An Approach to the Mapping of Changes in the Settling Process

A variety of mapping techniques are used to establish regional differences in the settling process in Irkutsk Oblast and to measure the process in general terms. The most dynamic area, with urban and rural population growth, is the Middle Angara valley, where industrialization has been combined with the development of rural nonfarm places based on resource development and construction. Both urban and rural decline is typical of old mining districts, such as the coal district of Cheremkhovo and the gold area of Bodaybo. In most of Irkutsk Oblast, urban growth has been associated with rural decline. An important factor in the rural settling process has been a reduction of the number of places and an increase of the mean size of places, with remarkable stability in the 200–300 population class of rural places. Analysis of the settling process yields a map that distinguishes population growth, decline or stability in combination with a predominance of particular population size classes among rural places. A previous paper by the author on the mapping of the settling process appeared in Soviet Geography, December 1969.