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大丰自然保护区麋鹿种群密度制约增长的模型(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年05期
Page:
172-174
Column:
研究简报
publishdate:
2013-09-30

Article Info:/Info

Title:
Model of the growth restricted by the density of Milu population in Dafeng Nature Reserve Region
Article ID:
1000-2006(2013)05-0172-03
Author(s):
ZHOU Yuhong HUANG Jiayi
Department of Applied Mathematics, Nanjing Forestry University, Nanjing 210037
Keywords:
Milu population restriction caused by density intensity of damage mathematic model
Classification number :
X36;Q958
DOI:
10.3969/j.issn.1000-2006.2013.05.034
Document Code:
A
Abstract:
A mathematic model of the growth restricted by the population density of Milu population in Dafeng National Reserve Region in this paper and derived the equilibrium values of the population under different intensity of damage. In the meantime, the critical value of the intensity of damage for keeping the population to survive sustainable was presented. It draws the portrait, in the direction field, of solutions (Milu populations) of the model under different intensity of damage by MATLAB software. It was showed that the greater the intensity of damage is, the lower the equilibrium value is. When the intensity of damage was less than the critical value, the equilibrium value would become greater than the basic population, and the Milu population would survive sustainable. However, the equilibrium value will less than the basic population when the intensity of damage was greater than the critical value. This means that the sustainability of Milus survival will be threatened.

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Last Update: 2013-09-30