中文摘要：

研究目的：探讨优化城市扩展用地空间布局的方法。研究方法：回归分析法、空间叠置分析法和实证分析法。研究结果：依据农用地分等成果分析，结合MAPGIS软件的空间分析功能，提出了城市扩展用地合理的空间布局。研究结论：依据农用地分等成果优化城市扩展用地空间布局，不仅保障了城市发展用地，而且保护了一部分优质耕地，保障了粮食生产能力。

英文摘要：

The purpose of the paper is to explore ways of optimizing spatial pattern of urban expansion. Methods of regression, map overlay and case study were employed. The paper suggested the rational spatial pattern of urban expansion on the basis of agricultural land classification with the help of the MAPGIS software. It is concluded that the optimization method could not only safeguard land demand for urban development, but also protect some cultivated land of high grain productivity.