铜壁关自然保护区藤本植物多样性研究

Analysis on Diversity of Vines in Tongbiguan Nature Reserve

为了解铜壁关自然保护区藤本植物现状,经实地考察对其组成和多样性进行了研究。结果表明:本区有藤本植物676种,隶属于65科209属,双子叶藤本植物具有明显优势,计56科192属597种。生活型组成以高位芽藤本种类为主,占藤本植物种数的81.51%。攀援方式中缠绕藤本具有明显优势,占藤本植物种数的53.99%,并提出了斜倚类藤本植物的概念。极高的降雨量、悬殊的海拔、多样的生境类型、广泛发育的各类原始阔叶林,是本区藤本植物极为丰富的根本原因。

In order to understand the current status of vines in Tongbiguan Nature Reserve, the diversity andcomposition of vines were studied by field survey. The results showed that there are 676 vine species belonging to65 families and 209 genera in Tongbiguan Nature Reserve. Dicotyledonous vines donimate in the speciescomposition, with 597 species belonging to 192 genera and 56 families. According to life-form, phanerophytevines are predominant, accounting for 81.51% of the total. Twining vines are the majority and account for 53.99%of the total. The concept of leaning vines is proposed. High rainfall, undulating altitudes, diverse habitat types,and highly diverse primary broadleaved forests are significant of the enormous abundance of vines in this region.