中文摘要：

城市热环境是城市微气候的重要组成部分，也是城市空气环境质量的因素之一。以城市区域面积、人口、地理信息等详细的数据调研为依据，提出了近几十年来武汉城市快速扩张给城市热环境带来影响的论题，并对武汉市东南片区的城市扩张进行了基于城市冠层模型的WRF数字模拟，导出了不同时间段不同案例的气温及其差值，并进行量化比对和分析，得出城市边缘扩张对城市热环境影响的若干结论，最后为武汉城市空间扩展提出了若干建议。

英文摘要：

Basing on demographic and geographic information, this article illustrates the rapid development of Wuhan in the last several decades. Meanwhile, it is also argued that the expansion of city will affect the urban thermal environment. By simulating the expansion of the southeast area of Wuhan in WRF, the papershows the variation of temperature in diverse cases. By comparing and ana- lyzing the temperature data, the paper gives several conclusions relate to the influence of urban thermal environment and urban expansion. Suggestions for future urban expansion are also given.