长青自然保护区常绿阔叶木本植物种类及分布调查

Evergreen Broad-leaved Woody Plants in Changqing National Nature Reserve of Shaanxi

为了掌握常绿阔叶木本植物的本底资料,提高保护管理水平,采用样线、样方、文献查阅和标本鉴定的综合方法,系统分析常绿阔叶木本植物的种类与分布。调查显示长青国家级自然保护区内有常绿阔叶木本植物54属100种,包括乔木种类26种,灌木种类59种,攀缘灌木6种,缠绕灌木4种,藤本5种,其中属于世界分布的有1属2种,热带分布的有25属44种,温带分布的有25属52种,中国特有属3属4种,在秦岭生物多样性中具有突出的典型性和代表性,强烈地表现了气候带南北过渡的重要特征。保护区内的植被部分为常绿落叶阔叶混交林,依据生境条件、群丛组成成分、外貌和结构特征,可划分为10种群丛类型。

To improve the conservation management of the evergreen broad --leaved woody plants, the baseline information regarding the species and their distribution pattern were collected through sample line, quadrate, literature review and specimen identification. Results showed that there are 100 species evergreen broad--leaved woody plants of 54 genera, including 26 species of arbors, 59 shrubs, 6 climbing shrubs, 4 voluble shrubs and 5 vines, of which 2 species of 1 genus are distributed world wide, 44 species of 25 genera in tropics, 52 species of 25 genera in temperate zone, 4 species of 3 genera only in China. The vegetation distribution is typical of the biodiversity of Qingling Mountains and characterizes north--south climatic transition zones. The majority of the vegetation in Changqing Na- tional Nature Reserve is evergreen and deciduous broad--leaved forest and can be classified into 10 phytocoenoses according to their habitat, community composition, appearance and structural features.