鼎湖山野生植物物种组成和功能性状特征

Species composition and functional traits of wild plants in Dinghu Mountain

为明确鼎湖山自然保护区野生植物资源种类及功能性状特征,2019—020年通过实地调研,网络数据库查询等方法,对鼎湖山自然保护区野生植物资源进行普查和整理分析,统计共有1229种,隶属于171个科,626个属,根据植被特征及地形地貌特点将物种分布生境归为5类:湿地、旷野草地、山谷林、山坡灌草丛,自然林,并分析其物种组成及功能性状特征.结果表明:各生境的生长型以草本植物为主,自然林(48.54%)生长型最为丰富,其中乔木在各生境的占比中存在显著差异.在叶性状上,不同生境中叶型、叶级、叶质、叶毛类性状特征均存在极显著或显著差异,叶级(CV=5.84)和叶质(CV=5.40)的变异程度最高,其余叶性状均有不同程度变异.在果实类型和传播方式上,以浆果、蒴果、瘦果、颖果为多,自然林果实类型最丰富,多数果实以动物传播为主.

In order to clarify the species and functional traits of wild plant resources in Dinghu Mountain Nature Reserve,field survey and network database inquiry were adopted in 2019-2020.Through a comprehensive survey and analysis,including 1229 species,belonging to 171 families and 626 genera.Five species distribution habitats were classified under the vegetation characteristics and geographic character:wetland,wilderness grassland,valley forest,shrubs grassland on slope and natural forest,and analyzed its species composition and functional traits.The results show that the growth type of each habitat is mainly herbaceous.The natural forests(48.54%)have the most abundant growth types,among them,the trees are significantly different in the proportion of the various habitats.In leaf traits:leaf type,leaf-size class,leaf texture,and leaf hair traits are highly or significant difference in different habitats,leaf-size class(CV=5.84)and leaf texture(CV=5.40)have the highest degree of variation.In fruit type and dispersal mode:berry,capsule,achene,caryopsis,and the woodland fruit types are the most abundant,and most of them are mainly animal dispersal.