因而抗菌建材作为一类生态环境功能建材，受到人们的青睐。
As a result, the antimicrobial building materials which is a kind of environmental functional materials is favored.
由于自然因素和人为因素的影响，区域生态环境功能不断退化。
Because of the influence of the nature factor and the artificial factor, district ecosystem environment the function is continuously deteriorating.
构建评价指标体系是城市林业生态环境功能评价的前提和关键。
It is the basis and key to eco-environment function assess of urban forestry that constructing assess index system.
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