广西阳朔岩溶植被演替过程种群变化及物种多样性  

Population variation and species diversity in succession process of karst vegetation in Yangshuo, Guangxi

作　　者：欧祖兰[1] 李先琨[1] 苏宗明[1] 

机构地区：[1]广西壮族自治区中国科学院广西植物研究所,桂林541006

出　　处：《生态科学》2005年第4期295-297,309,共4页Ecological Science

基　　金：国家自然科学基金(30069005);国家"十五"科技攻关计划(2001BA606A-08);中国科学院"西部之光"人才培养计划;广西自然科学基金(桂科配0135026);广西科技攻关计划资助

摘　　要：采用时空替代法研究广西阳朔岩溶植被在演替过程中的种群变化和物种多样性。研究表明,随着演替的进展,耐荫种群增加,乔木种群增加,优势种的更替呈现出一定的连续性,后一演替阶段的优势种往往已经隐含在前一演替阶段中;物种丰富度随演替进展表现出草丛<落叶阔叶林<灌丛<常绿落叶阔叶混交林的趋势;灌木层的物种丰富度在各演替阶段中均是最高的;在各演替阶段中,落叶阔叶林阶段的群落均匀度均表现为最大。The characteristics of population variation and species diversity in succession processes of Karst vegetation in Yangshuo in Guangxi have been studied by a spatial series representing temporal series. The results showed that, with the development of succession, shade-tolerant populations and tree populations increased, the replacement of dominant species took on certain continuity, the dominant species of the process have hided in the former community; in the process of succession the species richness revealed the tendency of herbosa〈deciduous broad-leaved forest〈brush〈evergreen-deciduous broad-leaved mixed forest in every succession stages, the richness in shrub layer was highest than other layers, and the community evenness in deciduous broad-leaved forest stage was highest among four succession stages.

关 键 词：阳朔 岩溶植被 演替 种群变化 物种多样性 

分 类 号：Q941.3[生物学—植物学]