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林业科学 ›› 1996, Vol. 32 ›› Issue (1): 86-91.

• 问题讨论 • 上一篇    下一篇

关于Taylor幂法则的讨论

兰星平   

  1. 贵州省森林病虫检疫防治站, 贵阳 550001
  • 收稿日期:1994-05-07 出版日期:1996-01-25 发布日期:1996-01-25
  • 基金资助:
    贵州省科学基金项目研究内容之一

DISCUSSION ABOUT TAYLOR'S POWER LAW

Xingping Lan   

  1. Forest Pest Quarantine and Control Station of Guizhou Province Guiyang 550001
  • Received:1994-05-07 Online:1996-01-25 Published:1996-01-25
  • Supported by:
    贵州省科学基金项目研究内容之一

摘要:

对Taylor幂法则(V=amb)在检验种群空间分布型中所存在的问题进行了研究, 结果表明:回归参数ab的不同组合形式与分布型的判断准则, 并非完全取决于ab的数值大小, 而是在m的取值区间〔ma, mb〕内, 比值V/m=amb-1是否偏离1来确定的。在logm×logV的直角坐标系中, ab的组合数有九种; ab作为控制Vm变动程度的参数, 本身均不具备特定的生物学含义。当样方大小改变, 而样方中的虫体数不成等比例的增加或减少时, 参数b的取值也随之改变; 当m≠1时, 可用来判断种群的分布型, 其等价于的判断准则, 当m=1时, V=a, 直线与lgm轴垂直, 此时b的存在无意义。

关键词: Taylor幂法则, 生物种群, 空间分布型

Abstract:

The problems of Taylor's power law in examing insect population spatial pattern, were systematically studed. The results were as follows: ①the different combination types of a and b (the parameters in V=amb), and the law of spatial patterns of insect population were not completely determined by the values of a and b, but by the values of V/m=amb-1 within the limits [ma, mb], the combination types of a and b are nine. ②the parameters of a and b were used for decribing the relation between V and m, none of them do not possess particular bionomics meaning, the b is not the aggregation index to describing insect population inherent charater too. When the sample size in the sampling quadrat are changed, and Xij'/Xija, the value of b is certain changed too. ③ when the m≠1, the b=(ar>, or < ) 1-lg(a)/lg(m) can be used to examinig insect population spatial patterns.

Key words: Taylor's model, Live thing population, Spatial pattern