【摘要】 2016年8月通过对云南景迈布朗族古茶园进行调查,分析了古茶园生态系统的物种组成、径级水平结构和垂直结构,为深入了解古茶园生态系统的多样性维持机制和科学评价古茶园的植被状况提供参考。结果表明:群落中共有植物39种,全都为被子植物,隶属20科33属,未发现裸子植物;物种多样性丰富,区系地理成分热带性质明显。群落更新稳定,茶树在荫蔽条件下完成了自我更新,数量上占绝对优势。群落垂直空间分层明显,乔木层平均胸径为24.29 cm,崖摩胸径最大,为24.39 cm;主要优势树种为西南木荷、云南栘和蒲桃,高度差异极显著,分为乔木层与灌木及乔木更新层2个大层,每个大层中又可细分为上下2个亚层;乔木层个体数量少,但对下层植物有较大影响。更多还原

【Abstract】 In order to deeply understand biodiversity maintenance mechanism within the ancient tea garden ecosystem and to scientifically evaluate vegetation condition of the ancient tea garden,the Blang ancient tea garden in Yunnan was investigated in August 2016. The results showed that there were 39 species 33 genus 20 families in the community. All of them were angiosperms,no gymnosperm was found. The analysis of floristic geographical elements indicated that the tropic elements were dominant. Community has a stable regeneration cycle,and dominant tea plants could complete self-regeneration under shade of the trees. In vertical space,community stratification was obvious. The xylophyte dominated in the community,which was divided into 2 distinct layers: the tree layer and shrubs and trees regeneration layer. Although the tree layer has a small number of tree individuals,it has important influence on the lower plant growth.更多还原