越南蒲马特国家自然保护区植物区系特征(英文)

Floristic characteristics of Pu Mat National Park,Nghe An Province, Central Vietnam

关键词:  蒲马特国家公园  植物区系组成  地理成分  越南

Key words:  Pu Mat National Park  floristic composition  geographical elements  Vietnam

摘要:

蒲马特国家公园位于越南中部的义安省,国际著名的生物多样性极为丰富的Annamite山系的核心地区。基于植物标本鉴定,在蒲马特国家公园保护区内记录有维管束植物184科,771属,2018种(包括变种和亚种)。该植物区系占整个越南植物区系的21%,其中的木兰亚纲植物占该植物区系总种数的90.98%,总属数的90.4%及总科数的83.7%。含种数最多的科包括茜草科(37属/129种),大戟科(36/99),兰科(34/73),樟科(11/66),桑科(10/54),蝶形花科(24/51),壳斗科(4/50),紫金牛科(5/48)及芸香科(14/45)等。在种子植物地理成分组成上,有11个科的分布区类型及14属分布区类型,其中,热带分布型分别占总科数的85.6%和总属数的90.1%,并且在其热带分布属中,热带亚洲成分占总属数的31.4%。这些特征显示,蒲马特国家公园植物区系是典型热带性质的植物区系,属于热带亚洲植物区系的一部分。

Abstract:

Pu Mat National Park(PMNP)is situated in Nghe An Province,Central Vietnam and in the core area of the well-known biodiversity richness Annamite district. Based on the identification of specimens,2 018 species and 771 genera belonging to 184 families of vascular plant were recorded in the protected area of PMNP. The flora of PMNP represents 21% of the total Vietnamese flora. In the floristic composition of PMNP,magnoliophyta contributes 90.98% species,90.4% genera,and 83.7% families of the total flora. The families with most species richness in the flora include Rubiaceae(37 genera/129 species),Euphorbiaceae(36/99),Orchidaceae(34/73),Lauraceae(11/66),Moraceae(10/54),Papilionaceae(24/51),Fagaceae(4/50),Myrsinaceae(5/48)and Rutaceae(14/45). From the study on the geographical elements of seed plants,11 areal types at family level and 14 areal types at generic level were recognized. Tropical elements in total make up 85.6% of the total family and 90.1% of the total genera,in which tropical Asian elements contribute to 31.4% of the total genera. It is concluded that the flora of PMNP is typically tropical in nature,and is part of tropical Asian flora.