甘肃南部大果青杄群落特征研究

Study on the Community Characteristics of Picea neoveitchii Mast.in Southern Gansu Province

以大果青杄为研究对象,在甘肃南部白龙江林区插岗林场选取10块标准样地进行调查,分析了大果青杄群落的种类组成、区系特点、生活型及群落垂直结构等群落特征。结果表明:在植物区系地理成分上,该群落属的分布类型以温带性质为主,生活型以高位芽植物居多,群落成层现象明显,分为乔木层、灌木层、草本层,同时,也有层间植物伴生。植物的科属组成较复杂,标志着大果青杄群落是一个顶级、成熟的群落。

Based on 10 stands investigation in Chagang forest farm located in Bailong River forest re- gion of southern Gansu, Picea neoveitchii Mast. community was researched in terms of its composi- tion, features, life form and vertical structures. On the level of floral elements, the distribution type of this community belonged to warm temperature in nature and most of the life form types belonged to phanerophytes and structure hierarchy is clear in tree layer, shrub layer and herb layer. The composi- tion of genera and families were complicated, which symbolizes that the community of picea neoveitchii Mast. is a top and mature community.