浙江龙王山和九龙山鹅掌揪群落研究

研究了浙江省安吉龙王山和遂昌九龙山的鹅掌楸群落。在龙王山,鹅掌楸-青钱柳-千金榆群落的空间结构分为乔木层和灌木层两层。鹅掌楸的重要值达36.0%,列各树种之冠。该群落的多样性指数(D)为3.0232,生态优势度(C)为0.156，物种均匀度(J)为40.11%,群落均匀度(Js)为79.29%，群落相时较稳定。在九龙山，鹅掌楸-多脉青冈-连蕊茶群落的空间结构分为上层乔木、中层乔木和灌木层3层。鹅掌楸的重要位为16.5%,列乔木树种第3位。该群落相应的数量指标分别是:D为3.0976，C为0.128，J为26.79%,Js为75.67%,群落相时较不稳定。最后讨论了鹅掌楸林和该树种种质资源的保护和利用问题。

On the Liriodendron chinense Communities in Mt.Longwang and Mt.Jiulong of Zhejiang.

Two conununities of Liriodendron chinense in Mt.Longwang and Mt. Jiulong,Zhejiang,are included in this study.In Mt.Longwang,L.chinense- Cycolocarys paliurus-Carpinus cordata var.chinensis community is spatially composed of two storeys,i.e.canpy-and under-storey.The important value of L.chinens.reaches 36.0%and is the highest among tree species.The testing- values of several ecological traits are listed as follows:diversity indexes(D) 3.0232,ecological dominance(C)0.156,species evenness(J)40.11% and conununity evenness(15)79.29%.These indicate that the community is relatively stable.In Mt.Jiulong,L.chinense-Cycolobalanopsis multinervis-Camellia fraternacommunity is spatially composed of three storeys,i.e.canopy-,subcanopy- and under-storey.The important value of L.chinense 16.5%,and is the third among tree species.The results of ecological traits are as follows:D=3.0976, C==0.128,J=26.7%and Js=75.67%,which indicate that the community is relatively dynamical.The conservation and utilization on L.chinense forests and the germplasma is discussed.