What is the importance of dispersed/diffuse flow in stormwater management?

The importance of dispersed or diffuse flow in stormwater management lies in its ability to promote subsurface flow while reducing surface erosion. When stormwater flows in a dispersed manner, it spreads out over a larger area instead of concentrating at one point. This helps to facilitate groundwater recharge as water percolates through the soil, which is essential for maintaining local water tables and supporting ecosystems.

Additionally, by reducing the speed and energy of flowing water, dispersed flow decreases the likelihood of erosion. Erosion can lead to sediment loss and water quality issues in nearby bodies of water. Therefore, promoting diffuse flow is a critical aspect of effective stormwater management, as it aids in mitigating environmental impacts while enhancing the natural water cycle. This practice can help manage stormwater more sustainably and contribute to healthier landscapes.