中文摘要：

提出了地理信息广义尺度的三重概念体系，解释了它们各自的涵义及其笛卡儿积的意义，讨论了广义尺度变换问题。

英文摘要：

At first, the connotation and the dimension of scale of geographical information are extended to full the need of describing the every aspects of it; and three types of concepts of its scale are defined as： dimensions of scale, kinds of scale, components of scale. The dimen sion of scale of geographical information is consisted of spatial dimension, temporal dimen- sion and semantic dimension. The classifications of scale of geographical information are of phenomena scale, measure scale and token scale. The components of scale of geographical information are of extension, granularity（resolution） and frequence. At last the transform of scale of geographical information and issue of scale choice are discussed.