摘要
五角枫是多用途、多效益的优良经济树种,具有涵养水源、保持水土的生态效益。根据典型样地的调查资料,对安徽省合肥市大蜀山五角枫群落的物种组成、生活型特征、层次结构及物种多样性进行了研究。结果表明:群落内共出现维管束植物32科、56属、62种,乔木层树种有1 9种,优势种显著,优势种重要值按百分率的大小排序为五角枫(37%)>麻栎(12.13%)>朴树(7.35%)>马尾松(6.48%)>刺槐及其它树种(5.79%);群落区系地理成分主要由热带成分(47.83%)和温带成分(43.48%)组成;群落生活型以中高位芽和矮高位芽植物为主,不同生活型植物的物种多样性指数表现出灌木层>草本层>乔木层的规律;五角枫幼龄树的数量较少,自然更新较弱,正处于成熟阶段。
Acer mono is a good economic tree species with multi-purpose and multi- effectiveness, and has ecological benefits of water and soil and conservation. Based on the field investigation from the typical sample plots of Acer mono community in Dashu Mountain, the floristic composition, life-form, structure characteristics and species biodiversity were analyzed. The results revealed that 32 families, 56 genera, 62 species were recorded in the community and 19 species in the tree layer, the percentage of importance values of the main species was as follows ： Acer mono （37 %）, Quereus aeutissima （12.13 % ）, Celtis sinensis （7. 35%）, Pinus massoniana（6.48%）, Robinia pseucdoacacia（5. 79%）. The analysis of floristic geographical elements indicated that the tropical elements （47.83%） and temperate affinities （43.48%） are mainly part in the community. The deciduous broad-leaved was characterized by deciduous mesophanerophytes and nanophanerophytes, the species diversity of the community was in the order： shrub layer, herb layer, arbor layer. Aeer mono was in the maturing stage and in the short of natural regeneration.
出处
《经济林研究》
2009年第4期41-45,共5页
Non-wood Forest Research
基金
合肥植物园科技创新项目"合肥市天然次生林近自然经营基础研究"(2008015)
