Population biological factors affecting human fertility. Physical factors that affect population distribution include altitude and latitude. An area or country can be densely populated, which means there is a high concentration of persons per square kilometer, or sparsely populated, which means there is a. There are a range of human and natural factors that affect population density. There are many human and physical factors that affect population distribution and population density across the world. The current population of india contributes to 17% of the global population. External temperatures affect all animals, especially those that do not maintain. These factors can be classified into four main groups, namely physical, historical, economical and political. Jun 19, 2015 factors influencing population distribution the distribution of population in the surface of the earth is not uniform due to many factors. Factors affecting patterns of water use the history of predicting water use and related economic activity, population growth, and other variables of importance to water and economic planners shows that precise predictions are often incorrect. Population distribution is affected by environmental and human factors around the world. The factors that affect the mortality rate include the availability and affordability of quality health care and lifestyle habits for example, whether they smoke or do. Distribution of stellers sea eagles haliaetus pelagicus was studied along the.
Ecology is the study of distribution and abundance of living organisms resulting from. Unstable countries tend to have lower population densities as people migrate e. The purpose of this paper, therefore, is to discuss the population distribution and population density as observed in the 2002 population and housing census. Physical and human factors affecting population distribution. Mar 01, 2012 natural factors will affect regional population distribution in a long term, because human beings as a biological creature are dependent on the natural environment to survive.
Factors influencing global population distribution. Factors influencing global population distribution bbc bitesize. Affect a population equally regardless of its density. The distribution of population in continents is most uneven. Physical factors that affect population distribution include altitude and latitude, relief, climate. When we study population distribution we examine why some places have populations which are more tightly packed than others. Countries with frequent natural disasters will often have a high death rate. Population distribution is measured by persons per square kilometer. May 15, 2014 relationships between species richness and affecting factors.
Though there is a lot of improvement in technology but the patterns of population distribution all over the world continues to reflect the influence of varied physical factors. Measures for characterizing settlement patterns, population distribution and accessibility in africa at administrative level 1. Factors affecting the distribution pattern of wild plants. Feb 21, 2012 measures for characterizing settlement patterns, population distribution and accessibility in africa at administrative level 1. This measure emphasizes provinces of highly focal population distribution in dark and those where the population is more dispersed in white. Population of india and the factors affecting population. Factors that cause population growth include increased food production, improved health care services, immigration and high birth rate. The earth contains many different environments with only few parts suitable for human habitation. Physical factors play a vital role in the density and distribution of population. In addition, there may be a high number of people migrating away from the country for fear of their lives resulting in an overall reduction in the countries population. A physical factors physical factors play a vital role in the density and distribution of population. Factors influencing global population distribution global population density population distribution is the spread of people across the world, ie where people live.
Population distribution is affected by environmental factors, natural resources, proximity to water and the ability to grow or obtain food. Pdf population distribution and influencing factors. The geographic limits of a particular taxons distribution is its range, often represented as shaded areas on a map. Population distribution is about how people are spread across the earth. Given below is an article on the topic to aid your ias exam preparation. Patterns of distribution change depending on the scale at which they are viewed, from the arrangement of individuals within a small family unit, to patterns within a population. Abiotic factors influencing the abundance and distribution of marsh marigolds along carp creek larissa hotra, ellen kolasky and jenna voss undergraduate students, universityof ichian biological station, pellston, mi 49769, usa 63 abstract.
The coastal zone is only 17% of the land area of the united states, yet its population outnumbers the interior by 16 million. Factors affecting distribution of population factors affecting distribution of population is an important topic in geography for the upsc civil services exam. Terrain of land is a potent factor which influences the concentration and growth of population. Physical factors that affect population density include water supply, climate, relief shape of the land, vegetation, soils and availability of natural resources and energy. Factors affecting distribution of population vidyamitra. Major factors influencing the distribution and density of population are described as under. The primary task of a population geographer, therefore, is to explain the irregularities in population distribution in terms of the influences of all these factors as an integral part of a dynamic process clarke, 1972. World population is uneven as some places are considered rural and are. Also, all these people are unevenly distributed across 3. Population distribution in 1969 the world s population amounted to be about 3,616 millions, inhabiting more than 6 million square kilo meters of land. Factors reposible for uneven distribution of population in the world.
Lowland plains, flat river valleys and deltas and volcanic areas with fertile soil tend to have high population densities. It is an unnatural cause that changes the population. It increases the population of the place new place, where people migrate in search of good facilities and decreases the population of the area where people migrate from. Physical factors include landform, climate, soil, etc.
These factors have led to overpopulation, which has more negative effects than positive impacts. The social and economic factors affecting population distribution are. Population distribution and density people are unevenly distributed around the world. Physical and human factors affecting global population distribution.
The question considered herehow does population growth affect the direction and magnitude of economic change today as world population approaches 6 billionis germane to a key argument invoked to defend international population assistance programs since their inception in the early 1960s. Factors affecting population growth 67 factors affecting population growth notes i. Factors which effect the worlds population geography as. Just as the birth of new people increases the population size, deaths decrease it. Percentage of land surface concentrating 90% of population. Around 70% of the earths surface is covered in water, leaving only 30% as land. Reproduction is a quintessentially biological process, and hence all fertility analyses must consider the effects of biology. Usa good job opportunities encourage high population densities, particularly in large cities in medcs and ledcs around the world. The world population today is over 7 billion and the number is increasing with each passing year. In any study of population distribution, it is necessary identify factors which determine the way in which it is distribution within an area of a country, or in a country as well as in continent in which that country lies, or in a region, or in the world considered as a whole. Pdf population distribution and influencing factors based. Groups of people want to live close to each other for security e. Factors influencing population distribution and density in southern africa. Migration affect the population of the two particular areas.
