“屋顶绿化与城市生态环境”的作用

Roof Planting and Urban Ecological Environment

城市林业，是一门新兴的学科。屋顶绿化不仅为城市林业创造了更大的发展空间在改善生态环境方面更具有无可比拟的作用；通过城市绿地和屋顶绿化相结合的综合绿化之路，城市完全可以达到三季有花，四季常青的绿化目标。

Urban forestry' is a new subject. Roof planting provides more spaces for urban foresny and plays an incompatible role in improvement of ecological environment as well. Combination of roof planting and urban greening can make the city have flowers in three seasons and green plants in four seasons.