What role does vegetation play in stormwater management?

Vegetation plays a significant role in stormwater management primarily by absorbing excess water and reducing runoff. The roots of plants create a network in the soil that increases its porosity, allowing more water to infiltrate rather than flow over the surface. This natural absorption helps in managing stormwater more effectively by decreasing the volume of runoff that can carry pollutants and exacerbate flooding. Moreover, vegetation can help filter pollutants from the water, improve water quality, and promote groundwater recharge.

Through transpiration, plants also release water into the atmosphere, further reducing moisture levels in the soil during heavy rainfall. This combined effect contributes to a more balanced hydrological cycle, making areas with vegetation less susceptible to flooding and erosion compared to bare land.