Reconstruct of the National Land Structure and the Port Policies : A Perspective Focusing on Introducing the Doshusei System and Promoting Economic Cooperation among the Areas Surrounding the Japan Sea

本文阐明了在全球化时代，在设想的多舒西地区集团体系下，加强区域集团的权力下放和更大权力的必要性。中国经济的全球崛起给环日本海地区城市之间日益增长的经济交流注入了活力，这使得日本政府不可避免地将加快努力，通过在日本群岛发展连接这两个经济区的新交通网络，促进环太平洋地区经济区和环日本海经济区之间更顺畅的经济交流。特别是位于日本中部的日立中至直津一带，应该在连接两者中发挥不可或缺的作用。为了最大限度地发挥日立中-直津经济带作为全国助推器的作用，重组日本的经济格局，日本政府应该通过在该地区现有的港口城市和其他城市之间建立网络，在综合的北部关东-新越区域区块发展一个特大城市。实施设想中的多寿西区域区块制度，将关东新越北部区域区块指定为蜀国，并促进每个区域区块的分权，是重组日本经济格局不可或缺的先决条件。

This paper clarifies the necessity of increased decentralization and greater powers for regional blocks under the envisioned doshusei regional block system in the age of globalization. Growing economic exchanges among the cities in the Japan Sea Rim Region, which the global rise of Chinese economy has been invigorating, have made it inevitable that the Japanese government will accelerate efforts to facilitate the smoother economic exchanges between the Pacific Rim Regional Economic Zone and the Japan Sea Rim Economic Zone by developing new transportation networks across the Japanese archipelago interlinking the two Economic Zones. In particular, the belt zone from Hitachinaka to Naoetsu, which lies in the central part of Japan, is supposed to play an indispensable role in connecting the two. In order to make the most of the Hitachinaka-Naoetsu belt zone as an across-the-nation booster to restructure Japan's economic landscape, the Japanese government should develop a megalopolis in the integrated Northern Kanto-Shin-Etsu regional block by constructing networks among the established port cities and other cities in the zone. Putting the envisioned doshusei regional block system into effect, designating the Northern Kanto-Shin-Etsu regional block as a shu, and promoting decentralization in each regional block are indispensable prerequisites to restructuring Japan's economic landscape.