Stabilisation of dunes with marram Ammophila arenaria results in dune slope collapse at Portrush, Co. Antrim, Northern Ireland
Published source details
Carter R.W.G. (1980) Vegetation stabilisation and slope failure of eroding sand dunes. Biological Conservation, 18, 117-122
Published source details Carter R.W.G. (1980) Vegetation stabilisation and slope failure of eroding sand dunes. Biological Conservation, 18, 117-122
In the UK and elsewhere, coastal sand dune stabilisation by planting vegetation is widely used and often effective. However, at many sites foredunes need to retain some instability to remain effective buffers against erosion, too much stabilisation may be detrimental to the beach-dune system. This study compared stability of vegetated (previously planted with marram grass Ammophila arenaria) and non-vegetated dune slopes at Portrush, County Antrim (Northern Ireland). The site is characterized by little available fresh sand, foredune growth is thus largely absent, 18-20 m high dunes abut the beach. This study investigated response of the dunes following seawater undercutting in 1975.