糯扎渡自然保护区香糯竹群落特征

香糯竹(Cephalostachyum pergracile)是一种具有较高经济价值、文化价值和学术价值的热性丛生竹种，调查发现糯扎渡自然保护区是目前香糯竹保存较好、面积较大的区域。文章基于7个标准样方数据对糯扎渡自然保护区香糯竹林的群落特征、物种组成等进行了较为全面的系统分析。结果表明：1)香糯竹群落物种组成较为丰富，共记录到维管束植物185种，隶属70科143属，其伴生种有银柴(Aporusa dioica)、毛枝青冈(Cyclobalanopsis helferiana)、厚皮树(Lannea coromandelica)、黄竹(Dendrocalamus membranaceus f.membranaceus)等；2)香糯竹群落按聚类结果分为5个群丛，相互间C_j值较小，界限及层次结构明显。研究结果可为香糯竹的保护、经营管理、培育等构建近自然的植物群落体系提供科学依据。

Characteristics of Cephalostachyum pergracile Community in Nuozhadu Nature Reserve

Cephalostachyum pergracile is a tropical sympodial bamboo species with high economic, cultural and academic values. The investigation finds that Nuozhadu Nature Reserve is where C. pergracilea is well preserved in large area. Based on the data from 7 standard quadrats, the paper systematically analyzes the community characteristics and species composition of C. pergracile forest in Nuozhadu Nature Reserve. The results show that: 1) There are abundant species composition in the C. pergracile forest. A total of 185 species of vascular plants are recorded, belonging to 70 families and 143 genera, with the associated species such as Aporusa dioica, Cyclobalanopsis helferiana, Lannea coromandelica, Dedrocalamus membranacea f., etc.; 2) According to the clustering results, C. pergracile community can be divided into five clusters, with low C_j values, obvious boundaries and hierarchical structures. The results can provide a scientific basis for the protection, management and cultivation of C. pergracile to establish a near-nature plant community system.