抄録
This study aims to clarify the structure of population changes and actual circumstances of visitation for mutual aid in villages within urbanization control areas (UCAs) from a case study of Nagano City. Knowledge of this paper runs as follows: 1) There are 3 structual types of population changes in villages within UCAs. 2) Mechanism of population change in old families are clarified in both cases of population increase and decrease. 3) Difference of population change between villages is caused by superiority on dwelling comfortability in villages. 4) Visitation for mutual aid between within and outside villages are kept by visitors near their villages. In declined villlages this visitation supplements the loss of dairy service within a family.
