灾害学论文

发布时间 : 星期六 文章灾害学论文更新完毕开始阅读

灾害学结题论文

人口膨胀问题的分析

The population expansion problem analysis

系 别: 安全工程学院 专业班级:安全工程B096班 学 号: 200910044418 姓 名: 郑茂 指导教师: 王志亮

1

摘要

人口膨胀是指某个国家或地区的人口在短时间之内迅速增长而生产总值没有提高或提高很少。人口膨胀会给社会经济带来负面影响。

大约在100万年前,人类的祖先诞生。数千年前,出现了古埃及、古巴比伦、中国等文明古国。380年前,伽利略提出地圆学说和地球围绕太阳公转的思想,哥伦布、麦哲伦等人进行环球旅行,西班牙、荷兰、英国等向世界各地发展自己的殖民地。 大约200年前,产业革命爆发,人类发明了各种机器,诞生了工业。正是由这一时期开始,人口数量剧增。距今400多年前的日本江户幕府建立初期,世界人口大约为4亿左右,而1990年约为52亿人,据报道,到2050年,全球人口数目将从现在的65亿人上升到90亿人,然而根据罗马尼亚布加勒斯特工艺大学科学家维奥里尔?巴迪司库博士的研究,90亿的人口远远没有抵达地球可以承受的人口极限。巴迪司库博士在下月即将出版的《全球能量问题国际期刊》杂志上宣称,根据他的计算,地球最终可以承受的人口数量,将是现在的20万倍!

尤其是亚洲、非洲、南美洲等发展中国家,人口急剧增多。此外,美国、欧洲、日本等发达国家人口增长缓慢,但工业的发展使资源、能源、食品等的消费量不断增加。 世界人口增长率的急剧上升和人口基数呈指数增长的现状。其重要标志为:人口翻番的时间越来越短,世界人口从5亿增到10亿用了200余年;从10亿增至20亿用了100多年,从20亿到40亿不到70年,估计再翻一番只需35年。本世纪人口在每10年间的增长数也在上升。

第一章,从人类和社会发展的历史,概括论述人口膨胀问题。 第二章,论人口膨胀与环境压力。

第三章,简要介绍及分析当代中国的人口问题。

第四章,人口适度增长对经济的影响和作用,并且采取有效措施,多方向多角度地促进人口增长和经济增长的良性循环

关键字:人口膨胀;生产总值;人口增长率

I

Abstract

The population expansion is to point to a country or region's population in the short time that rapid growth and GDP did not raise or improve rarely. The population expansion will give social economy brings negative effect.

About 1 million years ago, our ancestors was born. Thousands of years ago, appeared in the ancient Egypt, and China ancient civilizations. 380 years ago, Galileo to circle theory and put forward the thought of earth orbit the sun, Columbus, Magellan, to travel, Spanish, Dutch, British and so on to all over the world to develop their own colony.

About 200 years ago, the industrial revolution broke out, human invented all kinds of machine, the industry was born. It is up to this period beginning, population increase. About 400 years ago the Japanese edo aides in the early establishment, the world's population was about 400 million or so, and about 5.2 billion people in 1990, according to the report, by 2050, the

number of the global population from 6.5 billion now risen to 9 billion, however, according to romanian Bucharest technology university scientists d Mr Lille, treasurer of the research, dr buddy, the population of 9 billion is far from reach the earth can bear population limit. Buddy in next month dr treasurer will be published by the global energy problem international journal magazine declared, according to his calculations, the earth eventually to be accepted the population, will is now 200000 times!

Especially in Asia, Africa, South America and other developing countries, population increase rapidly. In addition, the United States, Europe, Japan and other developed countries

population growth is slow, but the development of industry make resources, energy, food consumption rising.

The world population growth rate for the sharp rise in population base and the present

situation of the growing exponentially. The important symbol for: the population of double shorter time, the world's population increased from 500 million to 1 billion with 200 years; With increased from 1 billion to 2 billion for more than 100 years, from 2 billion to 4 billion less than 70, the estimate and double in 35 years. The population growth in the number of every 10 years is also on the rise.

The first chapter, from human and social development history, surveys the population expansion problem.

The second chapter, and of the population expansion and environmental pressure. Chapter 3, brief introduction and analysis of modern China's population.

The fourth chapter, moderate population growth of economic influence and effect, and take effective measures, from different angles, and promote the direction of population growth and economic growth of the benign circulation

Key words: the population expansion;GDP;population growth rate

II

联系合同范文客服:xxxxx#qq.com(#替换为@)