What are the main causes of urban natural increase?

The main causes of urban natural increase are high birth rates and declining death rates, often due to improved healthcare and living conditions.

Urban natural increase refers to the growth in population that occurs when the number of births in a city exceeds the number of deaths. This is often a result of high birth rates and declining death rates, which can be attributed to a variety of factors.

High birth rates in urban areas can be attributed to several factors. Firstly, many people migrate to cities in search of better opportunities, and these migrants are often young adults in their reproductive years, leading to a higher number of births. Additionally, cultural factors can also play a role. In many societies, having more children is seen as desirable, and this can contribute to higher birth rates.

On the other hand, declining death rates in cities can be attributed to improved healthcare and living conditions. Urban areas often have better access to healthcare services, including hospitals and clinics, which can lead to lower death rates. Improved living conditions, such as access to clean water and sanitation, can also contribute to lower death rates by reducing the incidence of diseases.

Furthermore, advancements in medical technology and healthcare practices have also contributed to declining death rates. Vaccinations, antibiotics, and other medical interventions have significantly reduced the incidence of many diseases that were once major causes of death.

However, it's important to note that urban natural increase can also lead to challenges, such as overcrowding, strain on resources and infrastructure, and increased environmental pollution. Therefore, managing urban natural increase is a key issue for urban planners and policymakers.

In conclusion, urban natural increase is primarily driven by high birth rates and declining death rates. These trends are influenced by a variety of factors, including migration patterns, cultural norms, access to healthcare, living conditions, and advancements in medical technology.