陕北地区城镇历史发展研究。吕卓民陕北地处黄土高原，沟谷纵横、丘陵起伏，构成其区域地貌的主要特征。另一方面，陕北在历史时期多属边徼，中原王朝与北方民族在此屡兴兵争，是一个战争多发区。自然条件和政治、军事因素对陕北地区城镇的形成与发展影响甚大，从而也形... Research on the Historical Development of Cities and Towns in North Shaanxi Province. Lu Zhuomin Northern Shaanxi is located in the Loess Plateau, vertical and horizontal valleys, hilly, constitute the main features of the regional landscape. On the other hand, northern Shaanxi was mostly a border region in historical times. The Central Plains dynasty and the northern nation repeatedly waged war in this area and is a war-prone area. Natural conditions and political and military factors have a great influence on the formation and development of cities and towns in northern Shaanxi and thus also form ...