天目山米心水青冈群落物种组成特点与萌条更新  

Species composition and sprouting regeneration of Fagus engleriana community in Tianmushan Mountain

作　　者：于硕[1,2] 王嵘[1,2] 刘敏[1,2] 杨淑贞 罗远 陈小勇 

机构地区：[1]华东师范大学环境科学系,上海200062 [2]浙江天童森林生态系统国家野外观测研究站,上海200062 [3]浙江省西天目山国家自然保护区管理局,浙江临安311311

出　　处：《生态学杂志》2009年第2期182-187,共6页Chinese Journal of Ecology

基　　金：高等学校博士学科点专项科研基金项目(20060269018);教育部新世纪优秀人才计划项目(NCET-05-0431);浙江省临安市科技发展资助项目(2007-48)

摘　　要：由于特定的温湿需求,中国的水青冈多分布于亚热带山地,而分布于欧洲和北美的水青冈则为温带的优势种。本文对浙江天目山自然保护区内米心水青冈群落物种组成特点和更新进行了研究。结果表明:在3个30m×30m样方中共发现132种高等植物,分属于51科86属;种-面积关系符合Arrhenius模型,lgS=0.384lgA+0.6443;log-series模型能很好地模拟米心水青冈群落中乔木层种-多度关系(R2=0.9596);乔木层优势种为壳斗科的米心水青冈、短柄枹、锥栗等;灌木层优势种有伞形绣球、宜昌荚蒾等;草本层优势种为箬竹、苔草等;群落物种多样性较高,而灌木层和草本层物种多样性与乔木层多样性呈负相关;群落结构表明,天目山米心水青冈群落是稳定的顶极群落,萌条更新在米心水青冈群落中十分常见,55%的乔木层物种具有萌条现象;尤其是米心水青冈,萌条数与母株的胸径呈显著的正相关。Owing to the special requirements of humidity and temperature, Fagus engleriana in China mainly distributes in the mountains of subtropical areas, while its congeners distributed in Europe and North America are of the dominant species in temperate zones. In this paper, the species composition and sprout regeneration of F. engleriana community in Tianmushan Mountain National Nature Reserve were studied. In three 30 m × 30 m sampling quadrates, 132 higher plant species were found, belonging to 51 families and 86 genera. The species （S） -area （A） relationship accorded with Arrhenius model, and the species-abundance relationship in the tree layer of the community met log-series model well （R^2 = 0. 9596）. F. engleriaaa, Quercus serrata var. brevipetiolata, and Castanea henryi were the dominant species in tree layer, Hydrangea umbellate and Viburnum erosum were the dominant species in shrub layer, and Indocalamus tessellates and Carex tristachya were the dominant species in herb layer. Higher species diversity was found in the community, and the diversity in shrub and herb layers was negatively correlated with that in tree layer. The F. engleriana community in Tianmushan Mountain was of climax community. Sprout regeneration was very common in the community, and 55% of the species in tree layer had the ability of sprouting. Especially for F. engleriana, its sprout number had a significant positive correlation with the DBH of mother plants.

关 键 词：米心水青冈 种-面积关系 种-多度关系 物种多样性 萌条 天目山 

分 类 号：S792.99[农业科学—林木遗传育种]