| 云斑天牛空间分布型与种群密度估计的研究 |
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| 引用本文： | 张世权,杨宝祥,郑丽芳. 云斑天牛空间分布型与种群密度估计的研究[J]. 河北林果研究, 1992, 0(3) |
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| 作者姓名： | 张世权 杨宝祥 郑丽芳 |
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| 作者单位： | 河北林学院林学系(张世权，杨宝祥)，河北林学院林学系(郑丽芳) |
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| 摘 要： | 本文通过对空间分布型的粗估、分布型指数的测定和Iwao聚集集度回归分析,确定云斑天牛在核桃林间的空间分布型为聚集分布的负二项分布型;并在此基础上,建立了种群虫口密度与有虫株率及零样株频率的理论关系式。
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| 关 键 词： | 云斑天牛 空间分布型 有虫株率 零样林频率 种群密度估计 |
STUDIES ON SPACE DISTRIBUTION MODEL AND POPULATION DENSITY ESTIMATION OF BATOCERA HORSFIEDI HOPE |
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| Zhang Shiuuan,Yang Baoxiang,Zheng Lifang. STUDIES ON SPACE DISTRIBUTION MODEL AND POPULATION DENSITY ESTIMATION OF BATOCERA HORSFIEDI HOPE[J]. Hebei Journal of Forestry and Orchard Research, 1992, 0(3) |
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| Authors: | Zhang Shiuuan Yang Baoxiang Zheng Lifang |
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| Affiliation: | Department of Forestry |
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| Abstract: | According to the rough estimation of space distribution, measurement of indexes of distrbution pattern and regresional analysis of I wao crowding level, the space distribution pattern of Batocera horsfied in Juglans regia stand has been demonstrated to be a negative binomial distribution of crowding distribution. On this basis, the correlation equation of population density, percentage of trees with the insect and percentage of trees without the insect is also established. |
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| Keywords: | Batocera horsfied Hope space distribution pattern percentage of trees with insect |
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