天龙山植物群落优势种群生态位研究  

Study on Niche of Dominant Species of Plant Communities in Tianlong Mountain, Shanxi

作　　者：刘秀珍[1] 张金屯[2] 

机构地区：[1]山西大学黄土高原研究所,山西太原030006 [2]北京师范大学生命科学学院,北京100875

出　　处：《山西大学学报（自然科学版）》2004年第4期418-423,共6页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(30070140);教育部骨干教师基金

摘　　要：对天龙山植被的17个优势种群生态位进行了研究,首先用TWINSPAN与传统群落的分析方法,把40个样方分为6个群落类型,用Levins和Shannon-wiener生态位宽度和Petraitis生态位特定重叠指数测定群落中优势种群生态位宽度和生态位重叠,并分析其生态学意义.结果表明,种群生态位宽度越大,对环境的适应能力就越强,对资源的利用能力也就越强;生态位重叠值越大,种群间的生态相似性越大,利用资源的相似性程度越高;生态位宽的种群对生态位窄的种群可能有较高的重叠值,反之则较低.The niche characteristics of 17 dominant species of plant communities in Tianlong Mountains were analyzed, including the 40 quadrats were divided into 6 types of commnities by TWINSPAN,and the niche breadths and niche overlaps of main dominant species in the communities in Tianlong Mountains were measured by using Levins,Shannon-Wiener and Petraits's methods.The results showed that the niche breadther of some species has high capability of adapting environment.The niche overlaps among species is means that they have the same or simulate environment requirements,and species with broad niche breadth have larger overlaps values upon the other species.

关 键 词：天龙山 生态位宽度 生态位重叠 自然保护 

分 类 号：Q948.1[生物学—植物学]