作　　者： ; ; ; ;

机构地区： 西南林学院资源学院

出　　处： 《西南林学院学报》 2007年第6期1-4,10,共5页

摘　　要： 澜沧江自然保护区是大湄公河次区域内一个具有重要国际影响力的自然保护区，对澜沧江一湄公河流域的生态安全有较大影响．珍稀濒危植物在自然保护区中的地位十分特殊且极其重要，成为保护区森林生态系统和植物物种多样性是否受到良好保护的标志性特征．采用路线法、询问法和样地法，对澜沧江自然保护区珍稀濒危植物进行了调查．结果表明：区内有珍稀濒危植物23种（1变种）；珍稀濒危植物主要分布于海拔1450～3100m的半湿性常绿阔叶林和中山湿性常绿阔叶林中；生活型表现为木本类20种、草本类3种，木本类占森林生态系统组成的21．3％～26．0％，保护区森林生态系统正受到严重威胁． The Lancangjiang Nature Reserve has been focused attention at both home and abroad that possesses international significance. This nature reserve makes invaluable contribution to the ecological security in the Greater Mekong Sub-region for its special location and the biodiversity. The protection of rare and endangered plants is commonly taken as a symbolic feature for the conservation of local forest ecosystem and species diversity. The endangered plant species in the nature reserve were studied by sample plots, volutes and surveys. The results are as follows： There were 23 rare and endangered plant species and 1 variety in the reserve. The rare and endangered species were mainly distributed in the semi-humid evergreen broad-leaved forest and the mid-mountain humid evergreen broad-leaved forest at the altitude of 1 450 - 3 100 m. In terms of the life forms, there were 20 endangered woody plant species, accounting for 21.3% ~ 26.0% of the forest ecosystem, while there were 3 herbaceous plant species endangered. The study showed that the forest ecosystem in the nature reserve was severely threatened by activities of human beings

关 键 词： 澜沧江自然保护区 珍稀濒危植物 生态安全 大湄公河次区域

领　　域： [生物学]