The biomass and aboveground net primary productivity of Schima superba-Castanopsis carlesii forests in east China  

作　　者：YANG TongHui SONG Kun DA LiangJun LI XiuPeng WU JianPing 

机构地区：[1]School of Resources and Environment Science,East China Normal University,Shanghai 200062,China [2]Ningbo Academy of Agricultural Science,Ningbo 315040,China [3]Ningbo Technology Extension Center for Forestry and Specialty Forest Products,Ningbo 315012,China

出　　处：《Science China(Life Sciences)》2010年第7期811-821,共11页中国科学(生命科学英文版)

基　　金：supported by the National Key Basic Research and Development Program of China (Grant No. G2000046801);the National Natural Science Foundation of China (Grant No. 30130060 );the A3 Foresight Program Project (NSFC)

摘　　要：The biomass and productivity of Schima superba-Castanopsis carlesii forests in Tiantong,Zhejiang Province,were determined using overlapping quadrants and stem analyses.The total community biomass was(225.3±30.1) t hm-2,of which the aboveground parts accounted for 72.0% and the underground parts accounted for 28.0%.About 87.2% of biomass existed in the tree layer.The resprouting biomass was small,of which over 95.0% occurred in the shrub layer.The productivity of the aboveground parts of the community was(386.8±98.9) g m-2a-1,in which more than 96.0% was present at the tree level.The trunk's contribution to productivity was the greatest,while that of leaves was the smallest.In China,the community biomass of subtropical evergreen broadleaved forests differs significantly with the age of the forest.The community biomass of the 52-year-old S.superba-C.carlesii forests in this study was lower than the average biomass of subtropical evergreen broadleaved forests in China,and was lower than the biomass of other subtropical evergreen broadleaved forests elsewhere in the world.Moreover,its productivity was lower than the model estimate,indicating that without disturbance,this community has great developmental potential in terms of community biomass and productivity.The biomass and productivity of Schima superba-Castanopsis carlesii forests in Tiantong,Zhejiang Province,were determined using overlapping quadrants and stem analyses.The total community biomass was(225.3±30.1) t hm-2,of which the aboveground parts accounted for 72.0% and the underground parts accounted for 28.0%.About 87.2% of biomass existed in the tree layer.The resprouting biomass was small,of which over 95.0% occurred in the shrub layer.The productivity of the aboveground parts of the community was(386.8±98.9) g m-2a-1,in which more than 96.0% was present at the tree level.The trunk’s contribution to productivity was the greatest,while that of leaves was the smallest.In China,the community biomass of subtropical evergreen broadleaved forests differs significantly with the age of the forest.The community biomass of the 52-year-old S.superba-C.carlesii forests in this study was lower than the average biomass of subtropical evergreen broadleaved forests in China,and was lower than the biomass of other subtropical evergreen broadleaved forests elsewhere in the world.Moreover,its productivity was lower than the model estimate,indicating that without disturbance,this community has great developmental potential in terms of community biomass and productivity.

关 键 词：evergreen broadleaved forest community biomass net primary productivity distribution pattern Schima superba-Castanopsis carlesii community 

分 类 号：S718.5[农业科学—林学]