| 竹蚜空间格局及其抽样技术初步研究 |
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| 引用本文： | 杨秀文,陈国顺.竹蚜空间格局及其抽样技术初步研究[J].福建林学院学报,2000,20(2):172-174. |
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| 作者姓名： | 杨秀文 陈国顺 |
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| 作者单位： | 三明市梅列区林业局,福建,三明,365000 |
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| 摘 要： | 采用聚集度指标等方法测定并分析竹蚜空间格局 ,结果表明 :竹蚜 Astegopteryx bambusae在林间呈聚集分布 ,其个体间相互吸引 ,分布的基本成份是个体群 ,聚集度随种群密度的升高而增大 .同时 ,应用 Iwao统计方法 ,计算了不同种群密度下最适抽样数及序贯抽样
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| 关 键 词： | 竹蚜 空间格局 序贯抽样 |
| 文章编号： | 1001-389X(2000)02-0172-03 |
| 修稿时间： | 1999-05-20 |
A Preliminary Studies on the Spatial Distribution Pattern of Astegopteryx bambusae and its Sampling Technique |
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| YIANG Xu-wen,CHEN Guo-shun.A Preliminary Studies on the Spatial Distribution Pattern of Astegopteryx bambusae and its Sampling Technique[J].Journal of Fujian College of Forestry,2000,20(2):172-174. |
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| Authors: | YIANG Xu-wen CHEN Guo-shun |
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| Institution: | YIANG Xu-wen,CHEN Guo-shun
(Forestry Committee of Meilie County,Shanming 365000) |
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| Abstract: | By means of several sorts of indices of aggergation index, this paper have measured the spatial distribution pattern of Astegopteryx bambusae. The results indicate that the patterns belong to clump distribution; the basic component of spatial distribution is individual crowd; and its aggergation degree will raise with the increasing of the population density. By Iwao's methods, meanwhile, the optimal sampling numbers and the sequential analysis were also made. |
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| Keywords: | Astogopteryx bambusae spatial distribution pattern the sequemtial sampling |
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