@article{oai:rekihaku.repo.nii.ac.jp:00002420,
 author = {若狭, 徹 and Wakasa, Toru},
 journal = {国立歴史民俗博物館研究報告, Bulletin of the National Museum of Japanese History},
 month = {Mar},
 note = {application/pdf, 東国の上毛野地域を軸に据えて，古墳時代の地域開発と社会変容の諸段階について考察した。前期前半は東海西部からの大規模な集団移動によって，東国の低湿地開発が大規模に推し進められるとともに，畿内から関東内陸部まで連続する水上交通ネットワークが構築された。在来弥生集団は再編され，農業生産力の向上を達成した首長層が，大型前方後方墳・前方後円墳を築造した。
前期後半から中期初頭は，最大首長墓にヤマトの佐紀古墳群の規格が採用され，佐紀王権との連携が考えられる。一河川水利を超えた広域水利網の構築，広域交通拠点の掌握という2点の理由によって，上毛野半分程度の範囲で首長の共立が推し進められた。また，集団合意形成のための象徴施設である大規模な首長居館が成立している。
中期前半には東国最大の前方後円墳の太田天神山古墳が成立したが，河内の古市古墳群を造営した王権との連合の所産とみられる。この頃から東国に朝鮮半島文物が移入されることから，倭王権に呼応して対外進出・対外交流を行うために外交・軍事指揮者を選任したことが巨大前方後円墳の成立背景と考えた。中期後半には渡来人や外来技術が獲得されたため，共立の必要性は解消し，各水系の首長がそれぞれ渡来人を編成して地域経済を活性化させている。
後期の継体期には，東国最大の七輿山古墳が成立したが，その成立母体が解消すると，複数の中型前方後円墳が多数併存するようになる。こうした考古学的な遺跡動態や，古代碑・『日本書紀』『万葉集』などの文献の検討を合わせて，屯倉の成立と地域開発の在り方を考えた。武蔵国造の乱にも触れ，緑野屯倉・佐野屯倉の実態ならびに上毛野国造との関係性についても論及した。, With focus on Kamitsukeno Province (the present-day Gunma Prefecture), one of the Eastern Provinces (the present-day Kantō region), this article examines the different stages of regional development and social transformation in the Kofun period. In the first half of the early Kofun period, large-scale mass immigration from the western Tōkai region promoted large-scale wetland development in the Kantō region and the construction of an inland water transportation network connecting the Kinai and Inland Kantō regions. The Yayoi people who had originally inhabited the area were resettled, and chiefs who had achieved higher agricultural productivity built large-scale keyhole tombs with a quadrangular or round rear portion.
In the second half of the early Kofun period and the beginning of the middle Kofun period, the largest chief tomb was built to the same design standards as the Saki Tumulus Group. This implies an alliance between its occupant and the Saki royal authority in Yamato. At the same time, chiefs selected their representative and brought about half of the land area of Kamitsukeno Province under his control, mainly for two purposes: (1) constructing a region-wide water transportation network linking multiple rivers and (2) getting hold of regional transportation hubs. Moreover, a large residence was built for the representative chief, serving as a symbol of group consensus building.
In the first half of the middle Kofun period, Ōta Tenjinyama Tumulus, the largest keyhole tomb in the Eastern Provinces, was constructed. This tumulus implies an alliance between its occupant and the royal authority that built the Furuichi Tumulus Cluster in Kawachi. The reason for the emergence of such large keyhole tombs is considered because a diplomatic and military leader was appointed for inter-state interactions and overseas expansion in response to the request from the Yamato polity around that time, while documents imported from the Korean Peninsula were introduced into the Eastern Provinces. In the second half of the middle Kofun period, Chinese and Korean immigrants and their technologies eliminated the need for chiefs to select their representative. The chief of each water system organized a group of Chinese and/or Korean immigrants to activate the regional economy.
In the reign of Emperor Keitai in the late Kofun period, Nanakoshiyama Tumulus, the largest tomb in the Eastern Provinces, was constructed. After the decline of the lineage that built the tomb, multiple medium-scale keyhole tombs were constructed simultaneously. By examining the development of these archaeological sites and reviewing historical written sources, such as stele texts, Nihon Shoki (Chronicle of Japan), and Man'yōshū (the earliest extant anthology of Japanese poetry), this article analyzes the establishment of miyake (estates designated by the Yamato Court for rice production) and the dynamics of regional development. This article also examines the Musashino-Kuninomiyatsuko War as well as the actual state of Midono-miyake and Sano-miyake and their relationships with Kamitsukeno-kuninomiyatsuko (Provincial Governor of Kamitsukeno)},
 pages = {307--350},
 title = {東国における古墳時代地域経営の諸段階 : 上毛野地域を中心として (第3部　倭の地域社会)},
 volume = {211},
 year = {2018},
 yomi = {ワカサ, トオル}
}