Although they are aesthetically pleasing sand dunes are very delicate constructions. People who disregard this fact are sand dunes worst enemies. Dune grass is very important to the preservation of sand dunes. The dune grass roots help keep the dunes intact. The roots of the dune grass plant will extend deep into the dune and help control natural dune erosion.
Environmentalists encourage the growth of sand dunes.
With regular plantings of dune grass, regular fertilization, and proper placement of snow fences, these three things help promote the growth of sand dunes. Jetties and Seawalls Many people think jetties and seawalls are more effective than sand dunes in protecting the shoreline. But they actually encourage the loss of beach sand in many cases. When storm waves crash against sea walls and jetties, sand is carried back into the sea as the water retreats. Jetties and seawalls are not effective on barrier islands, because a barrier island is constantly shifting and is made up of nothing but sand.