藏东南华山松林下灌木和草本物种组成及区系分析  

Species Composition and Floristic Analysis of Shrubs and Herbs under Pinus armandii Forest in Southeast Tibet

作　　者：姚慧芳 王超 卢杰[1,2,3] 张萌[1,2,3] 张新生 于德水 郑维列 YAO Huifang;WANG Chao;LU Jie;ZHANG Meng;ZHANG Xinsheng;YU Deshui;ZHENG Weilie(Res.Institute of Tibet Plateau Ecology,Tibet Agriculture&Animal Husbandry University;Key Laboratory of Forest Ecology of Tibet plateau,Ministry of Education;National Key Station of Field Scientific Observation&Experiment of Alpine Forest Ecology System in Nyingchi Tibe,Nyingchi Tibet,860000,China)

机构地区：[1]西藏农牧学院高原生态研究所 [2]西藏高原森林生态教育部重点实验室 [3]西藏林芝高山森林生态系统国家野外科学观测研究站,西藏林芝860000

出　　处：《高原农业》2021年第4期332-337,360,共7页Journal of Plateau Agriculture

基　　金：科技部国家野外科学研究观测站(生态系统)运行补助项目(西藏林芝高山森林生态系统国家野外科学观测研究2015-2020);西藏农牧学院研究生创新计划项目(YJS2020-29)。

摘　　要：本研究旨在分析藏东南华山松林下灌木层和草本层的物种组成和地理成分。通过在林芝市察隅县车因沟、慈巴沟,波密县岗乡自然保护区、嘎朗湖、易贡乡,巴宜区东久乡设置样地,运用群落学和生态学调查方法,并查阅相关书籍、文献等进行总结分析。结果表明:(1)华山松林下灌木和草本共有维管植物56种,属于32科46属。生活型中高位芽数量最多,占总数的55.3%,数量最少的是1 a生植物。(2)物种种属组成中,蔷薇科和百合科的物种数最多,且单种科(属)较多。(3)蕨类植物中只有1科1属属于泛热带分布型,世界分布型有2科2属。(4)华山松群落内种子植物科的分布区表现出热带和温带性质,种子植物总体上表现出明显的温带成分。结论:藏东南华山松群落垂直结构明显,层间物种丰富,且灌木较多,抑制该种群的发展,应加强对华山松种群的保护及后续研究。This experiment was to analyze the species composition and floristic analysis of shrub layer and herb layer under Pinus armandii forest in Southeast Tibet,by setting up sample plots in Cheyingou and Cibagou,Chayu County,Gangxiang Nature Reserve,Galanghu and Yigong Township,and Dongjiu Township,Bayi District,Linzhi City,using community and ecological survey methods,and consulting relevant books and literature for summary and analysis.The results showed as follows:(1)There were 56 species of vascular plants in shrub and herb under P.armandii forest,belonging to 46 genera,32 families.The number of high buds in life forms was the largest,accounting for 55.3%of the total,and the least was annual plants.(2)The species and genera were mainly Rosaceae and Liliaceae,and there were more single families(genera).(3)Only 1 family and 1 genus of ferns belonged to pantropical distribution type,and the world distribution type had 2 families and 2 genus.(4)The distribution areas of seed plants in P.armandii community showed tropical and temperate characteristics,and seed plants generally showed obvious temperate components.In conclusion,the vertical structure of P.armandii community in southeast Tibet was obvious,with rich interlayer species and more shrubs.The protection and follow-up study of P.armandii population should be strengthened to inhibit the development of the population.

关 键 词：藏东南 华山松 物种组成 区系分析 

分 类 号：S718.54[农业科学—林学]