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Population reports. Series J, Family planning programs最新文献

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Twenty-two dimensions of the population problem. 人口问题的22个方面。
L R Brown, P L McGrath, B Stokes
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引用次数: 0
World population trends: signs of hope, signs of stress. 世界人口趋势:希望的迹象,压力的迹象。
Pub Date : 1976-10-28 DOI: 10.1017/s0084255900022245
L. Brown
During the 1970s some changes have occurred in the area of population policies and trends. There has been both progress and failure. The growth in world populaton has begun to slow in both developed and developing nations. The apparent decline in the birthrate of China between 1970-1975 is the most rapid of any country on record and may be regarded as family plannings greatest success story. It reveals what a government committed to reducing fertility can accomplish when it deals with the problem on several fronts simultaneously. Another hopeful sign is the decline by 1/3 in the U.S. population growth rate between 1970-1975. Although most of the slowdown in the global population growth stems from declining birthrates in some poor countries population growth is being periodically checked by hunger-induced rises in death rates. The recent upturns in the national death rates represent a reversal of postwar trends. In some situations population growth now acts as a double-edge sword simultaneously contributing to growth in food demand and to reduced food output. It has become clear during the 1970s that land-based food systems can give as did oceanic fisheries under intense pressure. Population growth along with the lesser effect of rising affluence has pushed food consumption ahead of production in recent years and has become a major preoccupation for the entire world. In a world without an adequate system of food reserves increasing world food prices translate into increasing death rates among the poorest people. Crop failure in a rich country has an economic impact but in a poor country it can also have a measurable demographic impact. Attention is specifically focused on population trends 1970-1975; countries that are achieving or approaching stability; the tragic rise of death rates; and the population prospect.
在1970年代,人口政策和趋势方面发生了一些变化。有进步也有失败。世界人口的增长在发达国家和发展中国家都开始放缓。1970年至1975年间,中国出生率的明显下降是有记录以来速度最快的,可能被视为计划生育最成功的故事。它揭示了一个致力于降低生育率的政府在同时处理几个方面的问题时所能取得的成就。另一个有希望的迹象是美国人口增长率在1970-1975年间下降了三分之一。虽然全球人口增长放缓的主要原因是一些贫穷国家出生率的下降,但人口增长正受到饥饿引起的死亡率上升的周期性抑制。最近全国死亡率的上升代表了战后趋势的逆转。在某些情况下,人口增长现在是一把双刃剑,同时促进粮食需求的增长和粮食产量的减少。在20世纪70年代,人们已经清楚地认识到,在巨大的压力下,陆地粮食系统也会像海洋渔业一样做出让步。近年来,人口增长以及财富增长的影响较小,推动了粮食消费超过了生产,并成为全世界关注的主要问题。在一个没有充足粮食储备体系的世界上,世界粮食价格上涨导致最贫穷人口死亡率上升。在富裕国家,作物歉收会产生经济影响,但在贫穷国家,它也会产生可衡量的人口影响。特别注意1970-1975年的人口趋势;稳定国家:正在实现或接近稳定的国家;死亡率的悲剧性上升;以及人口前景。
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引用次数: 26
Twenty-two dimensions of the population problem. 人口问题的22个方面。
Pub Date : 1976-07-01 DOI: 10.2307/1531902
L. Brown, P. L. McGrath, B. Stokes
An examination of the economic social ecological and political facets of overpopulation portray the stresses and strains associated with continued population growth in a world already inhabited by four billion people. A lack of facilities and the effects of poor nutrition on intelligence make illiteracy especially common in areas of high population growth. Overfishing and pollution of oceans has lowered the productivity of oceanic fisheries and even at maximum levels oceanic production cannot meet food demands. Access to recreation areas is becoming increasingly limited. Waste has increased to a point where the ecosystem can no longer readily break it down and absorb it and pollution results. Inflation caused when demand exceeds supply is a result of large population gains. A growing share of all illness and death in the world today is directly attributable to human changes in the environment stemming from population growth. The recent downturn in per capita grain consumption the inability to rebuild grain reserves the acceleration of world dependence on North American grain exports and overgrazing are direct results of growing demands for food. Providing decent living quarters for a rapidly increasing population is extraordinarily difficult. Increasing amounts of carbon dioxide and dust in the atmosphere have changed the climate of large regions of the earth. The rural exodus has increased urbanization and crowding in both rural and urban areas has deleterious effects. Large population growth offsets gains in economic growth lowering the per capita income. Demand for land for agriculture and wood for fuel has caused serious deforestation. Energy and mineral demands cannot be met and water is in short supply. Health services cannot keep up with population growth. Individual freedom is compromised when limitations and guidelines must be imposed by the government for the common good.
对人口过剩的经济、社会、生态和政治方面的研究表明,在一个已经有40亿人口居住的世界上,人口继续增长所带来的压力和紧张。缺乏设施和营养不良对智力的影响使得文盲在人口高增长地区尤为普遍。过度捕捞和海洋污染降低了海洋渔业的生产力,即使在最高水平上,海洋生产也无法满足粮食需求。进入娱乐场所的机会越来越有限。废物已经增加到生态系统不能再轻易分解和吸收的程度,污染就产生了。当需求超过供给时导致的通货膨胀是大量人口增长的结果。当今世界上越来越多的疾病和死亡直接归因于人口增长对环境造成的人类变化。最近人均粮食消费量的下降、无法重建粮食储备、世界对北美粮食出口的依赖加速以及过度放牧都是粮食需求不断增长的直接结果。为快速增长的人口提供体面的住所是非常困难的。大气中不断增加的二氧化碳和灰尘已经改变了地球上大部分地区的气候。农村人口外流加快了城市化进程,农村和城市地区的拥挤都产生了有害影响。大量的人口增长抵消了经济增长的收益,降低了人均收入。对农业用地和燃料木材的需求造成了严重的森林砍伐。能源和矿产需求得不到满足,水资源短缺。卫生服务跟不上人口增长的速度。当政府为了公共利益必须施加限制和指导时,个人自由就会受到损害。
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引用次数: 42
Adolescent fertility risks and consequences. 青少年生育的风险和后果。
W B Hunt
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引用次数: 0
Postcoital contraception--an appraisal. 性事后避孕——一种评估。
W Rinehart
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引用次数: 0
Training nonphysicians in family planning services and a directory of training programs. 对非医生进行计划生育服务培训和培训项目目录。
J Wortman
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引用次数: 0
Breast-feeding--aid to infant health and fertility control. 母乳喂养——有助于婴儿健康和控制生育。
R Buchanan
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引用次数: 0
Advanced training in fertility management. 生育管理方面的高级培训。
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引用次数: 0
World fertility trends, 1974. 世界生育率趋势,1974年。
R T Ravenholt, J Chao
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引用次数: 0
Family planning programs and fertility patterns. 计划生育和生育模式。
R T Ravenholt, J W Brackett, J Chao
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引用次数: 0
期刊
Population reports. Series J, Family planning programs
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