![]() ![]() There are many different designs, mainly determined by the availability of materials. ![]() Where access control is to be combined with sand trapping, chestnut paling or dutch fencing reinforced with strained wire are best. Sand does not compress much with tamping, so replace the sand in layers about 5cm thick and water each layer until it is thoroughly moist.ĭo not strain wire more than is absolutely necessary. Dig the hole quickly and put the sand in one heap to reduce drying out. Where sand build-up is to be avoided, post and wire fencing is the easiest and cheapest. The following are special types of fencing adapted for sandy areas. DUNE REGENERATION SOFT ENGINEERING HOW TODune Fencingįor details of fencing techniques, see How to Build Fences. Below this height sand couchgrass ( Agropyron junceiforme) or lyme grass ( Elymus arenarius) can be used. Plant the whole of a dune face, not just part of it, otherwise erosion problems will be encountered.ĭon’t plant within 2m of the high water mark because marram has low salt tolerance. To plant a slope, start at the top and work downwards to avoid trampling on what you have just planted. On exposed sites, trim the growth to about 10cm so they are not loosened by the wind. Judge space according to the availability of plants. Tug the plants to check that they are firmly planted. Replace the sand firmly and make sure all roots are thoroughly covered. Where is is uncertain how healthy an individual plant is, plant a couple in each hole. Make a hole deep enough to get at least 15cm of root into damp sand, whilst planting as near as possible to the depth the grass was originally growing at. PlantingĪ sharp dibber is the best tool for planting. Heel them in if they need to be stored for more than a few hours. Make sure the plants are shaded and moist. Put all the plants into the bag the same way round. The easiest things to carry the plants in are clean old plastic sacks. Keep the roots covered and out of the sun – if they dry out, the plant will die. Tread back the disturbed soil to reduce erosion. Shake the plants gently to get rid of excess sand. Get as much rhizome as possible with each plant, preferably 30cm or more. Loosen a clump of marram with a spade or a fork, then pull the plants up by hand if possible. ![]() They are best obtained from the downwind side of mobile dunes.ĭon’t denude an area, but collect only one or two clumps per square metre. Young plants (those with fibrous roots) transplant better than older ones. Marram grass ( Ammophila avenaria) is the most common plant used in dune restoration. The most useful species to plant on bare sand and to initiate new dune development are the three natural dune-forming perennial grasses: sand couchgrass, sea lyme grass and marram. Hands-on techniques for managing sand dunes Dune Stabilisation Access work, building boardwalks to steer people away from sensitive sites, is also important. The idea is to help, not obstruct the dune-forming processes to conserve the dune ecosystem. Dune management involves restoring eroded areas and stabilising others using vegetation and fencing. ![]()
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