Lerch Mathias
Ecole Polytechnique Fédérale de Lausanne (EPFL) Lausanne Switzerland.
Popul Space Place. 2023 Jan;29(1):e2621. doi: 10.1002/psp.2621. Epub 2022 Oct 18.
In high-income countries, migration redistributed populations from congested city centres into the sparsely populated outskirts, raising challenges to environmental and population health and the conservation of biodiversity. We evaluate whether this periurbanisation process came to a halt in Switzerland by expecting a decline in internal migration and a renewed residential attractiveness of urban agglomeration centres (i.e., re-urbanisation)-two recent trend changes observed in Europe. Relying on data from censuses, registers and surveys, we describe trends in the intensity, geography and sociodemographic differentials of migration across consistently defined urban agglomeration density zones between 1966 and 2018. Although the overall intensity of migration declined, the rate increased among the working age population in part because of the societal diffusion of tertiary education. The dominant urban-bound migration flows are increasingly confined within agglomerations over time. After the diffusion of periurbanisation down the city hierarchy between 1966 and 1990, we observe the emergence of re-urbanisation in some agglomerations and sociodemographic groups around 2000. However, this phenomenon has been temporarily inflated by period-specific transformations in Swiss society. More recently, the process of periurbanisation intensified again and expanded more and more beyond official agglomeration borders.
在高收入国家，人口迁移将人口从拥挤的城市中心重新分布到人口稀少的郊区，给环境、人口健康以及生物多样性保护带来了挑战。我们通过预期内部迁移的减少以及城市群中心地区（即再城市化）重新具备的居住吸引力——欧洲最近观察到的两种趋势变化，来评估瑞士的这种城市周边化进程是否已停止。依靠人口普查、登记册和调查数据，我们描述了1966年至2018年期间在始终如一定义的城市群密度区域内，迁移在强度、地理分布和社会人口统计学差异方面的趋势。尽管迁移的总体强度下降了，但劳动年龄人口中的迁移率有所上升，部分原因是高等教育在社会中的普及。随着时间的推移，主要的向城市迁移流动越来越局限于城市群内部。在1966年至1990年期间城市周边化在城市层级中扩散之后，我们观察到2000年左右在一些城市群和社会人口群体中出现了再城市化现象。然而，这一现象因瑞士社会特定时期的变革而暂时被夸大。最近，城市周边化进程再次加剧，并且越来越多地扩展到官方城市群边界之外。
