The Study on materials, population and cultural exchanges in the ancient Tohoku and Hokkaido districts.

这项比较研究计划对分布在7世纪和8世纪的东北和北海道地区的陶器进行年表，通过详细提取分类类型来分析陶器群的各个方面，并探讨人口、物质和文化交流的方面。从2003-2006学年，我和熊井纪夫的合作研究员与东北和北海道地区的15名研究人员建立了7个工作坊。我们观察了相同的材料，并交换了意见，以获得一个共同的看法。通过这项研究，我们可以建立一个陶器年表。由此，我们可以得到东北和北海道地区的时间顺序，我们可以根据这些时间顺序来考虑历史上的运动。我们还发现了栗井区、Aizugata区、北部区-栗谷区和北海道区-栗口区四个地区的陶器图案。这些模式在相同类型的分类下有共同的组成部分。我们认为，每个地区的人们分享信息和技术，以及他们的生活方式。最后，我们可以说明这些地区之间的人口、物质和文化交流的流动。

This comparative study plans to make a chronology of earthenwares, a time span interrelated with region, which distributed over the Tohoku and Hokkaido districts in the seventh and eighth centuries, to analyze aspects of group of earthenwares by extracting the type of classification in details, and to approach movements of population, materials and aspects of cultural exchanges.From the academic year of 2003 to 2006, I and Kimio Kumagai co-researcher set up seven workshops with fifteen researchers of the Tohoku and Hokkaido districts. We observed the same materials, and exchanged our opinions each other in order to attain a common perception.Thorough this study we can construct a chronology of earthenwares. As a result we can get a chronological order of the Tohoku and Hokkaido districts by which we consider historical movements.And we found out four areas of the earthenware patterns of Kurigakoi, Aizugata, Hokubugata-Kurigakoi, and Hokkaido-Kurigakoi. These patterns have common components under the same type of classification. We suppose that people in each area shared informations and techniques as well as their lifestyle. Finally we can illuminate movements of population, materials and cultural exchanges between these areas.