中文摘要：

介绍屋顶绿化具有城市建筑节能、环境保护等多种功能，通过对国内外屋顶绿化的发展及应用现状概述，着重分析轻型屋顶绿化技术与作用，为推广轻型屋顶绿化提供理论依据，在城市建设与建筑节能领域具有一定的实用价值和理论意义。

英文摘要：

Introduced the multi-functions of roof greening in the energy-saving and environment protection of the city construction, and fovantages by the brief review about the development and Current application of the Roof-Greening Technology in domestic and aboard. It provided the theoretical basis for the more application of the techology of light-greening in the city construction ,and was valuable theoretidally and practically in the filed of the environment protection of the city construction and the energy-saving of building.