A grassed waterway is a 2-metre (6.6 ft) to 48-metre-wide (157 ft) native grassland strip of green belt. It is generally installed in the thalweg, the deepest continuous line along a valley or watercourse, of a cultivated dry valley in order to control erosion. A study carried out on a grassed waterway during 8 years in Bavaria showed that it can lead to several other types of positive impacts, e.g. on biodiversity.[1]
- ^ Fiener P., Auerswald K. (2003). Concept and effects of a multi-purpose grassed waterway. Soil Use and Management 19, 65-72.