Noun
riparian buffer (plural riparian buffers)
(ecology) An area of vegetation around a body of water that gives benefits to the ecosystem in the body of water. It can provide shade, a food source, and a buffer against pollution from outside sources.
Riparian buffer zones are interfaces between a flowing body of water and land, and have been created near waterways in an attempt to filter pollutants; sediment and nutrients are deposited here instead of in water. Source: Internet
Riparian buffer zones Studies show that intercepting non-point pollution between the source and the water is a successful means of prevention. Source: Internet