二道白河河岸带珍稀植物的分布格局  

A Study on Distribution Pattern of the Rare Plant Species Along the Riparian Zone

作　　者：李冬[1] 王青春[2] 邓红兵[3] 

机构地区：[1]江西农业大学,江西南昌330045 [2]江西省林业调查规划研究院 [3]中国科学院生态环境研究中心,北京100085

出　　处：《江西农业大学学报》2005年第6期885-889,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家自然科学基金资助项目(39970123);江西省自然科学基金资助项目(0330023)

摘　　要：在长白山二道白河上游,沿河岸带共设置11条与河流方向垂直的8 m×96 m的样带,开展植物群落学调查与研究。结果表明:(1)沿河岸带分布有珍稀植物26种,其中国家级保护植物7种,占长白山自然保护区总数的18.4%;吉林省级保护植物19种,占长白山自然保护区总数的10.7%;(2)河岸带植物群落中的珍稀植物物种多样性在中等海拔高度最大,河岸带对珍稀濒危植物的保护具有十分重要的作用。Because of the importance of riparian zone in maintaining and protecting regional biodiversity, more and more ecologists are paying attention to riparian zone, and are aware of the important effects of riparian zone in basic study and practical management. In this study, eleven sampling belts （8 m×96 m） parallel to the bank of the upper reaches of Erdaobai River at different elevations in Changbai Mountain Reserve were selected to investigate the riparian vegetation and rare plants. The results showed ： （ 1 ） Twenty - six species of rare plants were found in the riparian zone. Among them, seven species belong to the national protection species of plants and account for 18.4% of the total rare plants in Changbai Mountain Reserve; and other nineteen species belong to Jilin provincial protection species of plants and account for 10.7% of the total rare plants there. （2） In the moderate elevation along the riparian zone, the biodiversity of the rare plant species is greatest. The riparian zone has a very important function in rare plant protection.

关 键 词：河岸带 珍稀植物 分布格局 主分量分析 

分 类 号：Q948.5[生物学—植物学]