A third cause of beach erosion is the reduction in sand supply to the shore in places where dunes moving from the land have been stabilized by the natural spread of vegetation, by conservation efforts (such as the planting of marram grass), or because the sand supply has run out, the whole of a dune having moved onto the shore.
(dunes; moving; from the land) (dunes moving from the land; have been stabilized; by conservation efforts (such as the planting of marram grass; L:places) (the sand supply; has run out; ) (the whole of a dune; having moved; onto the shore) Context(the whole of a dune having moved,List([281, 313))):(A third cause of beach erosion; is; the reduction in sand supply to the shore in places; because the sand supply has run out)
the whole of a dune having moved,List([281, 313))
dunes dunes moving from the land the sand supply the whole of a dune A third cause of beach erosion
moving have been stabilized has run out having moved is
from the land
by conservation efforts (such as the planting of marram grass L:places
onto the shore
the reduction in sand supply to the shore in places because the sand supply has run out