Abstract: The changes of plant diversity of mountain meadow were studied by the different management in Hongsongwa naturaI protective area of China by use of information cluster analysis and 4 diversityindices from richness .cvcnness, diversity and dominance.Thc results showed:Value of richness, evennessand diversity is the lowest.dominance is the highest in the centre of core region.In the transition site fromthe core region to the buffer region.value of richness, evenness and diversity is the highest,dominance isthe lowest.Richness.diversity and dominance descend - and evenness ascended in the experiment regionnext to residential part.Nine plots were clustered into five sections.:rhe transition site from the core regionto the buffer region and the experiment region next to residential part were divided into two sectlons individually.

Key words: Mountain meadow, Plant diversity, Grassland management

摘要： 本研究从植物群落物种的多样性、均匀度、生态优势度和丰富度四方面,利用聚类分析的方法,探讨河北省围场县红松控自然保护区在不同管理条件下物种多样性的变化规律。结果表明,核心区中央地带的多样性指数、均匀度和丰富度最小,而生态优势度最大；核心区与缓冲区过渡地带的多样性指数、均匀度和丰富度最大,而生态优势度最小；临近牧民居住区的实验区其多样性指数、生态优势度和丰富度均超下降,但均匀度上升。聚类分析将九个样地划分为五个组,其中核心区和缓冲区的过渡地带以及临近牧民居住区的实验区被单独划分成两组。

关键词: 山地草甸, 植物多样性, 草地管理