1) population growth model
人口增长模型
1.
In this paper, we discuss a delay population growth model and obtainsufficient conditions under which the equilibrum point is a global attractor or uniformlystable.
本文考虑一个具有时滞的人口增长模型,得到保证其平衡点为全局吸引或一致稳定的若干充分条件,所得结果不仅推广了Sugie的新近结果,而且也解决了Kuang提出的一个公开问题。
2) Logistic population increase model
Logistic人口增长模型
1.
Primal chaos data system and feedback control research of Logistic population increase model;
Logistic人口增长模型的混沌数据系统及反馈控制研究
3) population growth
人口增长
1.
Relationships among arable-land area change,economic development and population growth in Yantai city;
烟台市耕地数量变化与经济发展人口增长关系的研究
2.
Three models for predicting population growth——Theoretical foundation,application methods,and revised expressions;
人口增长的常用数学模型及其预测方法——兼谈对Keyfitz双曲增长等模型的修正与发展
3.
A experimental analyse on the economical and educational factors influencing Chinese population growth;
我国人口增长的经济教育因素的实证分析
4) population increase
人口增长
1.
Relationships between population increase and desertification in Maomusu Sandy Land were analyzed and the driving forces on desertificaton were revealed in this paper.
以毛乌素沙区为例 ,分析沙区几十年来人口增长与荒漠化发展之间的关系 ,揭示荒漠化发展的人为驱动力。
2.
This paper analyzes the occurring of land conversion with burning theory,and points out that land conversion is results from population increase,resource endowment,economic development,framland s low comparative economic benefit,unreasonable distribution of framland s income,vague land property right,shortsighted activities of local government,the first revolution of urban land .
论文运用社会燃烧理论分析了农地非农化过程的发生,认为农地非农化是在“燃烧物质”——人口增长、资源禀赋、经济发展,“助燃剂”——农地比较经济效益低、农地非农化收益分配不合理、土地产权、权能模糊和地方政府的短期行为,“点火温度”——城市土地使用制度的第一次革命和快速城市化下共同作用的结果。
3.
Abstract:In this article the author analyses in a relatively comprehensive way the present development of Guangxi’s population and its tendency,and the unbalanced development of population increase,resources,environment,and economic development and it proposes solutions to those problems.
该文较全面分析了广西人口发展现状、趋势及人口增长与资源、环境、经济发展的冲突, 并提出相应协调发展的对策。
5) changes of the type of population growth
人口增长类型转变
6) Population growth rate
人口增长率
1.
The population growth rate and GDP growth rate by province in China in 1990-1992,1992-1994,1994-1996 and 1996-1998 are analyzed.
分析了1990-1992、1992-1994、1994-1996和1996-1998年中国省级人口增长率和GDP增长率,1990-1998年总的趋势是人口增长率有所下降,GDP增长率也有所下降,人口增长率高的地区大多数是比较发达地区。
2.
This paper analyzes the population growth rate and the total population,then modifies the logistic model,and establishes a logistic model.
本文分析了人口增长率与人口总量的关系,进而修正阻滞增长模型,建立一个改进的阻滞增长模型,对未来半个世纪内的中国人口总量进行了预测。
补充资料:人口机械增长
一国或一地区在一定时期内(通常为一年)人口迁入超过迁出而引起的增长。人口机械增长受社会因素影响。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条