| 北京松山自然保护区油松种群生活史及其空间分布格局 |
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| 引用本文： | 牛丽丽,余新晓,刘淑燕,刘彦,岳永杰,王小平,陈俊崎.北京松山自然保护区油松种群生活史及其空间分布格局[J].北京林业大学学报,2008(Z2). |
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| 作者姓名： | 牛丽丽 余新晓 刘淑燕 刘彦 岳永杰 王小平 陈俊崎 |
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| 作者单位： | 北京林业大学水土保持与荒漠化防治教育部重点实验室;北京市园林绿化国际项目合作管理办公室; |
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| 基金项目： | 北京市科委重大项目(D0706001000091); “十一五”国家科技支撑计划项目(2006BAD03A02) |
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| 摘 要： | 该文从生命表特征、年龄结构、存活曲线以及种群不同龄期个体空间分布格局4个方面,研究了松山自然保护区油松种群的生活史动态特征与空间分布规律。结果表明:①油松种群在其生长过程中,当胸径达到22.5cm左右时,由于种内不同个体间为争夺空间与阳光,将遭遇一次死亡高峰;随后将进入一个平稳的生长期,随着龄级的增长,死亡率逐渐升高,直至其衰老死亡。②油松种群的存活曲线基本接近DeeveyⅢ型(曲线凹型)。③油松种群不同龄期个体的分布格局、龄期间的空间关联与尺度有密切的关系,在小尺度上油松各龄期趋于聚集分布,龄期间有较强的关联性;当空间尺度大于临界值时,油松各龄期趋于随机分布,龄期间的空间关联性减弱。
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| 关 键 词： | 种群结构 空间分布格局 空间关联 龄期 种群动态 |
Life history characteristics and spatial distribution of Pinus tabulaeformis population in Songshan Nature Reserve of Beijing |
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| NIU Li-li,YU Xin-xiao,LIU Shu-yan,LIU Yan,YUE Yong-jie,WANG Xiao-ping,CHEN Jun-qi. Key Laboratory of Soil , Water Conservation & Desertification Combating of Ministry of Education,School of Soil , Water Conservation,Beijing Forestry University,P.R.China, Beijing Forestry , Parks.Life history characteristics and spatial distribution of Pinus tabulaeformis population in Songshan Nature Reserve of Beijing[J].Journal of Beijing Forestry University,2008(Z2). |
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| Authors: | NIU Li-li YU Xin-xiao LIU Shu-yan LIU Yan YUE Yong-jie WANG Xiao-ping CHEN Jun-qi Key Laboratory of Soil Water Conservation & Desertification Combating of Ministry of Education School of Soil Water Conservation Beijing Forestry University PRChina Beijing Forestry Parks |
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| Institution: | NIU Li-li1,YU Xin-xiao1,LIU Shu-yan1,LIU Yan1,YUE Yong-jie1,WANG Xiao-ping2,CHEN Jun-qi2.1 Key Laboratory of Soil , Water Conservation & Desertification Combating of Ministry of Education,School of Soil , Water Conservation,Beijing Forestry University,100083,P.R.China,2 Beijing Forestry , Parks Department of International Cooperation,Beijing,100029,P.R.China. |
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| Abstract: | This paper analyzes the life history characteristics and spatial distribution of Pinus tabulaeformis population in Songshan Nature Reserve through four aspects(life table characteristics,age stucture,survival curve,and spatial pattern of individuals in different ageclasses).Results showed that,1)there is a peak of mortality at the DBH of about 22.5 cm,which was caused by intraspecific competition for space and light resource.Then the population will enter a stable growth period,after which mortality increas... |
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| Keywords: | population structure spatial pattern spatial association ageclass population dynamics |
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