| 青海云杉群落空间结构特征研究 |
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| 引用本文： | 刘建泉,屈永才,王学福,王零,朱高,郭泽勇.青海云杉群落空间结构特征研究[J].干旱区资源与环境,2009(7). |
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| 作者姓名： | 刘建泉 屈永才 王学福 王零 朱高 郭泽勇 |
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| 作者单位： | 甘肃祁连山国家级自然保护区管理局;甘肃祁连山国家级自然保护区西水保护站;甘肃祁连山国家级自然保护区祁丰保护站; |
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| 基金项目： | 甘肃省科学事业费项目(甘科计字(2002)23号)资助 |
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| 摘 要： | 根据祁连山林区青海云杉群落16块样地256个样方的调查结果,对青海云杉群落的垂直结构、种群空间分布格局进行了研究。结果表明:青海云杉群落垂直结构分化明显,一般分为乔木层,灌木层,草本层和苔藓层4层;乔木层和青海云杉种群呈聚集分布格局,乔木种群聚集强度大小依次为:青海云杉混交林>青海云杉群落>灌木-青海云杉林>马先蒿-青海云杉林>苔藓-青海云杉林>草类-青海云杉林。不同林型的垂直结构、空间分布格局都存在一定的差异,草类-青海云杉林中乔木种群呈随机分布,其它林型和青海云杉群落中乔木种群均为聚集分布。苔藓-青海云杉林、草类-青海云杉林、灌木-青海云杉林中青海云杉种群都有随海拔升高由均匀分布向聚集分布逼近的特点。苔藓-青海云杉林是该群落中最稳定的林型,青海云杉种群对维持群落稳定起决定性作用。
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| 关 键 词： | 祁连山林区 青海云杉群落 空间分布格局 群落结构 |
Structure characteristics of Picea crassifolia communities in Qilian Mountains forest area |
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| LIU Jianquan,QU Yongcai,WANG Xuefu,WANG Ling,ZHU Gao,GUO Zeyong.Structure characteristics of Picea crassifolia communities in Qilian Mountains forest area[J].Journal of Arid Land Resources and Environment,2009(7). |
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| Authors: | LIU Jianquan QU Yongcai WANG Xuefu WANG Ling ZHU Gao GUO Zeyong |
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| Institution: | 1.Management Bureau of Qilian Mountains National Nature Reserve;Zhangye 734000;P.R.China;2.Xishui station of Qilian Mountains National Nature Reserve;Sunan 734028;3.Qifeng Station of Qilian Mountains National Nature Reserve;P.R.China |
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| Abstract: | Based on the data collected from 16 plots and 256 quadrat of Picea crassifolia communities in Qilian Mountains forest area,this research analyzed the vertical structure and spatial pattern of Picea crassifolia community.The results showed that Picea crassifolia community has the obvious vertical structure and it can be commonly divided four layers: tree、shrub、herb and moss layer.Tree layer and Picea crassifolia community has the aggregated distribution.According to size,the tree community aggregated intensity is Picea crassifolia mixed forest>Picea crassifolia community>shrub and Picea crassifolia forest>lousewort and Picea crassifolia forest>moss and Picea crassifolia forest>grass and Picea crassifolia forest.The different forest types have the different vertical structure and spatial pattern.The spatial pattern of trees in grass-Picea crassifolia forest is random distribution,in the others are aggregated distribution.The spatial pattern of moss-Picea crassifolia forest,grass-Picea crassifolia forest,shrub-Picea crassifolia forest will change from uniform distribution to aggregated distribution with the altitude rise.The best forest type is moss and Picea crassifolia forest,and Picea crassifolia population plays a decisive role in keeping the community steady. |
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| Keywords: | Qilian Mountains forest area Picea crassifolia community spatial pattern structure of community |
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