因此，鸟类可反映城市生态环境质量。

So bird can reflect the quality of the urban ecological environment.

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因此，有必要探索更加有效提供城市生态环境质量的新途径。

So, it's necessary to explore a new way for more effective urban ecological environmental quality.

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城市土壤影响到城市生态环境质量和人体健康，正日益受到关注。

There is increasing concern about urban soil because of its effect on urban eco-environment quality and human health.

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