Formations are often divided into subordinate community types characterized by their dominant species . 群系可以按其优势物种的特征划分为一些次级的群落类型。
The results indicated that the vegetation could be classified as 4 physiognomy types and 16 community types 结果表明,江湾机场的植被可划分为4个外貌类型、 16个群落类型。
A total of 28 community types were found on these pre - islands , comprising of 12 hassocks , 7 shrubs , and 9 forests 共调查到群落类型28个,其中草丛12个,灌丛7个,森林9个。
The characteristics of four main forest community types were analyzed by typical sampling technology , diversity and diversity were calculated with various calculation methods 摘要应用典型抽样法研究了三江源自然保护区4个主要森林群落的物种多样性,采用多种测度方法计算了各森林群落的多样性和多样性。
The structural diversity indices of all kinds of the community indicated that the community types , the other environmental factors , and human activity are main factors effecting structure diversity 不同群落类型的结构多样性研究表明:群落类型、生境条件、各环境因子和人类活动是影响群落结构多样性的主要因素。