Hydrology and urban planning

thumb|The Lawn at the [[University of Virginia, facing south]] thumb|The lawn of a small Summer house|summerhouse thumb|A croquet lawn at a club in [[Edinburgh, Scotland]] thumb|San Francisco Botanical Garden lawn, United States

roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane.

river that runs wholly or partly beneath the ground surface

accumulation of rainwater for reuse

sustainable and resilient infrastructure

process of converting wastewater into water that can be reused for other purposes

form of rainwater runoff management

deliberate human modification of the course, flow, or other characteristics of a river

small dam

surface runoff of rainwater created by urbanization

roads built with water pervious materials to limit surface runoff

city that has the capacity to mainstream urban water management into the urban planning policies and designs

Land use and runoff management technique

vegetative strip beside the carriageway of a road or between two roads

thumb|Runoff from the vicinity flows into an adjacent bioswale Bioswales are channels designed to concentrate and convey stormwater runoff while removing debris and pollution. Bioswales can also be beneficial in recharging groundwater, reducing flooding and erosion, and creating a valuable habitat for pollinators.

rainwater harvesting technique

thumb|A bioretention cell, also called a rain garden, in the [[United States. It is designed to treat polluted stormwater runoff from an adjacent parking lot. Plants are in winter dormancy.]]

artificial structures—such as pavements covered with water-tight materials

designed to reduce the potential impact of development

EU strategy for biodiversity

conservation-oriented land use planning

formerly natural waterway flowing through heavily populated area

thumb|Sidewalks are a common form of hardscaping Hardscape is hard landscape materials in the built environment structures that are incorporated into a landscape. This can include paved areas, driveways, retaining walls, sleeper walls, stairs, walkways, and any other landscaping made up of hard wearing materials such as wood, stone, and concrete, as opposed to softscape, the horticultural elements of a landscape.