Researches of Interrelation between Bohai and Japan

1996年，我们研究了Starorechenskoye gorodisiche和Sinelnikovo gorodisiche。原址位于绥坟河附近的冲积平原。我们在这个遗址中挖掘了一些地方，并测量了土方工程，但这个遗址出乎我们的预料受到了干扰。然后我们搬到了后一个地点。Sinelnikovo gorodisiche也位于绥fun河附近。这是一座典型的山地城堡，部分由石墙防御。我们通过对石壁的挖掘，明确了这道城墙的建造年代，从而明确了这道城墙建于渤海早期。1997年，我们再次挖掘了锡涅尔尼科沃遗址。我们把去年挖的沟往下挖，然后在石墙下发现了一堵旧墙。我们认为古城墙建于漠河时期。我们挖掘了这座城堡的大门。大门位于石墙的中央。这个门的结构很有趣，可能是继承了传统的高孤里方法。1998年，也就是我们项目的最后一年，我们挖掘了克拉斯基诺。这次发掘是人们期待已久的，因为这里被确定为渤海大使出使日本的渤海港口。首先，我们用壕沟挖掘了一部分东墙，然后是东门。我们发现这堵墙后来被修理过。门区的挖掘工作将持续到明年。

In 1996, we researched Starorechenskoye gorodisiche and Sinelnikovo gorodisiche. The former site is located at alluvial plain near by Suifun river. We excavated some places in this site and measured earthwork, but this site have been disturbed beyond our expectation. Then we moved into latter site. Sinelnikovo gorodisiche also is located near by Suifun river. and is a tipical mountain castle partly defended by stone wall. We excavated stone wall in order to make clear the age of construction of this wall, and then we clarified that the wall was costructed at early period of Bohai.In 1997, we excavated again Sinelnikovo site. We digged down the trench excavated last year, then discovered an old wall under the stone wall. We think that the old wall was constructed at Mohe period. And we excavated the gate of this castle. The gate was situated at the center of stone wall. The structure of this gate is very interresting one, perhaps succeeding the traditional method of Kaoguli.In 1998, the last year of our project, we excavated Kraskino gorodisiche. The excavation was long-expected one because this site is identified as the port of Bohai that the ambassador of Bohai started to Japan. At first, we excavated a part of eastern wall by trench, and then east gate. We discoverd that the wall had been repaired at a later period. The excavation of gate area will be succeeded into next year.