Abstract: The biomass,carbon content,storage and distribution in Cinnamomum camphora plantation were studeied.The results showed that carbon content in different organs of C.camphora trees ranged from 42.12% to 55.42%,and decreased in the order of leaf > branch > root > bole > bark.In the canopy,the carbon content varied with layers.Carbon content in the leaves of upper and lower layer was lower than that in the leaves of the middle,and carbon content in the branch of the lowelayer was higher than that of the middle and the upper.The carbon content in shrub,herb and litter floor were 51.30%,48.90% and 40.89%,respectively.Carbon content in the soil was 1.25% and declined with soil depth.The total carbon storage in C.camphora plantation ecosystem amounted to 200.44?10³kg稢穐m^-2,of which overstorey of camphor trees stored 45.01?10³kg稢穐m^-2 and accounted for 22.45%,and soil within the depth from 0 to 1m stored 146.97?10³kg稢穐m^-2 and accounted for 73.32%.The carbon storage in different organs was positively related to the biomass of corresponding organs.Stem accumulated the highest carbon storage and comprised 40.06% of carbon storage in overstorey trees.Carbon storage decreased with the increase of height.However,carbon storage of C.camphora trees increased at the height from 8 to 10m.The annual net productivity of camphor trees was 9.55t穐m^-2穣r^-1 and annual carbon storage was up to 4.89?10³kg稢穐m^-2穣r^-1 .

Key words: Recirculated landfill leachate, Antioxidant system, Membrane lipid peroxidation, Cynodon dactylon, Irrigation