摘要
通过对甜槠群落几个主要种群甜槠、深山含笑、木荷、赤楠分布格局的研究,探讨常绿阔叶林在受到人为干扰后的种群变化动态。结果表明,当群落受不同程度外界扰动后,各种群分布格局呈不同的变化趋势。人为干扰强度越大,甜槠、深山含笑的聚集性越强,而木荷、赤楠的聚集性则下降。在低立木级上,轻度干扰更有利于形成种群的集群分布特征;在中间立木级上,随立木级的增大,种子萌发和萌条能力强的树种分布格局趋势是以重度干扰群落中的聚集性更强;在高立木级上,各种群的分布格局均呈随机分布。
The dynamic state of population of evergreen broadleaf trees were investigated after human disturbance by studying the spatial distribution patterns of several main populations （ Castanopsis eyrei, Syzygium buxifolium, Schima superba, Michelia maudiae） in castanopsis eyrei communities. After the communities are disturbed in different levels, the distribution of populations presents various change trends. The heavier human-caused disturbances, the more obvious aggregate nature of Castanopsis eyrei, Michelia maudiae and the less obvious aggregate nature of Syzygium buxifolium, Schima superba. On the low stand classes of trees, slight human-eaused disturbance benefits the formation of aggregate distribution characteristics. On the middle stand classes of trees, the aggregate nature of trees, whose seeds, roots and branches have strong sprouting power,is more obvious in the intense human-caused disturbance. On the high stand classes of trees, the distribution pattern of population shows a random distribution.
出处
《中国生态农业学报》
CAS
CSCD
2007年第1期9-11,共3页
Chinese Journal of Eco-Agriculture
基金
福建省科委重大项目(20002S003)
福建农林大学森林培育重点学科项目(0608506-1)资助
关键词
人为干扰
常绿阔叶林
种群分布格局
Human-caused disturbance, Evergreen broadleaf trees, Population distribution pattern
