| 甘肃小陇山锐齿栎种群结构分析 |
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| 引用本文： | 王勤花,巨天珍,常成虎,曹春,.甘肃小陇山锐齿栎种群结构分析[J].广西植物,2006,26(1):38-42,31. |
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| 作者姓名： | 王勤花 巨天珍 常成虎 曹春 |
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| 作者单位： | 西北师范大学,地理与环境科学学院,甘肃,兰州,730070 |
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| 基金项目： | 西北师范大学知识与科技创新工程基金(NWNU-KJCX-02-20)，甘肃省教委研究项目(031-28)资助~~ |
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| 摘 要： | 利用种群统计中的年龄结构,静态生命表和波谱分析的方法,对甘肃小陇山沙坝林业实验基地和麦草沟自然保护区中的锐齿栎种群结构动态进行分析,结果表明该种群年龄结构为衰退型。而静态生命表分析显示锐齿栎种群的存活曲线为DeeveyⅡ型,死亡率曲线有两个高峰;谱分析结果表明在锐齿栎种群自然更新的过程表现出明显的周期性。
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| 关 键 词： | 锐齿栎 种群 年龄结构 生命表 谱分析 |
| 文章编号： | 1000-3142（2006）01-0038-05 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004-12-202005-09-20 |
Study on the structure of Quercus aliena var.acuteserata population in Xiaolongshan,Gansu |
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| WANG Qin-hua,JU Tian-zhen,CHANG Cheng-hu,CAO Chun.Study on the structure of Quercus aliena var.acuteserata population in Xiaolongshan,Gansu[J].Guihaia,2006,26(1):38-42,31. |
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| Authors: | WANG Qin-hua JU Tian-zhen CHANG Cheng-hu CAO Chun |
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| Institution: | Department of Environment , Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | Field data were obtained from thirty 20 m×20 m plots in Shaba and Maicaogou of Mt.Xiaolongshan in Gansu. Based on the data obtained in the field,structure of Quercus aliena var.acuteserata population were analyzed through age structure,static life table,survival curve and spectral analysis in Xiaolongshan,Gansu. The result revealed that the population age structure exhibited the characteristics of stable type,the curve of survival generally trended to the Deevey Ⅱ,and there were two peaks of mortality. At the same time,spectral analysis of the population dynamic of Q.aliena var.acuteserata showed that there was a marked regularity of periodic fluctuation in the process of nature Q.aliena var.acuteserata. |
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| Keywords: | Quercus aliena var acuteserata population age structure life table spectral analysis |
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