检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]山西大学环境与资源学院,山西太原030006 [2]山西大学生命科学学院,山西太原030006
出 处:《山西大学学报(自然科学版)》2010年第3期468-472,共5页Journal of Shanxi University(Natural Science Edition)
基 金:山西省自然科学基金(2006011077);山西省留学基金(20060024)
摘 要:采用TWINSPAN将历山白云洞景区植物群落分为8个群丛,应用丰富度指数、多样性指数和均匀度指数对不同群落类型和层片的物种多样性进行了研究.结果表明:(1)Shannon-Wiener多样性指数与均匀度指数变化趋势整体相似,与丰富度指数变化趋势略有差别,与Simpson多样性指数变化趋势相反,三种多样性指数取得了较一致的分析结果.(2)不同层次的物种对群丛的物种多样性贡献是不等价的,群丛的丰富度指数主要取决于灌木层和草本层,而多样性指数和均匀度指数主要取决于灌木层和乔木层.32 quadrats from Baiyun dong Scenic Spot in Lishan Mountains,Shanxi,and those quadrats were classified into 8 associations by TWINSPAN,moreover,the species diversity of the associations was studied by using species richness indices,evenness indices and species diversity indices,respectively.The results indicated that:(1) In the aspect of change trend,Shannon-Wiener diversity indices is similar to evenness indices,and differ little with richness indices,but is opposite to Simpson diversity indices.Accordant result is achieved by using the 3 indices.(2) The contributions of species at different layers to the species diversity of community were not equivalent,community’s richness indices was decided by the layers of shrubs and herbages,and the species diversity indices and evenness indices were decided by the layers of shrubs and arbors.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.222