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城市是一个地区或区域的政治、经济、文化中心,这里人口稠密,工厂林立,交通发达,经济繁荣。同时,这里人为造成的污染源较多,各种污染比较严重。森林是生态环境的主体,本应在城市生态环境建设中起主导作用。环境学家曾明确指出:森林是空气的过滤器,噪音的消声器,天然的灭菌器,环境的化妆师等。为充分发挥林业在城市生态建设中的主导作用,最大限度地提高城市环境质量,有必要建立“城市林业系统工程”这一新学科。
City is a regional or regional political, economic and cultural center, where densely populated, factories, traffic developed, economic prosperity. At the same time, there are more man-made sources of pollution here and all kinds of pollution are more serious. Forest is the main body of ecological environment, which should play a leading role in the construction of urban ecological environment. Environmental scientists have made it clear: the forest is the air filter, noise muffler, natural sterilizer, makeup artist and the environment. In order to give full play to the leading role of forestry in urban ecological construction and to maximize the urban environmental quality, it is necessary to establish a new discipline of “urban forestry system engineering”.