A preliminary research on different community carbon-sink function in Zhujiang river

The community of wasteland, secondly shrub, Pinus yunnanensis forest, Alnus nepalensis forest, mature Pinus armandii forest, half-Mature Pinus armandii forest and mixed forest were selected to analyze the carbon-sink function by establishing recursive trees regression biomass model with different components contain the biomass of forest, stick defoliation reserves and soil carbon. It is indicated through the results that a unit soil carbon storage forms the highest proportion of the community total carbon storage, also, vegetation resume is propitious to the carbon-sink function and follow the order of Mature Pinus armandii forest>;Secondly shrub>;Mixed forest>;Pinus yunnanensis forest>;Half-Mature Pinus armandii forest>;Alnus nepalensis froest>;Wasteland.