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Position: Home > Articles > The Spatial Distribution Pattern of Phyllobius sp.Larva of Picea asperata and Its Sampling Techniques Journal of Gansu Forestry Science and Technology 2007,32 (3) 7-11

云杉树叶象幼虫空间分布型及其抽样技术研究

作  者:
李进军;马存世;邓军;李丽蓉
单  位:
甘肃白龙江林业管理局舟曲林业局;甘肃民勤连古城国家级自然保护区管理局
关键词:
云杉树叶象;空间分布型;抽样技术
摘  要:
为调查云杉树叶象幼虫在云杉S2-2、S2-3、S2-4苗龄型苗木上空间分布型及开展抽样技术调查研究,在云杉苗木中共设置了30块样地对该幼虫进行了调查。通过应用数理统计方法分析后得出:该幼虫有虫株率分布在云杉S2-2苗龄型苗木上呈对数函数分布趋势;在云杉S2-3、S2-4苗龄型苗木上呈指数函数分布趋势。应用聚集指标法分析得出:该幼虫空间分布型属聚集分布,并通过Iwao回归分析法和Toylor幂法则分析得出,云杉S2-2、S2-3苗龄型苗木上的幼虫个体间相互排斥;云杉S2-4苗龄型苗木上的幼虫个体间相互吸引。同时,应用Iwao的m*-m关系和序贯抽样方法,确定出了该幼虫的理论抽样数及抽样上限值和下限值。
译  名:
The Spatial Distribution Pattern of Phyllobius sp.Larva of Picea asperata and Its Sampling Techniques
作  者:
LI Jin-jun1,MA Cun-shi1,DEN Jun2,LI Li-rong2 (1.Gansu Minqing Liangucheng National Nature Reserve Management Bureau,Minqing Gansu 733300,China;2.Zhouqu Forestry Bureau of Gansu province,Zhouqu Gansu 746300,China)
关键词:
Phyllobius sp.of Picea asperata;the pattern of spatial distribution;sampling techniques
摘  要:
The investigation on larva of Phyllobius sp.was made in the paper through deploying 30 sample plot on the type of S2-2、S2-3、S2-4 seedlings of Picea asperata.The statistical analysis indicated: on the type of S2-2 seedling of Picea asperata,the trees with larva of Phyllobius sp.represented the distribution trend of logarithmic function,whereas on the types of S2-3、S2-4 seedlings,the tree with larva of Phyllobius sp.was exponential function distribution.The determined result of congregative index method showed that the spatial distribution type of the larva was congregative distribution.The result of Iwao regression analysis and Toylor power theorem analysis indicated: the individuals of larva on the S2-2、S2-3 seedlings excluded mutually,while attracted mutually on the S2-4 seedling.At the same time,the theoretical sampling number and its upper limit & lower limit were determined with m*-m relationship of Iwao and sequential sampling method.

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