中文摘要：

为指导哈长城市群建设实践，实现城市群合理健康发展，在一日交流圈基础上，依托GIS手段，并综合考虑区域自然与生态条件、国家战略与地区发展政策、行政区划等因素，利用定性与定量相结合的方法对哈长城市群的作用域进行了界定。结果表明：哈长城市群的作用域具有动态性，会随着交通方式变化与交通系统优化而改变。其中现状作用域主要包括哈尔滨市、大庆市、齐齐哈尔市、绥化市、长春市、吉林市、松原市、四平市、辽源市、通化市等10个城市；远期作用域将在现有基础上向东、西两个方向扩展，包括牡丹江市、佳木斯市、延边朝鲜族自治州等13个市（州），形成一个覆盖东北地区中北部的广域城市群。

英文摘要：

To guide the construction of Ha-Chang Urban Agglomeration, realize the reasonable and healthy development of urban agglomeration, based on the daily-communication-area, under the help of the GIS, considering the natural and ecological condition, national and regional development policy, the barrier of administrative boundaries in this region, defined the spatial scope of Ha-Chang Urban Agglomeration with the combination of qualitative and quantitative methods. The study found that the spatial scope of Ha-Chang Urban Agglomeration is dynamic. It will been changed by the change of modes of transportation and the optimization of transportation system. The current and recent range mainly include ten cities：Harbin, Daqing, Qiqihaer, Suihua, Changchun, Jilin, Songyuan, Siping, Liaoyuan, Tonghua. The forward range on the basis of existing would expand to east and west ,and it would include Mudanjiang, Yanbian Korean autonomous prefecture and so on ,summing to 13 cities （prefectures）. Finally it would form a wide-area urban agglomeration, which covers the north-central of the northeast region.