| 秦岭太白红杉种群结构与动态的研究 |
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| 引用本文： | 闫桂琴,赵桂仿,胡正海,岳明.秦岭太白红杉种群结构与动态的研究[J].应用生态学报,2001,12(6):824-828. |
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| 作者姓名： | 闫桂琴 赵桂仿 胡正海 岳明 |
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| 作者单位： | 西北大学生命科学院秦岭生物多样性研究中心, 西安, 710069 |
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| 基金项目： | 山西省自然科学基金(961025)、山西省归国人员基金(99-13)和陕西省教育厅重点科研计划资助项目(00JK007) |
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| 摘 要： | 在秦岭太白山、光头山、玉皇山和冰晶顶等4个地段分别设置了4个样地,用样方法对太白红杉种群进行了调查.共做样方280个.分析了太白红杉的群落学特征、径级结构及其密度变化规律;编制了太白红杉的静态生命表;绘制了存活曲线和死亡曲线;从多角度研究了太白红杉种群的动态变化规律结果表明该种群存活曲线趋向于Deevey-Ⅱ和Ⅲ之间,高径级种群趋向于稳定,低径级种群则反之.幼年个体补充不足,严重影响着该种群的生存和发展.
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| 关 键 词： | 太白红杉 种群 径级结构 生命表 存活曲线 种群动态 捕食偏好性 捕食功能反应 七星瓢虫 枸杞木虱 |
| 文章编号： | 1001-9332(2001)06-0824-05 |
| 收稿时间： | 2000-11-20 |
| 修稿时间： | 2000年11月20 |
Population structure and dynamics of Larix chinenesis in Qinling Mountain. |
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| YAN Guiqin,ZHAO Guifang,HU Zhenghai,YUE Ming.Population structure and dynamics of Larix chinenesis in Qinling Mountain.[J].Chinese Journal of Applied Ecology,2001,12(6):824-828. |
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| Authors: | YAN Guiqin ZHAO Guifang HU Zhenghai YUE Ming |
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| Institution: | College of Life Sciences Northwest University, Xian 710069 |
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| Abstract: | In Qinling Mountain,4 stands were set up at Taibai Mountain,Guangtou Mountain,Yuhuang Mountain,and Bingjingding Mountain respectively.280 plots in Larix chinensis population were investigated by sampling method.The community feature,size-class structure,and regulation of changing density were analyzed,as well as worked out the survival curve,death curve,and life table.The results showed that the populations had one peak of mortality between 25～30cm,and the survival curve trended to be the type between Deevey Ⅱ and Ⅲ.The populations were stable in large size-class and variable in small size-class.The restricting factor for the survival and development of the population was short seedling. |
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| Keywords: | Larix chinensis Population Size-class structure Life table Survival curve Population dynamics |
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