File Name: difference between population geography and demography .zip
- Difference Between Population Geography and Demography
- Human population growth and the demographic transition
- Population and Environment
Difference Between Population Geography and Demography
The world and most regions and countries are experiencing unprecedentedly rapid demographic change. The most obvious example of this change is the huge expansion of human numbers: four billion have been added since Projections for the next half century expect a highly divergent world, with stagnation or potential decline in parts of the developed world and continued rapid growth in the least developed regions. Other demographic processes are also undergoing extraordinary change: women's fertility has dropped rapidly and life expectancy has risen to new highs. Past trends in fertility and mortality have led to very young populations in high fertility countries in the developing world and to increasingly older populations in the developed world.
Human population growth and the demographic transition
The interactions between human population dynamics and the environment have often been viewed mechanistically. This review elucidates the complexities and contextual specificities of population-environment relationships in a number of domains. It explores the ways in which demographers and other social scientists have sought to understand the relationships among a full range of population dynamics e. The chapter briefly reviews a number of the theories for understanding population and the environment and then proceeds to provide a state-of-the-art review of studies that have examined population dynamics and their relationship to five environmental issue areas. The review concludes by relating population-environment research to emerging work on human-environment systems. In , the U. National Academy of Sciences published The Growth of World Population 7 , a report that reflected scientific concern about the consequences of global population growth, which was then reaching its peak annual rate of two percent.
PDF | On Jan 1, , P. Hooimeijer and others published Perspectives on between population change and the demand for labour, the supply of differences between countries and especially the variations over the past two decades This volumes shows that applied demography and population geography are.
Population and Environment
After reading this article you will learn about the relation of demography with other sciences. Demography is a science related with population. It studies different aspects of population like its size, density, effects of birth rate, death rate, migration, etc. Sociology is the study of social activities of man and social relations formed out of that. There are many aspects common to demography and sociology, such as size of population, illiteracy, family planning, etc.
Population Geography relates spatial variations in the distribution, composition, migration, and growth of populations to the terrain. Population geography involves demography in a geographical perspective. This often involves factors such as where populations are found and how the size and composition of these populations is regulated by the demographic processes of fertility , mortality , and migration.
Fertility, mortality and migration are principal determinants of population growth or its inverse. In the absence of technological intervention, one might say almost the sole determinants, but improvements in contraceptive techniques, increasing acceptance of abortion, and slackening of some traditional religious and cultural traditions has in many parts of the world reduced the role of fertility. The human female is generally fertile from early teens to about mid-forties. The human male generally remains fertile throughout adulthood, though sperm count and quality diminish from middle-age onward.