明溪县闽楠群落分布特征研究

Forest Characteristic of Phoebe bournei in Mingxi County

[目的]促进闽楠种质资源地保护与利用。[方法]对明溪县6个闽楠分布点进行群落学调查,包括环境因子和群落结构。[结果]闽楠分布点的土壤有黄壤、红壤2种,pH在5.0左右,土壤含水率较高,为25%~35%,群落郁闭度为7~9,盖度为90%~95%。闽楠群落物种组成复杂,通常由闽楠+杜英属植物+细柄阿丁枫等植物构成,闽楠占据群落主体,重要值约70%,杜英属植物约15%,细柄阿丁枫约5%,其余植物通常不超过5%。[结论]结合闽楠研究现状,认为闽楠人工林营造切实可行,但营造技术较复杂,应在造林地选择、造林密度、人工抚育等方面做出科学合理的规划。

[ Objective ] To promote the prevention and development of Phoebe bournei. [ Method ] The community survey on 6 Phoebe bournei com- munity were conducted,including environmental factors and community structure. [ Result ] The results showed that soil type was yellow soil or red soil, pH value at 5.0 ,water content was about 25% -35% ,crown cover rate was 7 -9 ,coverage was 90% -95%. The composition was made of complicated structure which commonly construct of Phoebe bournei ＋ Elaeocarpus genus ＋ Altingia gracilipes etc and P. bournei took the majority part of the community in a important value with about 70%, 15 % for Elaeocarpus genus species,5% for Altingia gracilipes,others don＇t over 5%. [ Conclusion ] Combining the current study of Phoebe bournei, the paper support manual cultivation of Phoebe bournei forest was reasonable but need more hard word. Before the afforest,many factors including forest site,density, management, et al, should be scientific and reasonable taken into account.