金城山草本层淫羊藿植物群落的稳定性分析  

Analysis of the Stability of the Plant Community of Epimedium brevicornu Maxim.of Jincheng Mountain in Jialing River Basin

作　　者：杨子松[1] 黎云祥[2] 钱宝英[3] 吴天德[1] 冯图[4] 

机构地区：[1]阿坝师范高等专科学校化学化工与生命科学系,四川郫县611741 [2]西华师范大学.四川省环境科学与生物多样性保护重点实验室,四川南充637002 [3]台州学院生命科学学院,浙江台州31700 [4]毕节学院环境与生命科学系,贵州毕节551700

出　　处：《安徽农业科学》2009年第8期3686-3689,共4页Journal of Anhui Agricultural Sciences

基　　金：四川省教育厅青年基金项目(2006B092);阿坝师范高等专科学校重点项目(ASA07-07);四川省杰出青年学科带头人培养计划项目(O4ZQ026-047);四川省科技厅基础项目(03JY029021-22)

摘　　要：[目的]分析嘉陵江流域金城山草本层淫羊藿植物群落的稳定性。[方法]研究对象是金城山森林群落草本层植物淫羊藿,以及作对照的鸢尾、复叶耳蕨、苔草、卷柏、细柄草。采用随机取样法调查了20个2 m×2 m样方。对每个样方进行草本层主要植物种群的频度、盖度、密度、高度和生物量的测定。最后计算金城山草本层几种主要植物的生态位宽度和生态位重叠。[结果]测定金城山草本层几种主要植物的生态位宽度和生态位重叠结果表明:金城山草本层植物植物群落已经具有了相当的稳定性,但这种稳定性是有限的,还处于动态的变化之中。[结论]对建立农林复合体系,开发淫羊藿中药资源和加强淫羊藿野生资源保护有一定的指导意义。[ Objective ] The research aimed to analyze the stability of the plant community of Epimedium brevicornu Maxim. in Jineheng Mountain in Jialing River basin. [ Method ] The study objeets were E. brevicornu Maxim. and the plants took as control of Iris teetorom, Araehniodes chinensis, Carex sp, Selaginella pulvinata, Capilipedium prviflorum. Twenty quadrats of 2 m × 2 m were investigated by random sampling method. The frequency, coverage, density, height and biomass of several main plants of the herbaceous layer were determined in eaeh quadrat. Finally, the niche breadth and niche overlap of main plant community of the herbaceous layer in Jincheng Mountain were ealeulated. [ Result] The results of the niche breadth and niche overlap indicated that the relative stabilization has occurred for the plant community of E. brevicornu Maxim. of the herbaceous layer in Jineheng Mountain in Jialing River basin and the conditions of the stability are changing all the time. [ Conclusion] The study would be very useful to explore and conserve the resources of E. brevieornu Maxim.

关 键 词：生态位宽度 生态位重叠 草本层 淫羊藿群落 稳定性 嘉陵江流域金城山 

分 类 号：S718.542[农业科学—林学]