Low-impact development (also referred to as green stormwater infrastructure) are systems and practices that use or mimic natural processes that result in the infiltration, evapotranspiration or use of stormwater in order to protect water quality and associated aquatic habitat. LID practices aim to preserve, restore and create green space using soils, vegetation, and rainwater harvest techniques. It is an approach to land development (or re-development) that works with nature to manage stormwater as close to its source as possible. Many low impact development tools integrate vegetation or the existing soil to reduce runoff and let rainfall enter the natural water cycle.