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
图2 东北地区渤海古城遗址密度(a)及集聚区分布(b)
Fig. 2 Density of Ancient Bohai City relics in Tang Dynasty in Northeast China (a) and distribution of agglomeration areas (b)