[Objective] The paper was to study the chaos characteristic of population quantity sequence of adult Monochamus alternatus in forest during 2006-2010.[Method] Power spectral analysis method,correlation dimensionality ...[Objective] The paper was to study the chaos characteristic of population quantity sequence of adult Monochamus alternatus in forest during 2006-2010.[Method] Power spectral analysis method,correlation dimensionality and embedding dimensionality,and the maximum Lyapunov index method were adopted in the paper,respectively.[Result] The results from different chaos determination methods all showed that the population quantity sequence of adult M.alternatus among forest had chaos characteristic,belonging to chaos time sequence;when the delay time τ=5 and embedding dimensionality m=15,the correlation dimensionality in the corresponding phase space D=2.807 6,and the maximum Lyapunov index λ1=0.561 3.[Conclusion] The result provided the reference for monitoring and forecast of M.alternatus.展开更多
基金Supported by Xianju Technology Bureau "Numerical Prediction of Major Forestry Pests in Xianju County" (200628)~~
文摘[Objective] The paper was to study the chaos characteristic of population quantity sequence of adult Monochamus alternatus in forest during 2006-2010.[Method] Power spectral analysis method,correlation dimensionality and embedding dimensionality,and the maximum Lyapunov index method were adopted in the paper,respectively.[Result] The results from different chaos determination methods all showed that the population quantity sequence of adult M.alternatus among forest had chaos characteristic,belonging to chaos time sequence;when the delay time τ=5 and embedding dimensionality m=15,the correlation dimensionality in the corresponding phase space D=2.807 6,and the maximum Lyapunov index λ1=0.561 3.[Conclusion] The result provided the reference for monitoring and forecast of M.alternatus.
