The result from population decrease in some central cities is primarily an increase of suburbanization outside the central cities. As populations decline in urban areas, residents often move to surrounding suburban regions in search of better living conditions, housing, and space.
The other options can be less directly linked to population decrease in central cities:
- Migration of the city and the hinterland altogether is not a common outcome; rather, population shifts are typically more localized.
- An increase in urban to rural migrations to the periphery of the hinterland may happen but is not a direct result of central city population decreases. These migrations can depend on various factors, including lifestyle preferences and economic opportunities.
- A decrease in urban poverty is also not a direct or guaranteed result of population decline; urban poverty can persist or even increase due to a variety of socioeconomic factors, including lack of opportunities and resources in shrinking cities.
Therefore, the most accurate answer is the increase of suburbanization outside the central cities.