建设和谐社会离不开良好的生态环境,而城市绿化作为城市生态环境最主要的组成部分之一,对提高城市生态环境质量起着至关重要的作用。因此,近年来全国各地都十分重视环境绿化工作,兴起了一波又一波的城市绿化高潮,并且取得了显著的成效,许多城市的环境面貌因为绿化水平的提高而 Building a harmonious society is inseparable from a good ecological environment, and urban greening as one of the most important components of urban ecological environment, to improve the quality of urban ecological environment plays a crucial role. Therefore, in recent years, environmental afforestation has been attached great importance to all over the country, and wave after wave of urban afforestation upsurge has taken place and remarkable results have been achieved. Because of the improvement of greening level in many cities