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Updated: Jul 8, 2025

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气候,土地利用/覆盖和管理实践对快速城市化流域的排水和营养变化的综合影响
Jiang Wu1, Cheng-Xin Qin2, Yao Yue3
1Key Laboratory for Urban Habitat Environmental Science and Technology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
Chemosphere
|December 13, 2023
概括
气候变化,土地利用变化和管理实践显著影响城市流域营养污染. 有效的措施改善了水质,但持续的城市化需要加强控制以实现可持续管理.
科学领域:
- 环境科学 环境科学
- 水文学 水文学
- 水质管理水质管理
背景情况:
- 非点源污染是一个主要的全球问题,受到气候变化 (CC),土地利用/覆盖转型 (LUCT) 和管理实践 (MP) 的影响.
- 现有的研究缺乏全面的量化和一致的结论,这些因素,特别是MP对营养污染的具体影响.
研究的目的:
- 量化和阐明CC,LUCT和MP对快速城市化流域营养污染的影响.
- 分析这些因素对水质和水文过程的独立影响.
- 为城市化地区可持续的流域管理提供指导.
主要方法:
- 利用基于过程的分布式水文模型与因子控制的模拟方法.
- 专注于深河流域作为典型的快速城市化地区.
- 进行了趋势和集群分析,以评估从2003年到2020年的水质变化和管理实践的有效性.
主要成果:
- 确定了营养度的显著差异,归因于气候变化,土地利用/覆盖变化和人类干预.
- 证明实施的管理实践有效地改善了水质,减少了总 (TN) 和总 (TP) 负载.
- 观察到自2016年以来的生态水补充剂略有降低了模拟流水性能,CC可能会放大降水和温度效应.
结论:
- 有效的管理实践改善了深河的水质,但快速的城市化和土地使用变化需要加强TN污染控制.
- 气候变化可能会放大对河流系统的协同效应,从而带来风险.
- 结果突出了CC,LUCT和MP的复杂相互作用,为城市化环境中可持续的流域管理提供了关键的见解.
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