529 / 2019-02-28 19:18:37

A Study on Types of Settlements from the Viewpoint of Population Dynamics

village,population,village unit

全体主题 > Spatial data collection, Analysis, and Visualization

１.Introduction
Currently, in addition to 47 prefectures and 1724 municipalities in Japan there are about 160,000 village units. The unit of this settlement is a unit of population distribution that has done primary industry. However, now, through the "high economic growth period", many villages become urbanized, while the population of the villages is maintained at a certain number, the population of the primary industry is decreasing. As of 2015, 51.8% of the population of Japan lives in the Three Major Metropolitan Areas, mainly Tokyo, Nagoya and Osaka, which account for 8.5% of Japan's area.
In Japan, the declining birthrate and the aging of society progress, the population decline is progressing. Furthermore, in addition to the declining birthrate and the declining population, declining population is becoming noticeable in middle and mountainous areas other than urban areas, causing various problems. There are also Unmanned Villages where the village population has become 0 people.
In addition to such urbanized settlements and unattended settlements, there are depopulated villages whose population has declined and maintenance of the settlement is difficult.
Therefore, the aim was to classify villages from recent population dynamics and obtain basic knowledge of village reorganization.

2. Research Method
Based on the national census, we analyzed the cluster by population, covering all the villages. From the population distribution of the 500 meter mesh by the 4th census of 1995, 2005, 2010, 2015, we re-tabulated to the village unit using the Geographic Information System (GIS). Analysis items were based on population density, aging rate, and population change rate of each village.

3.Summary
Cluster analysis was conducted based on the population based on the entire settlement and classified. In the type, it was divided into a population-stable village and a decreasing village, and a village where the population slightly increased was seen. In a village with a small population size, it is necessary to aggregate and collaborate with surrounding villages while considering geographical conditions.