相关实验视频
Updated: Jun 21, 2025

13:48
Design and Construction of an Urban Runoff Research Facility
Published on: August 8, 2014
13.0K
在台湾不同城市的15个雨水花园的现场表演
Chi-Feng Chen1, Yi-Wei Chen1, Cheng-Han Lin1
1Department of Civil Engineering, National Taipei University of Technology, Taipei, Taiwan.
The Science of the total environment
|July 7, 2024
概括
台湾 台湾 台湾 台湾
科学领域:
- 环境工程 环境工程
- 城市规划 城市规划
- 生态生态学 生态生态学
背景情况:
- 雨园对于城市地区的低影响开发 (LID) 和以自然为基础的解决方案 (NbS) 至关重要.
- 台湾环境部于2018年启动了一项雨水花园项目,在各个城市建立了15个地点.
- 这些花园设有地下储和物联网传感器,用于实时监控.
研究的目的:
- 量化台湾雨园在保留水,降温,水质和生态影响方面的表现.
- 评估雨水花园作为可持续城市发展战略的有效性.
主要方法:
- 在1-3年内从15个雨水花园收集现场数据.
- 使用物联网技术监测温度,降雨量和地下水位.
- 分析水留,表面温度差异,水质参数 (SS,BOD,大肠杆菌) 和生态指数 (香农,辛普森).
主要成果:
- 雨水花园实现了近100%的降雨保留,但如果不利用储存的水,则会发生溢出.
- 与路面相比,表面温度的降低平均为2-4°C,峰值超过20°C.
- 储存的水显示低SS和BOD,但高大肠杆菌数量 (平均6283CFU/100mL),不适合消费.
- 生态指数显示,植物在一年后处于良好状态.
结论:
- 台湾的雨水花园有效地管理雨水,减轻城市热量,并支持生物多样性.
- 不同城市的一致表现凸显了它们的适应能力.
- 定期维护和利用储存的水对于持续的性能和水质至关重要.
- 虽然对息地和冷却有好处,但储存的水在使用洗或饮用之前需要进一步处理.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
43
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
43
Design Example: Alignment of a Road Line Using GIS
47
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
47
Design Example: Design of an Irrigation Channel
90
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
90
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K

