通过一个城市区域的精细水平衡模型来评估蓝绿色解决方案的性能
Xuan Wu1, Sotirios Moustakas1, Nejc Bezak2
1Department of Civil Engineering, KU Leuven, Kasteelpark Arenberg 40, 3001 Leuven, Belgium.
The Science of the total environment
|July 15, 2024
概括
结合蓝色和绿色基础设施 (BGIs) 有效地减轻城市洪水和干旱. 这项研究开发了一种灵活的水平衡模型,以评估绿色屋顶和透表面等BGI,以实现最佳的雨水管理.
科学领域:
- 环境工程 环境工程
- 城市水文学 城市水文学
- 可持续的基础设施可持续的基础设施
背景情况:
- 蓝色和绿色基础设施 (BGIs) 为城市雨水管理提供基于自然的解决方案.
- 有效评估BGI需要能够模拟复杂水平衡动态的模型.
- 城市地区面临洪水和干旱带来的越来越多的挑战,需要有弹性的基础设施.
研究的目的:
- 开发和应用一个灵活的水平衡模型来评估城市雨水管理中的蓝色和绿色基础设施 (BGIs).
- 评估各种BGI的性能,包括绿色屋顶,透表面和雨水,以减轻洪水和干旱.
- 分析不同 BGI 对冲量减少,透和水的再利用的综合影响.
主要方法:
- 开发一个计算效率高的水平衡模型,整合单一水库方法和土壤保护服务曲线数量 (SCS-CN) 方法.
- 用精细的空间和时间分辨率模拟流水形成和传播,允许灵活整合BGI.
- 在比利时一所大学校园中,单个和组合的BGI实施方案的场景分析,评估峰值流量,排水量和水平衡.
主要成果:
- 水平衡模型准确地模拟了城市水动态和BGI性能.
- 个别的BGI显示出减少流水和保持水分的能力.
- 结合多个BGI的实施,通过减少峰值流量和体积,增加透,并使雨水再利用,显著增强了防洪和干旱缓解.
结论:
- 多样化的蓝色和绿色基础设施的结合为城市雨水管理提供了强大的战略.
- 开发的模型可转移和适应,用于在各种城市环境中评估BGI.
- 综合的BGI解决方案对于构建能够应对极端降水事件和水资源短缺的城市环境至关重要.
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