaea plantation and a paired broadleaf secondary forest growing under the same climatic conditions. The pine plantation had significantly more mass aboveground than the secondary forest (94.9 vs 35.6 t ha -1 for biomass and 10.5 vs 5.0 t ha -1 for litter), whereas the secondary forest had significantly more fine roots (~
