BIOMASS, PRODUCTIVITY AND ENERGY USE EFFICIENCY OF CLIMAX VEGETATION ON DINGHU MOUNTAINS, GUANGDONG, CHINA

The biomass, primary productivity and energy use efficiency of photosy sthetically active radiation of climax vegetation on Dinghu Mountains, in low subtropical were studied with the tree-harvested; litter gathe r, CO2 analysis methods, etc. The results show that the leaf area inde x of the community is 17; biomass, 363 t . (hm(2))(-1) . a(-1); total productivity, 132 t . (hm(2))(-1) . a(-1); primary productivity, 23.2 t . (hm(2))(-1) . a(-1); litter-fall, 9.2 t . (hm(2))(-1) . a(-1); dea th tree, 3.9 t . (hm(2))(-1) . a(-1); animal-eating, 0.6 t . (hm(2))(- 1) . a(-1); net productivity, 9.5 t . (hm(2))(-1) . a(-1).