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| 祁连山北坡草类-青海云杉林优势种群分布格局分析 | |
| 引用本文： | 邸华,刘建泉,丁国民,张元山,张义鹏. 祁连山北坡草类-青海云杉林优势种群分布格局分析[J]. 甘肃林业科技, 2009, 34(3): 5-8,32. DOI: 10.3969/j.issn.1006-0960.2009.03.002 |
| 作者姓名： | 邸华 刘建泉 丁国民 张元山 张义鹏 |
| 作者单位： | 1. 甘肃祁连山国家级自然保护区管理局,甘肃,张掖,734000 2. 甘肃祁连山国家级自然保护区哈溪保护站,甘肃,天祝,733200 3. 甘肃祁连山国家级自然保护区隆畅河保护站,甘肃,肃南,734400 |
| 摘 要： | 对祁连山林区中、东段草类-青海云杉林调查，用格局指数法测定格局指数C，并进行t检验，用聚集强度指标：丛生指标I、扩散型指数Is、负二项参数K、Cassie指标CA、聚块性指标L，分析了青海云杉种群分布格局，结果表明：祁连山中段青海云杉种群呈聚集分布，再计算聚集均数λ，证明造成种群聚集分布的原因是种群生物学特性与环境的共同作用。祁连山东段青海云杉种群呈均匀分布、均匀分布向随机分布的逼近，主要是由种群个体间的竞争造成的，种群在一定空间内个体扩散分布呈Poisson分布。 |
| 关 键 词： | 青海云杉 优势种 种群 分布格局 |
Analysis on the Distribution Pattern of Grass-Picea crassifolia Forest Dominant Population in the Northern Slope of Qilian Mountains |
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| DI Hua,LIU Jian-quan,DING Guo-ming,ZHANG Yuan-shan,ZHANG Yi-peng. Analysis on the Distribution Pattern of Grass-Picea crassifolia Forest Dominant Population in the Northern Slope of Qilian Mountains[J]. Journal of Gansu Forestry Science and Technology, 2009, 34(3): 5-8,32. DOI: 10.3969/j.issn.1006-0960.2009.03.002 | |
| Authors: | DI Hua LIU Jian-quan DING Guo-ming ZHANG Yuan-shan ZHANG Yi-peng |
| Affiliation: | DI Hua1,LIU Jian-quan1,DING Guo-ming1,ZHANG Yuan-shan2,ZHANG Yi-peng3(1.Management Bureau in Qilian Mountains National Nature Reserve,Zhangye Gansu 734000,China,2.Haxi Protection Station of Qilian Mountains Nature Reserve,Tianzhu Gansu 733200,3.Longchanghe Protection Station of Qilian Mountains Nature Reserve,Su'nan Gansu 734400,China) |
| Abstract: | Based on the investigation date of grass-Picea crassifolia forest in the middle and eastern section of Qilian Mountains, this paper analyzed distribution pattern of Picea crassifolia population though the determination the pattern index C with the pattern index method, and t-value, using aggregation intensity indicators:clumping index I, dispersal index IS, negative binomial parameter K, Cassie index CA and patch index L, the results showed:the Picea crassifolia population in the middle of the Qilian Mounta... |
| Keywords: | Picea crassifolia dominant species population distribution pattern |
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