Ch#6
Population
LEARNING OBJECTIVES
Students will be able to:
Describe Population Distribution
Define Population Density
Explain factors affecting population Density
Elaborate factors that repel and attract settlers
Describe population distribution and density of Pakistan
Describe age and sex structure of Pakistan
Population Distribution and Density
People are unevenly distributed around the world. The difference in distribution is measured by comparing population density that is, the number of people per km2. Population density is determined less by economic development than by environmental factors which make an area more or less attractive to settlers.
Population Distribution
The way in which people are spread across a given …show more content…
Figure 1 Population density map
Factors affecting population density
There are a number of different environmental and human factors which affect why people are not spread evenly across the world.
The world is made up of a vast number of contrasting environments. Some areas have a temperate or mild climate, others are covered in ice. Some areas are fertile: when referring to soil rich in nutrients, others are desert. Some of these environments attract settlers while other environments repel settlers as shown in the table below.
Physical Factors High Density Low Density
Relief
(shape and height of land) Low land which is flat e.g. Ganges Valley in India High land that is mountainous e.g. Himalayas
Resources Areas rich in resources (e.g. coal, oil, wood, fishing etc.) tend to densely populated e.g. Western Europe Areas with few resources tend to be sparsely populated e.g. The Sahel
Climate Areas with temperate climates tend to be densely populated as there is enough rain and heat to grow crops e.g. UK Areas with extreme climates of hot and cold tend to be sparsely populated e.g. the Sahara …show more content…
Information is included by sex and age group (0-14 years, 15-64 years, 65 years and over). The age structure of a population affects a nation's key socioeconomic issues. Countries with young populations (high percentage under age 15) need to invest more in schools, while countries with older populations (high percentage ages 65 and over) need to invest more in the health sector. The age structure can also be used to help predict potential political issues. For example, the rapid growth of a young adult population unable to find employment can lead to unrest.
Population Pyramid of Pakistan
A population pyramid illustrates the age and sex structure of a country's population and provides insights about political and social stability, as well as economic development. The population is distributed along the horizontal axis, with males shown on the left and females on the right. The male and female populations are broken down into 5-year age groups represented as horizontal bars along the vertical axis, with the youngest age groups at the bottom and the oldest at the top. The shape of the population pyramid gradually evolves over time based on fertility, mortality, and international migration
Population
LEARNING OBJECTIVES
Students will be able to:
Describe Population Distribution
Define Population Density
Explain factors affecting population Density
Elaborate factors that repel and attract settlers
Describe population distribution and density of Pakistan
Describe age and sex structure of Pakistan
Population Distribution and Density
People are unevenly distributed around the world. The difference in distribution is measured by comparing population density that is, the number of people per km2. Population density is determined less by economic development than by environmental factors which make an area more or less attractive to settlers.
Population Distribution
The way in which people are spread across a given …show more content…
Figure 1 Population density map
Factors affecting population density
There are a number of different environmental and human factors which affect why people are not spread evenly across the world.
The world is made up of a vast number of contrasting environments. Some areas have a temperate or mild climate, others are covered in ice. Some areas are fertile: when referring to soil rich in nutrients, others are desert. Some of these environments attract settlers while other environments repel settlers as shown in the table below.
Physical Factors High Density Low Density
Relief
(shape and height of land) Low land which is flat e.g. Ganges Valley in India High land that is mountainous e.g. Himalayas
Resources Areas rich in resources (e.g. coal, oil, wood, fishing etc.) tend to densely populated e.g. Western Europe Areas with few resources tend to be sparsely populated e.g. The Sahel
Climate Areas with temperate climates tend to be densely populated as there is enough rain and heat to grow crops e.g. UK Areas with extreme climates of hot and cold tend to be sparsely populated e.g. the Sahara …show more content…
Information is included by sex and age group (0-14 years, 15-64 years, 65 years and over). The age structure of a population affects a nation's key socioeconomic issues. Countries with young populations (high percentage under age 15) need to invest more in schools, while countries with older populations (high percentage ages 65 and over) need to invest more in the health sector. The age structure can also be used to help predict potential political issues. For example, the rapid growth of a young adult population unable to find employment can lead to unrest.
Population Pyramid of Pakistan
A population pyramid illustrates the age and sex structure of a country's population and provides insights about political and social stability, as well as economic development. The population is distributed along the horizontal axis, with males shown on the left and females on the right. The male and female populations are broken down into 5-year age groups represented as horizontal bars along the vertical axis, with the youngest age groups at the bottom and the oldest at the top. The shape of the population pyramid gradually evolves over time based on fertility, mortality, and international migration