Construction of new population geography in the age of population stagnation and decline

这项2003-2005学年的研究项目取得了一些显着的成果。他们将在即将出版的新书中详细发表，但主要发现的一部分可以提如下：由于20世纪70年代中期以来生育率下降导致的人口老龄化，日本总人口从2005年开始减少。它的影响被认为对各种事务产生了重要的影响，但从地理的角度来看，以下几点值得注意。关于家庭/家庭，直到1970年代中期，核心家庭的趋势一直很显著，但最近的趋势被总结为家庭/家庭的多样化。它的空间格局是如此复杂，以至于我们不能简单地将其描述为三大大都市区与非大都市区(外围)的区别。此外，过去几十年生育率下降对移徙(特别是长途移徙)的影响有…更多的表现为迁移率下降和迁移区空间缩小。年轻人向周边地区的回迁(或所谓的“掉头迁移”)没有显示出良好的进展，这表明，在人口减少的时代，很难指望回迁有助于解决这些地区的各种问题。然而，有趣的是，婴儿潮一代的大规模退休越来越近，他们中的一部分可能会回到他们位于外围地区的祖国。从人口地理学的角度来看，这一问题值得S高度重视。此外，对于预计将在弥补人口减少方面发挥重要作用的外来移民，仔细分析他们的移民模式可以发现，他们倾向于对具有竞争力的产业部门的目的地具有强烈的导向，共同伦理和国际婚姻的积累也具有一定的重要性。较少

This research project for the period of 2003-2005 academic years has attained a number of notable results. They will be published in a detailed way in the forthcoming book, but a part of major finding can be mentioned as follows.As a consequence of population aging due to fertility decline since the mid-1970s, the total population of Japan began to decrease in 2005. Its influence is considered to produce important influences on various affairs, but, from geographical point-of-view, the followings are noteworthy. Regarding family/household, trend towards nuclear family has been remarkable until the mid-1970s, but the recent movement is summarized as a diversification of family/household. Its spatial pattern is so complicated that we cannot describe it simply like distinction between the three largest metropolitan areas and the non-metropolitan (peripheral) areas. In addition, impact of declining fertility during the past decades on migration (particularly, long-distance migration) has a … More ppeared in the forms of decline of migration rate and spatial shrink of migration areas. Return migration (or, the so-called "U-turn migration) of young adults to peripheral areas has not shown a favorable progress, suggesting a difficulty in having an expectation that the return migration will contribute to solution of various issues therein in the age of depopulation. In addition, it is interesting to note, however, that massive retirement of the baby boomers is drawing nearer and a part of them may return to their homeland situated in the peripheral areas. It deserves s great attention from the perspective of population geography. Furthermore, with regard to immigrants from abroad who are expected to play an important role of compensating for decrease of majority population, a careful analysis focused on their migration pattern reveals that they tend to have a strong orientation to destinations with competitive industrial sectors and accumulation of co-ethics and international marriage also has a certain importance. Less