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| 濒危植物脱皮榆种群结构与分布格局研究 | |
| 引用本文： | 茹文明,张桂萍,毕润成,张峰,张金屯.濒危植物脱皮榆种群结构与分布格局研究[J].应用与环境生物学报,2007,13(1):14-17. |
| 作者姓名： | 茹文明 张桂萍 毕润成 张峰 张金屯 |
| 作者单位： | 1. 长治学院生化系,山西长治,046011 2. 长治学院生化系,山西长治,046011;山西大学黄土高原研究所,太原,030006 3. 山西师范大学生命科学学院,山西临汾,041004 4. 山西大学黄土高原研究所,太原,030006 5. 山西大学黄土高原研究所,太原,030006;北京师范大学生命科学院,北京,100875 |
| 基金项目： | 国家自然科学基金;山西省自然科学基金 |
| 摘 要： | 对山西南部中条山和霍山脱皮榆的种群结构与分布格局进行了研究,其中根据大小结构图和存活曲线分析脱皮榆种群动态,应用扩散系数、聚集指数、平均拥挤度、聚块性指数、聚集强度、Cassie指数(1/K)、Poisson分布和负二项分布的χ2拟合检验等方法研究分布格局.结果表明,脱皮榆种群幼苗个体比例较大,总体上近于增长型种群.脱皮榆分布格局呈聚集型,这主要与物种本身的生物学和生态学特性密切相关,同时受群落内生境异质性的影响.图2表2参14 |
| 关 键 词： | 脱皮榆 年龄结构 优势种群 分布格局 山西 |
| 收稿时间： | 2005-09-02 |
| 修稿时间： | 2005-12-30 |
Population Structure and Pattern of Endangered Ulmus lamellosa in Shanxi |
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| RU Wenming,ZHANG Guiping,BI Runcheng,ZHANG Feng,ZHANG Jintun.Population Structure and Pattern of Endangered Ulmus lamellosa in Shanxi[J].Chinese Journal of Applied and Environmental Biology,2007,13(1):14-17. | |
| Authors: | RU Wenming ZHANG Guiping BI Runcheng ZHANG Feng ZHANG Jintun |
| Institution: | 1.Department of Biology and Chemistry, Changzhi College, Changzhi 046011, Shanxi, China;2.Institute of Loess Plateau, Shanxi University, Taiyuan 030006, China;3.College of Life Sciences, Shanxi Normal University, Linfen 041004, Shanxi, China;4. College of Life Sciences, Beijing Normal University, Beijing 100875, China |
| Abstract: | Ulmus lamellose is one of the endangered species in China. 7 stands of U. lamellose were investigated in the Zhongtiao Mountains and Huoshan Mountains in Shanxi, and the population structure of U. lamellose was analyzed by survivorship curve and size class, moreover, the pattern of U. lamellose was studied by using dispersal index, clump intensity, mean crowding, patchiness index, intensity index, X2-test of goodness-of-fit for Poisson distribution and negative binomial distribution, respectively. The results showed that the population dynamics belonged to growth type because there were lots of the individuals in the population. The pattern of U. lamellose belonged clumped distribution, which closely related to its ecological and biological characteristics, as well as affected by its habitat heterogeneities. Fig 2, Tab 2, Ref 14 . |
| Keywords: | Ulmus lamellose age structure dominant population pattern Shanxi |
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