Study on Carbon Storage and Carbon Density of Camellia oleifera Plantation in Karst Area of Central Guangxi
[Objective]The aim was to study the characteristics of carbon storage and carbon density of Camellia oleifera plantations of different forest ages in the karst region of central Guangxi,and provide scientific reference for further exploring and utilizing the carbon sink function of C.oleifera tree species in Guangxi.[Method]Taking C.oleifera plantations of different ages in Guangxi as the research object,the carbon content and carbon storage ratio of tree layer,litter layer,shrub layer and herb layer in different stands were compared using a spatial instead of temporal approach to study their distribution rules.[Result]There were significant differences in the carbon content of each component in the tree layer of C.oleifera forests of different ages.The carbon content in the tree layer of the 6-year-old(young forest),12-year-old(middle forest),and 20-year-old(mature forest)C.oleifera forests was 20.77,32.67,and 56.29 g/kg,respectively.The carbon content of each component of the tree layer increases with the increase of forest age.The carbon density in the trunk of the tree layer of the 20-year-old C.oleifera forest reached 38.08 t/hm2.The average carbon content in the lower layer of the 6-year-old,12-year-old,and 20-year-old C.oleifera forest is 8.45,9.95,and 15.84 g/kg,respectively.The total carbon storage of 6-year-old,12-year-old,and 20-year-old C.oleifera stands was 8.49,27.30,and 54.84 t/hm2,respectively.[Conclusion]The carbon content and carbon density of the tree layer were the highest at different forest age stages.In different forest age stands,the total carbon storage and tree layer carbon storage increased with the increase of forest age,and the tree layer carbon storage was the main part of the carbon storage of C.oleifera forest.Its carbon storage accounted for over 45%of the total carbon storage.
万方数据
维普
