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城市和集镇,人口多,密度大,群众活动频繁,生产生活产生的废气废物多,空气和环境易受污染。搞好城市和集镇的绿化工作,对净化空气、美化市容,改善人民群众生活、生产的环境,有着非常重大的意义。城镇绿化和一般造林不同,有着它独特的要求。由于城镇可供绿化的土地窄、分散、难以规划和管理,因此,绿化树种的选择,更要求具严格的科学性要根据不同的地块、不同的特点,选用不同的树种,是保证绿化成功的关键。
Cities and market towns have a large population, large density, frequent mass activities, many waste and waste generated from production and living, and air and the environment are easily polluted. To do a good job of afforestation in cities and market towns is of great significance for purifying the air, beautifying the cityscape, and improving the living environment of the people and the environment for production. Urban afforestation and afforestation different, has its unique requirements. As the land available for urbanization is narrow and scattered, it is difficult to plan and manage. Therefore, the selection of afforestation species requires more rigorous science. The selection of different tree species according to different land parcels and different characteristics is the guarantee of afforestation success key.