刺叶栎在浙江的分布特点和种群结构的研究

Characteristics of distribution and population structure of Quercus spinosa in Zhejiang

在龙潭头刺叶栎自然保护小区内,对刺叶栎的分布和群落学进行调查研究.根据群落外貌和种类优势度相结合的分类原则,将刺叶栎的生长群落类型分为杉木-木荷林、黄山松-木荷林和白栎-甜槠林3种.刺叶栎在白栎-甜槠林群落中生长势最好,在黄山松-木荷林群落中生长势次之,而在杉木-木荷林群落中生长势较差.刺叶栎一般分布在低山区域,分布的群落总面积187hm2,总计约8100株,其年龄结构可分为5个等级.种群结构属于稳定型,但幼苗储备不足,种群易衰退,需加强保护.本文从这些角度出发,也提出了有关保护刺叶栎资源的有关对策和措施.

Distribution and population of Quercus spinosa were surveyed in the restricted natural reserve in Longtantou, Xianju County of Zhejiang Province. On the basis of the data obtained, dominant populations, community type and population structure were analyzed. The results show that： （i） The communities where Q. spinosa plants are located could be divided into three types, namely, Cunninghamia lanceolata-Schima superba community, Pinus taiwanensis-Schirna superba community and Quercus fabri-Castanopsis eyrei community. Growth and development of Q. spinosa plants in Quercus fabri-Castanopsis eyrei community are better than that of other communities. （ii） Q. spinosa plants grow in regions of mountains at relatively low elevation, with c. 8100 individuals covering a total area of 187 hm2. （iii） Population structure of Q. spinosa, which consists of 5 age classes, is stable, although the sapling reserves are not adequate and the population is liable to decline. Proposals and measures tor the protection of Q. spinosa are put forward in the paper.