四川白水河国家级自然保护区植物群落分布和优势种

Plant Community Distribution and Dominant Species in Baishuihe National Nature Reserve,Sichuan Province

通过野外植被调查,并根据《四川植被》分类的原则和依据,四川白水河自然保护区自然植被可分为6个植被型11个群系纲和25个群系。其中,1400~2000 m海拔段主要分布有14个群落类型,2000~2500 m分布有3个群落类型,2500~3000 m分布有3个群落类型,3000~3500 m分布有9个分布类型,3500~4000 m有4个群落类型分布,4000~4800 m有2个群落类型。通过重要值统计不同海拔段各个群落类型的乔木、灌木和草本层的优势种。建议通过建立有效保护体系、加强宣教、监测管护和科学研究达到对保护区植物植被资源的保护。

Based on field vegetation survey and the classification principles and basis of Sichuan Vegetation,the natural vegetation in the reserve can be divided into 6 vegetation types,11 flora classes and 25 flora.Among them,14 community types were maily distributed in 1400—2000 m altitude,3 community types in 2000—2500 m altitude,3 community types in 2500—3000 m altitude,9 community types in 3000—3500 m altitude,4 community types in 3500—4000 m altitude,and 2 community types in 4000—4800 m altitude.The dominant species of trees,shrubs and herbaceous layers of different community types at different altitudes were counted by the important values.It was recommended to establish an effective protection system,strengthening propaganda and education,monitoring management and scientific research to protect the plant vegetation resources in Baishuihe National Nature Reserve.