[1]张立杰,蒋志荣*.青海云杉种群分布格局沿海拔梯度分形特征的变化[J].西北林学院学报,2006,21(02):64.
 ZHANG Lijie,JIANG Zhirong*.Fractal Properties of Spatial Pattern of Picea crassifolia Population at Different Altitudes[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2006,21(02):64.
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青海云杉种群分布格局沿海拔梯度分形特征的变化 ()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第21卷
期数:
2006年02期
页码:
64
栏目:
林业基础科学
出版日期:
2006-04-30

文章信息/Info

Title:
Fractal Properties of Spatial Pattern of Picea crassifolia Population at Different Altitudes
作者:
张立杰蒋志荣*
甘肃农业大学 林学院,甘肃 兰州 730070
Author(s):
ZHANG LijieJIANG Zhirong*
Collage of Forestry, Gansu Agriculture University, Lanzhou, Gansu 730070,China
关键词:
青海云杉种群分布格局计盒维数信息维数海拔
Keywords:
Picea crassifolia population distribution pattern boxcounting dimension information dimension altitude
分类号:
S718.542
文献标志码:
A
摘要:
应用分形几何理论和方法,对祁连山青海云杉种群沿海拔梯度空间分布格局的分形特征进行了分析。结果表明,在2 7003 300 m的海拔,计盒维数分别为:1.706、1.880、1.927、1.640、1.465、1.219,表明其水平占据空间的能力很强,信息维数分别为:1.660、1.684、1.805、1.761、1.470、1.359、1.013,表明其结构较复杂,格局强度较高。计盒维数与信息维数沿海拔梯度的变化趋势基本一致,其值随海拔升高而增大,在海拔2 900 m时达到最大值,之后随海拔的继续升高,其值又开始下降,在海拔3 300 m时达到最小值。第2期张立杰等青海云杉种群分布格局沿海拔梯度分形特征的变化
Abstract:
Fractal properties of spatial pattern of Picea crassifolia population at different altitudes have been studied by fractal theory . The box dimension respectively was 1.706,1.880,1.927,1.640,1.465 and {1.219} respectively from 2 700 m to 3 300 m, which showed that the population occupted the horizontal space powerfully. The information dimension respectively was 1.660,1.684,1.805,1.761,1.470,1.359 and {1.013} from 2 700 m to 3 300 m . Which suggested that the structure was complex and the pattern intersity was higher described. There was a same change of boxcounting dimension and information dimension at different altitudes. Values of boxcounting dimension and information dimension from 2 700 m to 2 900 m increased with the increasing of altitude, reached the maxmum value at 2 900 m, and then began to reduce with increasing of altitude, got a minimun value 3 300 m.

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备注/Memo

备注/Memo:
20050430修回日期:20050905基金项目:国家自然科学基金项目(30230290)、国家重点野外科学观测试验站建设项目、国家林业局“九五”(9630)、“十五”(200109)重点项目作者简介:张立杰(1971),男,甘肃张掖人,硕士,主要从事森林经理研究。=*通讯作者:蒋志荣(1959),男,教授,主要从事林业科学方面的研究。
更新日期/Last Update: 2010-05-04