水源问题、洪水问题、污水问题是城市化过程中的三大水文响应，也是城市水环境管理研究的重要课题。

Problems of water source, flood disaster, and water pollution are the three hydrological responses in urbanization process, also are the main issues in water environment management.

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其中，城市气候和水文的变化是城市环境变化的两个主要类型。

Of the negative impact, the changes of urban climate and hydrologic system are two major aspects.

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