广东惠东古田省级自然保护区维管植物区系研究

Study on the Flora of Vascular Plants in Gutian Provincial Nature Reserve of Huidong,Guangdong Province

广东惠东古田省级自然保护区是广东省成立的第一批省级自然保护区之一,面积2189.2hm^2,森林覆盖率为99.47%,属于森林生态系统中的小型保护区。该次调查野生维管植物共186科609属1130种,其中蕨类植物29科45属80种,裸子植物4科4属6种,被子植物153科560属1044种。蕨类植物热带成分共33属,占本区域非世界属的91.67%,热带成分属占有绝对优势。种子植物热带成分共422属,占保护区非世界分布属的79.47%,热带成分属占有绝对优势。发现新记录科翅子藤科Hippocrateaceae1个,新纪录属42个,新记录种215个。保护区内珍稀濒危保护野生植物39种,其中蕨类植物5种,种子植物34种。

Gutian Provincial Nature Reserve in Huidong is one of the first provincial nature reserves in Guangdong Province.The area is 2189.2 hm^2 and the forest coverage rate is 99.47%.In this survey,there are 1130 species of wild vascular plants in 186 families and 609 genera.Among them,there are 80 species of pteridophytes belonging to 29 families and 45 genera,6 species of gymnosperms belonging to 4 families and 4 genera,1044 species of angiosperms belonging to 153 families and 560 genera.The tropical components of pteridophytes are 33 genera,accounting for 91.67%of the non-world genera in the region,and tropical composition holds an absolute advantage.The tropical components of seed plants are 422 genera,accounting for 79.47%of the non-world distribution genera in the reserve,and tropical composition holds an absolute advantage.One new record family Hippocrateaceae,41 new record genera and 215 new record species were found.There are 39 species of rare and endangered protected wild plants in the reserve,including 5 species of ferns and 34 species of seed plants.