道路绿化,狭义上仅指城市干道的绿化;广义上则包括城市干道、居住区公园绿地和沿线公共区域等各种类型绿地中的道路绿化。随着生态文明建设的推进,新城区建设及老城区的改建,道路绿化作为城市绿化最重要的组成部分,对城市环境的改善,降低城市颗粒污染物指数,改善城市空气质量等发挥着重要的作用。城市道路以线的形式分布于城市,联系着城市中分散的“点”和“面”的园林绿地,是城市园林 Road greening refers only to the afforestation of urban arterial roads in the narrow sense; in the broad sense, it includes greening of roads in urban greenways, residential park green spaces and public areas along the roads. With the progress of ecological civilization construction, the construction of new urban areas and the reconstruction of old urban areas, road greening plays an important role as the most important part of urban greening, and plays an important role in improving the urban environment, reducing the index of urban particulate pollutants and improving the urban air quality effect. Urban roads in the form of lines distributed in the city, linked to the city scattered “dot ” and “surface ” of the garden green is a city garden