The Biomass and Water-Holding Capacities of Some Forest Communities of Baiyunshan Scenic Spot,Guangzhou

A preliminary study on the biomass,forest litter remnant amounts and water holding capaities of five forest communities of the Baiyunshan Scenic Spot,Guangzhou showed that the order of community biomass was Acacia mangium Schima superba>Pinus massoniana>Acacia mangium>Castanopsis fissa>Pinus caribaea and that the order of litter remnant amounts was Pinus massoniana>Castanopsis fissa>Acacia mangium Schima superba>Acacia mangium>Pinus caribaea . Differences in natural water holding capacities of the different strata of the communities were remarkable and the capacity order was soil stratum>tree stratum>shrub herb stratum>litter stratum,with the exception of Pinus massoniana where shrub herb stratum>tree stratum. The community of Acacia mangium Schima superba had the highest total natural water holding capacity,followed by Acacia mangium,Pinus massoniana,Pinus caribaea and Castanopsis fissa in a decreasing sequence.