东北地区唐代渤海古城遗址空间格局及影响因素分析
刘海洋, 付雨鑫, 殷铭徽

Spatial Pattern and Influencing Factors of the Ancient Bohai City Relics in Tang Dynasty in Northeast China
Liu Haiyang, Fu Yuxin, Yin Minghui
Table 4 Distribution quantity of river buffer zone of Ancient Bohai City relics in Tang Dynasty
类型 0~200 m 200~400 m 400~600 m 600~800 m 800~1000 m 1000~1200 m >1200 m
平原城 28 29 25 26 16 6 15
山城 9 18 19 17 11 9 6
总计(占比/%) 37(15.8) 47(20.1) 44(18.8) 43(18.4) 27(11.5) 15(6.4) 21(9.0)