Socialareas will have a high population density if they are located close to good communications links. A winter freeze may kill a constant fraction of potato leafhoppers in a peanut field regardless of the total number of leafhoppers japanese beetle larvae survive well with lots of summer rain temperature, humidity, fires, storms, dissolved oxygen for aquatic species. Density dependent and density independent mortality factors a. Task on factors affecting population density carefully read the material above. This population density increased to 273 persons per square mile by 1994, and is expected to reach 327 by 2015. Relationships between species richness and affecting factors. Such factors, in rough chronological order, include. Key natural impacting factors of chinas human population. This area contains a large land area and a relatively temperate climate. Or sometime population distribution can be described as being even or uneven, scattered or concentrated in a particular places. Factors influencing the distribution and density of population in india are as follows.
Factors influencing global population distribution bbc. What are the factors responsible for population growth. There are many factors contributing to the unbalanced population distribution, including natural condition, social and economic development, and transportation infrastructure. On one hand the population of india is highly concentrated in some pockets such as highly urbanized and industrialised areas and areas of high agricultural productivity, while on. The main factors that affect distribution of population are natural resources, climatic conditions, soils, cultural factors, age of human settlement, industrial development and means of transport and communication. Factors reposible for uneven distribution of population in the world 1. The distribution of the earths population across the globe is uneven. However, the geographical distribution of population is greatly unbalanced.
The climate may effect the death rates of a county. May 07, 2020 factors affecting population distribution in the world are being discussed for the purpose of revision of b. One of the most important aspects of indias population is its uneven distribution. A bigger population may have more intraspecific competition, while a smaller population may have more interspecific competition. Use the information to create a clear, visually appealing mindmap showing the physical and human factors affecting population density. Factors that affects population distribution your article library.
Population distribution is uneven since some areas are densely settled while others are not. Migration helps to balance the population distribution. Factors affecting distribution of population youtube. In the course of discussion, an attempt has been made to show the implications of the observed population distribution and density features. Factors affecting the distribution of animal and plant species by debbie and valeria temperature water temperatures affect the concentration of animals.
The world population distribution density and growth. The population density in eastern africa is 67 per km 2 173 people per mi 2. It goes without saying that populations are scattered across space. Factors affecting distribution of population is an important topic in geography for the upsc civil services exam. Physical factors that affect population distribution include altitude and latitude, relief, climate, soils, vegetation.
In rural areas, most people make direct use of the surrounding land to support themselves through agriculture, hunting and mining. What are the factors affecting population distribution. Economic some of the biggest growth regions in the uk, have grown as a result of the excellent economic conditions. Population distribution refers to the way people are spread out on the land. Jan 25, 2019 a key factor affecting the growth of the population is the death, or mortality, rate. What are some factors that affect population density. Population population geographical distribution and urbanization. Abiotic factors influencing the abundance and distribution of. Species distribution is the manner in which a biological taxon is spatially arranged. A study of population distribution school learning resources. A poorly developed economy is often unable to support large populations and people end up living in poor housing e. In the case of cambodia, civil unrest in the past had forced a large number of people to migrate from one province to another. Population distribution density change internet geography. Factors influencing population distribution and density in.
A bigger population may be more vulnerable to diseases and parasites. According to the 2001 census, uttar pradesh is the highest populated state in india with a total number of 166 million people. Abiotic factors influencing the abundance and distribution. Fiske 1911 were the first to base a concept of population. Physical factors that affect population density include water supply, climate, relief shape of the land, vegetation, soils and availability of. Factors affecting population distributiondensity free. According to him, a little more than 56 per cent of the worlds population lives. It is measured as the number of people per square kilometer. Population distribution is how people are dispersed over a given area.
For national 5 geography revise the ways in which population growth and distribution is affected by physical and human factors. Areas in which populations are small usually lack one of these four qualities. What factors affect population density and distribution. Habitat preferences and factors affecting population density and breeding. Population population biological factors affecting human fertility. The map above shows that world population distribution is uneven. Physical factors affecting population distribution in.
What are the factors affecting the distribution of population. Module 9 notes human resource development in india 240 population density, distribuion and growth in india geography identify factors responsible for rapid growth of population. Physical factors affecting population distribution in india. Population densities are highest along the east coast, especially in the northeast. Population geographical distribution and urbanization. Factors affecting the distribution of animal and plant. Apart from physical factors several social, demographic, economic, political and historical factors affect population distribution. A key factor affecting the growth of the population is the death, or mortality, rate. Factors affecting population distributiondensity dubai is a thriving settlement in the midst of the desert. The typical measure of population in relation to land area, that of population density, is often a meaningless one, since different areas vary considerably in their value for agricultural or other human purposes. Identify the image from the first column, give it a suitable factor title and then explain how it influences population distribution. Affect a population more or less as the population is bigger.
Request pdf key natural impacting factors of chinas human population distribution china is a large country with a population of 1. Normally speaking, plain areas encourage higher density of population as compared to mountain regions. The current study provides theoretical evidence for the soil as an essential factor affect to population distribution. In most countries of the world the geographic distribution of the population is not even with varying degrees of.
Eastern africa ranks number 1 in africa among subregions ranked by population. The species richness of plant species with extremely small populations decreased with the increasing levels of road quality, agricultural activities, and surrounding population density, but increased with increasing distance of population and road figure 3a, 3b. Some areas have a high population density while others have a low population density. What are the factors which affect the distribution of population. Analysis of the problems and recommendations for research and training. Areas of high population density tend to be located between 20 and 60n. Chapter 2 spatial distribution and density of population. Usa good job opportunities encourage high population densities, particularly in large cities in.
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