以1926年出版的顺直地形图(1∶5万)为基础图件,使用地理信息系统(GIS)的方法,统计研究邢台和唐山两地震区地表水系的密度分布。
Base on the Shun-zhi topographic map published in 1926 , the density distribution of surface water system in Tangshan and Xingtai areas have been studied with GiS method .