ARCHAEOLOGICAL RESEARCH INTO THE CAIRN-TUMULI OF OMURO IN NAGANO CITY,JAPAN

我们从1984年开始对长野市大村市的大村村进行研究。第10次调查于1992年进行。我们从1989年到1992年的研究对大村通行证的Mujinagoro单位进行了强制执行。研究结果如下：(1)。大仓鼠由五个群组成，它们的分布和结构都是不同的。每组由20-30个胞核单位组成。(2)。每个单元只由公元5世纪中叶典型的Tumuli的气房风格的Tumuli Mede组成(3)。顺式和坑式石室是在公元5世纪末至6世纪中叶的石室之后出现的。这些是在凯恩传统中建造的Tumuli。这些土堆的边缘周围排列着底部穿孔的罐子，马匹的装饰有时被当作葬礼用具来埋葬。(4)。早期的廊式石室是在6世纪中叶采用的。187号巨浪有一个典型的结构，它被建造成带有顺式石室的珊瑚礁。(5)。典型的走廊风格的石室是用土壤和砾石建造的，但只有这些土丘的边缘被建造成石墙。建于6世纪中叶至7世纪的石室是对称的，入口处在一端的中间。如上所述，大村落的结构在6世纪中叶发生了显着变化。这一变化反映了长野北部地区的什么样的历史背景？

Our research into the cairn-tumuli of Omuro in Nagano City started in 1984. The 10th investigation was carried out in 1992. Our research from 1989 to 1992 has forcussed on the Mujinagoro unit of the Omuro tumuli. The results are as follows, (1). The Omuro tumuli consist of five groups distinguishable in their distribution and structure. Each group consists of units comprising 20-30 tumuli. (2). Each unit comprised only tumuli mede in the gasshougata- house style chamber typical of tumuli of the middle of the 5th century A.D. (3). Cist and pit-style stone chambers appeared after gassyougata stone chambers from the later 5th century to the middle 6th century. These are tumuli constructed in the cairn tradition. Bottom perforated jars were arranged around the edge of these mounds,and horse trappings were sometimes buried as funerary equipment. (4). Early corridor-style stone chamber were adopted in the middle of the 6th century. Tumulus No.187 has a typical with a structure that was constructed as cairn with a cist-like stone chamber. (5). Typical corridor-style stone chambers were constructed using soil and gravel, but with only the edge of these mounds were constructed as stone walls. The stone chambers constructed from the middle of the 6th century to the 7th century were built in symmetrical form with the entrance in the middle of one end.The structure of the Omuro tumuli markedly changed in the middle of the 6th century as mentioned above. What sort of historical context in the north Nagano region is reflected in this change?