随着工业的发展,工厂排放“三废”日益增多,因此环境保护问题将是一项不容忽视的大事.植树造林,绿化环境,但是其中重要措施之一.但是,各种树木对环境的适应能力和保护功能不尽相同,应当怎样选择各种树木来绿化呢?总的考虑要适地适树,抵抗污染,净化空气,遮荫降温,并力求有一定观尝和经济价值. With the development of industry, the “three wastes” of factories are increasing day by day, therefore, the issue of environmental protection will be a major event that can not be ignored. Afforestation and greening are one of the important measures. However, the adaptability of various trees to the environment And the protection is different, how to choose a variety of trees to green? Overall consideration should be appropriate tree, resist pollution, air purification, shade and cooling, and strive to have a taste and economic value.