东祁连山高寒草原柳灌丛——草地群落结构研究

Studies on community structure of Salix shrub in alpine grassland of east Qilian Mountain

以东祁连山高寒地区柳灌丛群落为研究对象,在海拔3050～3450m内设2样线,每样线沿海拔梯度每50m设1个16m×16m调查样地,采用记名记数法取样调查,对柳灌丛群落的结构、组成进行了系统研究。结果表明,东祁连山高寒柳灌丛群落主要由30种植物构成,其中,灌木植物13种,草本植物17种,立面上该群落由高位芽植物层片、地面芽植物层片和地下芽植物层片组成。

The community structure of Salix shrub was studied in alpine grassland of east Qilian Mountain. Name and number notation was used to investigate plant species within eighteen 16 m×16 m plots (one for every 50 meters) from 3 050 m to 3 450 m. The results of the community structure and components systematic research showed that Salix shrub community was mainly consisted of 13 shrub species and 17 herbs, which could be divided into phanerophyte synusia, hemircyptophyte synusia and geophyte synusia.