粤东铜鼓嶂厚叶厚皮香灌丛群落特征初探  

A Preliminary Study on the Shrub Community of Ternstroemia Gymnanthera in Tongguzhang, Eastern Guangdong

作　　者：杨期和[1] 黎铝冰 廖金盛 汤诗迪 张艳 杨和生[1] YANG Qi-he;LI Lu-bing;LIAO Jin-sheng;TANG Shi-di;ZHANG Yan;YANG He-sheng(School of life sciences,Jiaying University,Meizhou 514015,China)

机构地区：[1]嘉应学院生命科学学院

出　　处：《嘉应学院学报》2019年第6期69-77,共9页Journal of Jiaying University

基　　金：广东省“冲补强”提升计划重点学科（农业资源与环境学科）建设项目;第四次全国中药资源普查项目（2017-152-013）;嘉应学院2019年大学生创新创业训练计划项目

摘　　要：通过对粤东铜鼓嶂的厚叶厚皮香植物群落进行调查,结果表明:样地群落共有植物60种,隶属于32科50属,其中被子植物有28科45属,蕨类植物有4科5属.植物群落为石斑木+厚叶厚皮香+吊钟花—野古草+细柄草群落,杜鹃花科、蔷薇科、禾本科、菊科占优势,主要优势种为石斑木、厚皮香、吊钟花、野古草和细柄草.可能由于受到一定程度的人为干扰,物种丰富度和多样性指数较其他灌丛群落更高.泛热带分布的属数为12,占总数的24%,所有的热带分布型属数为33,占总属数的66%,高位芽的比例为50%,接近南亚热带植被的组成特征.灌木层的三个优势种中,厚叶厚皮香、石斑木种群在相当长的一段时间内属于增长型种群,而吊钟花属于相对稳定型种群.由于草本层盖度大,个体数量多,种子脱落后不能及时入土萌发而失去萌发能力,导致幼苗缺乏.由于地处山地高海拔区域,气候相对寒冷干旱,土壤贫瘠,群落表现出较多的特殊性.由于优势植物观赏价值较高,应采取适当措施,保护这种群落以维护和营造这种灌丛景观.In this paper,the community of Ternstroemia kwangtungensis in Tongkongzhang,Eastern Guangdong was investigated.The results showed that there were 60 plants in the sample plots,belonging to 50 genus,32 families,including 45 genus,28 families of angiosperms and 5 genus,4 families of ferns.The plant community was Rhaphiolepis indica+Ternstroemia kwangtungensis+Enkianthus quinqueflorus-Arundinella anomala+Capillipedium parviflorum community,Rhododendron,Rosaceae,Gramineae and Compositae plants were dominant,and the main dominant species were Rhaphiolepis indica,Ternstroemia kwangtungensis,Enkianthus quinqueflorus,Arundinella anomala and Capillipedium parviflorum.The species richness and diversity index may be higher than those of other shrub communities due to some human disturbance.The genus number of pan-tropical distribution was 12,accounting for 24%of the total genus,the number of all tropical distribution types was 33,accounting for 66%,and the proportion of phaenerophytes was 50%,which is close to the composition characteristics of subtropical vegetation.Among the 3 dominant species in the shrub layer,Ternstroemia kwangtungensis and Rhaphiolepis indica population belonged to the growth population for a long time,while Enkianthus quinqueflorus population belonged to the relatively stable population.Because of the large coverage of herb layer and the large number of herb individuals,their seeds could not germinate in time after falling off and lost the germination ability,which leads to lack of seedlings.Because of the high altitude of mountain area,the climate is relatively cold and dry,the soil is barren,and the community shows more particularity.Due to the high ornamental value of dominant plants,appropriate measures should be taken to protect this community to maintain and build the scrub landscape.

关 键 词：厚叶厚皮香 灌丛 植物多样性 高海拔山地 粤东 

分 类 号：Q948[生物学—植物学]