Theory on prospect of population evolution processes.

Scientia Sinica Pub Date : 1981-03-01
J Song, J Y Yu, G G Li
{"title":"Theory on prospect of population evolution processes.","authors":"J Song,&nbsp;J Y Yu,&nbsp;G G Li","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>This paper is aimed at investigating the dynamic process of population growth applied to population of the People's Republic of China. The discrete and continuous models of population evolution process are revised and adjusted to suit the social conditions of China. The relationship between two kinds of models is established. A series of new formulae of demographic indices are studied and defined as functions on the negative space of generalized solutions of the population equation. Based on survey data collected in China for recent years, the prospect of population growth according to different projections is offered for a one-hundred-year period from now on.</p>","PeriodicalId":21694,"journal":{"name":"Scientia Sinica","volume":"24 3","pages":"431-44"},"PeriodicalIF":0.0000,"publicationDate":"1981-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientia Sinica","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

This paper is aimed at investigating the dynamic process of population growth applied to population of the People's Republic of China. The discrete and continuous models of population evolution process are revised and adjusted to suit the social conditions of China. The relationship between two kinds of models is established. A series of new formulae of demographic indices are studied and defined as functions on the negative space of generalized solutions of the population equation. Based on survey data collected in China for recent years, the prospect of population growth according to different projections is offered for a one-hundred-year period from now on.

分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
种群进化过程前景理论。
本文旨在研究人口增长的动态过程,并将其应用于中华人民共和国人口。对人口演化过程的离散和连续模型进行了修正和调整,以适应中国的社会条件。建立了两种模型之间的关系。研究了一系列新的人口指数公式,并将其定义为人口方程广义解负空间上的函数。根据近年来在中国收集的调查数据,根据不同的预测,给出了今后一百年的人口增长前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
The nature of radiation damage of haemopoietic stem cells under continuous irradiation at low dose rate. [3H-Methyl]-methionine as possible methyl donor for formation of 5'-terminus of in vitro synthesized mRNA of cytoplasmic polyhedrosis virus of silkworm Bombyx mori. The "bolus flow" solution of the plasma between the red blood cells flowing through a capillary. Studies on developmental biology of embryogenesis in higher plants--effect of actinomycin D and cycloheximide on the formation of peroxidase during rice and embryogenesis and germination. The gene frequency of serum albumin variants in Chinese and the electrophoretic characterization of several serum albumin variants.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1