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Impacts of additional aerial inputs of nitrogen to salt marsh

In 2012 LAB Coastal carried out a desk-based investigation on the impacts of ...

A Portable Erosion Measuring Device (EMD)

When a river overtops its artificial flood banks, water running down the land...

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LAB Coastal
The Maylands
Holywell
St Ives, Cambs
PE27 4TQ

01480 468068

A Portable Erosion Measuring Device (EMD)

When a river overtops its artificial flood banks, water running down the landward side of the bank can rapidly erode the soil surface and scour the bank. This sometimes leads to breaches and collapse.  A covering of living vegetation, especially grass, can reduce this risk of water erosion.  As part of an Environment Agency funded project to assess the effectiveness of different management regimes on bank vegetation cover, direct measurements were required of the erodibility of the soil surface. 

In response to this need, a portable erosion measurement device (EMD) was developed by LAB Coastal, with the support of the Environment Agency.  This can direct water flowing at known velocities across areas of the flood banks, and it was used to test directly the erosion resistance of vegetated grass banks.  It proved a reliable tool for assessing the erodibility of the vegetated surface of flood banks. 

Boorman, L.A. & Hazelden, J. 2012  The use of a new portable Erosion Measuring Device (EMD) in assessing the erodibility of the surface layers of flood embankments.  Soil Use and Management, 28, 120–127