市树(city tree)是城市形象的重要标志,也是现代城市的一张名片。国内外已有相当多的城市拥有了自己的市树。市树的确定,不仅能代表一个城市独具特色的人文景观、文化底蕴、精神风貌,体现人与自然的和谐统一,而且对带动城市相关绿色产业的发展,优化城市生态环境,提高城市品位和知名度,增强城市综合竞争力,具有重要意义。
中国城市市花市树研究 关键词:市花;市树;地级市 [gap=1252]Key words:city flower,city tree,prefecture-level city
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The determination of city flower and city tree.
5.市花市树确定。
参考来源 - 桐城市城市绿地系统树种规划的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
研究发现,城市树木的碳循环速度和生长速度几乎是乡村树木的四倍。
It was discovered that rates of carbon cycling and growth rates among city trees were nearly four times faster than those in the countryside.
研究人员表示,为了确保城市健康发展,种植和保护树木是必要的,但我们还需要做更多的工作来更好地了解城市树木,因为它们可能与乡村森林不同。
Researchers say planting and protecting will be needed to make sure cities can develop healthily, but more needs to be done to have a better understanding of city trees which may be different from countryside forests.
很多大城市树木的数量急剧减少。
The number of trees in many big cities has dramatically reduced.
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