空间尺度是地学研究的基础性问题，遥感信息的空间尺度及其转换随着遥感应用发展而日益受到重视，同时遥感与地理信息系统技术的发展也为空间尺度研究提供了有力的工具。本文以系列空间分辨率遥感图像为数据源，采用分形几何方法研究海岸线遥感信息的空间尺度，提出了基于分形尺度依赖性的遥感信息空间尺度转换模型和基于比例尺的遥感信息空间尺度转换模型，并以海岸线为例验证了模型的有效性和实用性。

Spatialscale isone ofthe fundamentalproblems in geosciences. The spatialscale ofremote sensing\ninformation and the spatial scale transformation have become the object ofmany scientific studies with the\napplications of remote sensing data. In this paper, the spatial scale of shoreline information extracted from\nsatellite mi ages with different resolutions has been studied based on fractal geometry. Two spatial scale\ntransform models based on scale and fractalscale-dependence have been developed. Themodelshave been used\nto transfer shoreline spatial scale extracted from IKONOS, IRS, SPOT and ETM+ mi ages to 1∶10000 and\n1∶50000 scales. The results have been comparedwith themap scale. It shows that themodelsworkwel.l