秦岭太白红杉种群结构与动态的研究

应用生态学报 ›› 2001, Vol. 12 ›› Issue (6): 824-828.

秦岭太白红杉种群结构与动态的研究

闫桂琴, 赵桂仿, 胡正海, 岳明

西北大学生命科学院秦岭生物多样性研究中心, 西安, 710069

收稿日期:2000-11-20 修回日期:2001-03-06 发布日期:2001-11-25
通讯作者: 闫桂琴,女,1956年生,教授,博士,主要从事生物多样性、植物生态学、分子生态学研究,发表论文20余篇.E-mail:guiqin-2000@yahoo.com.cn E-mail:guiqin-2000@yahoo.com.cn
基金资助:
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)

Population structure and dynamics of Larix chinenesis in Qinling Mountain

YAN Guiqin, ZHAO Guifang, HU Zhenghai, YUE Ming

College of Life Sciences Northwest University, Xian 710069

Received:2000-11-20 Revised:2001-03-06 Published:2001-11-25

摘要/Abstract

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.

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

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.

Key words: Larix chinensis, Population, Size-class structure, Life table, Survival curve, Population dynamics, Poratrioza sinica Yang &, preference, Coccinella septempunctata, Li, predation functional response

中图分类号:

Q948

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.

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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