庭院绿化为城市建设提供了显著的生态效益、社会效益和经济文化效益。
To the constructing of cities, courtyard greening has great effects on environment, society, economy and civilization.
在我国快速城市化进程中，城市建设用地盲目扩张，不仅造成土地资源的浪费，而且造成城市生态环境的破坏。
In the rapid urbanization process of our country, the blind expansions of urban construction land use not only waste the land resources, but also damage the ecological environment of cities.
叙述塌陷灾害给城市建设、工程建筑，生态平衡及社会环境等方面造成的严重后果。
The serious consequences that inducing by subsidence disaster in engineering, ecological equilibrium, human society and other respects are described.
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