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检查城市化导致的每日降雨模式的变化:对流域水文学的转变进行研究
Farhang Rahmani1, Mohammad Hadi Fattahi2
1Department of Civil Engineering, Islamic Azad University Marvdasht, Marvdasht, Iran. farhangrahmani.au@gmail.com.
Environmental science and pollution research international
|August 1, 2025
概括
城市化增加了德黑兰的降雨不可预测性和洪水风险,因为它改变了土地使用. 这项研究强调了可持续城市规划的必要性,以管理水资源和减轻洪水风险.
科学领域:
- 水文学的水文学
- 城市规划 城市规划
- 环境科学 环境科学
背景情况:
- 城市化大大改变了土地利用,影响了德黑兰流域等发展中地区的水文过程.
- 了解这些影响对于管理水资源和减轻与极端天气事件相关的风险至关重要.
研究的目的:
- 调查土地利用从农业/自然到城市环境的转变如何影响德黑兰流域的每日降雨模式.
- 分析城市扩张与降雨动态变化的关系,包括不可预测性和混乱.
主要方法:
- 利用多分体光谱图,相关维度,利亚普诺夫指数和近似来分析每日降雨数据.
- 在城市中心不同附近的各个站点之间比较降雨模式的变化.
主要成果:
- 几个站点的近似和利亚普诺夫指数的增加表明降雨不可预测性和混乱动态的增加,表明洪水风险增加.
- 在一些站点较低的相关维度表明更稳定的水文反应和弹性.
- 靠近城市中心的站点显示,每天降雨事件的频率和强度增加.
结论:
- 城市化带来的土地利用变化大大改变了降雨模式,增加了不可预测性和潜在的洪水风险.
- 这些发现强调了城市发展与水文系统行为之间的关键联系.
- 强调可持续城市规划,适应性排水,绿色基础设施和区域划分对于城市化地区的洪水风险管理和水资源可持续性的必要性.
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