作　　者： ; ; ; (邹滨）; (沈孝清）; (扶建庭）;

机构地区： 广州大学生命科学学院华南生物多样性研究所

出　　处： 《生态科学》 2007年第2期115-119,共5页

摘　　要： 应用植被样方调查法研究了广东杨东山-十二渡水自然保护区内的广东松群落的物种组成、科的地理分布和种群年龄结构。结果表明,在2000m2的样方中,有维管植物152种,隶属于54科,其中有广东松、福建柏2种国家Ⅱ级保护植物。群落乔木层的Simpson和Shannon-Wiener多样性指数分别为0.866和3.966。群落优势科为山茶科、樟科、壳斗科、杜鹃花科等,植物科的地理成分以泛热带和北温带分布型等占优势,体现了南亚热带向中亚热带过渡的特点。种群的立木结构表明广东松幼苗极少,属于衰退种群,将来有可能被其它物种代替。保护珍稀濒危的广东松,可采取必要的人工抚育措施,保护其生境,保证广东松幼苗的天然更新。 Ecological characteristics of Pinus kwangtungensis community at Yangdongshan-Shierdushui Nature Reserve, Lechang, Guangdong were studied by using the quardat method. The results showed that there are 152 species of vascular plants in 54 families in a sampling area of 2000 m^2, including two species of national protected plant Pinus kwangtungensis and Fokienia hodginsii. The Simpson and the Shannon-wiener indexes of species diversity are 0.866 and 3.966, respectively. The dominant families are Theaceae, Lauraceae, Fagaceae, and Ericaceae, etc. Most of the floristic of family are Pan-tropical and North temperate distributing types, which showed the characteristics of transition from south subtropical to mid-subtropical elements. Analysis on the age structure of the population indicated that Pinus kwangtungensis is a decay population in this nature reserve, which has few young individual, and likely to be replaced by other latifoliate floristic species in the future. In order to protect the rare and endangered species, Pinus kwangtungensis, the most important thing is to protect the habitats, taking necessary measure if possible.

关 键 词： 广东松 群落特征 物种多样性 杨东山 十二渡水自然保护区

领　　域： [生物学]