作业帮马上交论文了.随着人口的增加,自然资源,环境条件等因素对人口继续增长的阻碍作用越来越明显.如果当人口较少时人口增长率还可以看作常数的话,那么当人口增长到一定数量后,增长率就会
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/13 03:40:25
马上交论文了.随着人口的增加,自然资源,环境条件等因素对人口继续增长的阻碍作用越来越明显.如果当人口较少时人口增长率还可以看作常数的话,那么当人口增长到一定数量后,增长率就会
马上交论文了.
随着人口的增加,自然资源,环境条件等因素对人口继续增长的阻碍作用越来越明显.如果当人口较少时人口增长率还可以看作常数的话,那么当人口增长到一定数量后,增长率就会随着人口的继续增加而减少.许多国家人口增长的实际情况完全证明了这点.为了生存及人类文明程度的不断提高,顺其自然地会采取有效措施来控制人口的增长,使增长率成为一个递减数,然而可供人类生存的自然资源,环境等条件也为人口数量的最大值给予了极大的限制.这就导致了比较适合于人口发展规律的新数学模型产生.
马上交论文了.随着人口的增加,自然资源,环境条件等因素对人口继续增长的阻碍作用越来越明显.如果当人口较少时人口增长率还可以看作常数的话,那么当人口增长到一定数量后,增长率就会
With the population increase, it is more and more noticeable that those factors including nature resource and environment is prevent the population from growing continously. If the population growth rate could be regarded as a constant when the population is relatively small. Contrastly, when the population reaches a certain number, the growth rate will reduce with the subsequent population increase. The facts of many nations about population increase perfectly proved this.
With a purpose of surviving as well as human civilation advancement, naturely effective ways will taken to control the population growth, resulting to the drop in growth rate. Furthermore, the available nature resource and environment factors also significantly limit the miximum number of population. It leads to the birth of new mathematical model which fits the new rules of population change to some extent.
-------------------------------------------------------------------------------------------------------------------------
供您参考!祝您论文写作顺利!