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广西植被植物区系研究
苏宗明;   
广西植物研究所
摘要:
广西植被植物区系组成有217科,1025属,乔木层优势种430种。分层统计,乔木层278属,灌木层198属,草本层403属,层间植物145属。927属种子植物有14个分布区类型和19个变型,热带分布占73.0%,温带分布占23.8%。分层:乔木层热带分布占74.1%,温带分布占19.8%,草本层热带分布占68.6%,温带分布占29.8%;泛热带分布42.5%在草本层,22.5%在乔木层;热带亚洲分布37.5%在乔木层,20.7%在草本层;北温带分布48.4%在草本层,30.6%在乔木层;东亚和北美洲间断分布37.5%在乔木层,17.5%在草本层;东亚分布44.4%在草本层,25.0%在乔木层。以优势种统计,热带分布占34.8%,南亚热带分布占28.8%,中亚热带分布占36.3%。
关键词:  广西  植被植物区系  分布区类型  特点和规律性  
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