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In this context a swale is usually a water-harvesting ditch on contour, also called a contour bund. [4] [5] A natural swale. Swales as used in permaculture are designed by permaculturalists to slow and capture runoff by spreading it horizontally across the landscape (along an elevation contour line), facilitating runoff infiltration into the soil.
Surface runoff consists of building roof runoff, parking lot runoff and overland flow from properties to the north of the project site. A total of two lineal miles of bioswale was designed into the project. The purpose of the bioswale was to minimize runoff contaminants from entering Sonoma Creek. The bioswale channel is grass-lined and nearly ...
The first rain gardens were created to mimic the natural water retention areas that developed before urbanization occurred. The rain gardens for residential use were developed in 1990 in Prince George's County, Maryland, when Dick Brinker, a developer building a new housing subdivision had the idea to replace the traditional best management practices (BMP) pond with a bioretention area.
Some of the solutions are: Reduction of stormwater run-off through the use of bio-swales, rain gardens and green roofs and walls. [5] [6] [7]Reduction of water use in landscapes through design of water-wise garden techniques (sometimes known as xeriscaping) [8] [9] [10] [11]
Water Sensitive Urban Design with Green Infrastructure in the bottom right corner.. Water-sensitive urban design (WSUD) is a land planning and engineering design approach which integrates the urban water cycle, including stormwater, groundwater, and wastewater management and water supply, into urban design to minimise environmental degradation and improve aesthetic and recreational appeal. [1]
Groundwater pumping has been causing the land to sink at a record pace in California's San Joaquin Valley. New research suggests ways of addressing the problem.
Images from NASA underscore the dramatic change in water quality at the Northern California tourist destination. Clear Lake is in Lake County about 120 miles north of San Francisco.
A constructed wetland is an engineered sequence of water bodies designed to treat wastewater or storm water runoff. Vegetation in a wetland provides a substrate (roots, stems, and leaves) upon which microorganisms can grow as they break down organic materials. This community of microorganisms is known as the periphyton.
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