山楂叶螨种群空间格局及其应用的研究Ⅱ．成螨种群密度综合估计及其抽样技术

应用生态学报 ›› 1994, Vol. 5 ›› Issue (2): 163-166.

山楂叶螨种群空间格局及其应用的研究Ⅱ．成螨种群密度综合估计及其抽样技术

张庆国, 徐丽, 邹运鼎

安徽农业大学, 合肥 230036

收稿日期:1992-08-13 修回日期:1992-10-20 出版日期:1994-04-25 发布日期:1994-04-25
基金资助:
安徽农业大学青年科学基金

Spatial pattern of hawthorn spider mite population and its application Ⅱ.Synthetical es timation of population density or adult mites and its sampling techinique

Zhang Qingguo, Xu Li, Zou Yunding

Anhui Agricultural University, Hefei 230036

Received:1992-08-13 Revised:1992-10-20 Online:1994-04-25 Published:1994-04-25

摘要/Abstract

摘要： 本文结合Iwao零频率法和Gerrard阈限密度法,提出一种改进的种群密度估计方法──“综合阈限密度估计法”,并由此探讨了苹果树上山楂叶螨成螨的密度估计及其抽样技术。采用零样频率来估计成螨的平均密度,并得到用概率保证的理论抽样数模型。比较结果表明,零频率法所需的理论抽样数少于直接计数法。综合阈限密度估计法的拟合效果更为显著。

关键词: 山楂叶螨, 种群密度估计, 抽样技术

Abstract: In this paper, an improved method of estimating population density──" Synthetical threshold density method" is put forward through combining Iwao's zero frequency method with Gerrard's threshold density one,by which, the density estimation of adualt mites on apple tree and its sampling technique are approached. The mean density of adult mites is estimated by zero frequency method, and theoretical models of sampling numbers are obtained.It's shown that theoretical sampling numbers needed for zero frequency method are less than those for direct counting method.The fitting effect of synthetical threshold density method is better than that of Gerrard's.

Key words: Hawthorn spider mite, Estimation of population density, Sampling technique

张庆国, 徐丽, 邹运鼎. 山楂叶螨种群空间格局及其应用的研究Ⅱ．成螨种群密度综合估计及其抽样技术[J]. 应用生态学报, 1994, 5(2): 163-166.

Zhang Qingguo, Xu Li, Zou Yunding . Spatial pattern of hawthorn spider mite population and its application Ⅱ.Synthetical es timation of population density or adult mites and its sampling techinique[J]. Chinese Journal of Applied Ecology, 1994, 5(2): 163-166.

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