Biomass and net primary productivity of three plantation communities in hilly land of lower subtropical China
Biomass and net primary productivity of three plantation communities in hilly land of lower subtropical China
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发表时间：
2008
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通讯作者：
Zeng Xiao-pin
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作者：
Zeng Xiao-pin
本文以马占相思种植园、针叶种植园人工林的生物量和净初级生产力为研究对象，（马尾松+杉木）和木荷种植园（木荷+瓦氏木荷）（广东鹤山，中国）的通过样木法和收获法对鹤山市3个典型种植园群落的结构和功能进行了研究，马占相思人工林、木荷人工林和针叶种植园的生物量和净初级生产力分别为176.03 t/hm 2和25.32 t/（hm 2·yr）、122.91 t/hm 2和17.93 t/（hm 2·yr）、104.93 t/hm 2和15.8 t/（hm 2·yr）。乔木层生物量占总生物量的比例最大（95.1%-98.7%），灌木层和草本层仅占总生物量的一小部分（（0.9%--）4.5%和0.4%，）木荷人工种植园乔木层和灌木层生物量增长所占比例高于其他两种人工林，说明木荷种植园结构复杂，生物量积累呈明显的增长趋势。
In this paper,the biomass and net primary productivity(NPP) of Acacia mangium plantation,coniferous plantation(Pinus massoniana+Cunninghamia lanceolata) and Schima plantation(S.superba+S.wallichi) in lower subtropical hilly land(Heshan Mountain,Guangdong,China) were estimated by means of sample tree method and harvest method.Present investigation aims at providing the basic data on the structure and function of three typical plantation communities in Heshan and global change ecology.The biomass and NPP were 176.03 t/hm~2 and 25.32 t/(hm~2·yr) for Acacia mangium plantation,122.91 t/hm~2 and 17.93 t/(hm~2·yr) for Schima plantation,and 104.93 t/hm~2 and 15.8 t/(hm~2·yr) for coniferous plantation,respectively.Arbor layer of the three plantation communities accounted for the greatest proportion of the total biomass ((95.1%——)98.7%),while shrub and herb layers formed only a small part of the total biomass((0.9%——)4.5% and 0.4%,respectively).Arbor and shrub layers in Schima plantation had higher proportion of biomass increment than those in the other two plantations.The results suggest that Schima plantation has a complex structure and an evident increase trend in biomass accumulation.