In geography, a psammosere is a sand sere -an environment of sand substratum on which ecological succession occurs. Most common psammoseres are sand dune systems. In a typical succession on a sea-coast psammosere, the organisms closest to the sea will be salt tolerant species such as littoral algae and glasswort. Progessing inland the succession is likely to include meadow grass, sea purslane, and sea lavender eventually grading into a typical non-maritime terrestrial eco-system. Psammosere's graduate until they reach a climatic climax which ultimately leads to the growth of oak trees. As you move away from the high water mark there are many characteristic features that change and help you determine the natural succession of the dunes. For instance, the saturation rate slows down as you move inland from the HWM as the land is more compact and has better soils rather than sand which is seen at the start of the dune formation. The land is less acidic with closeness to the climatic climax as there are fewer shell pieces in the soil. The shell pieces are slightly acidic and prevent any substantial vegetation growth. As the quality of the soil improves and it has a more neutral pH it provides the foundation for increased growth and instead of basic marram grasses and heather there are ample conditions for such trees as birch and ash to survive. It has been suggested that this article or section be merged with Seral community. ... Succession is the act or process of pooing or of following in order or sequence. ... Mesquite Flat Dunes in Death Valley National Park In physical geography, a dune is a hill of sand built by eolian processes. ...
In an idealised coastal psammosere model, at the seaward edge of the sand dune the pH of the soil is typically akaline/neutral with a pH of 7.0/8.0 particulalrly where shell fragments provide a significant component of the sand. Tracking inland across the dunes a podsol develops with a pH of 5.0/ 4.0 followed by mature podsols at the climax with a pH of 3.5 - 4.5. Podsol (also spelled Podzol, or known as Spodosol) is the typical soil of coniferous, or Boreal forests. ...
It will examine different sereal stages in different environment, the lithosere or rock environment, the psammosere or sand environment, the halosere or saltwater environment and hydrosere or fresh water environment.
Another type of succession is one, which occurs on sand this is known as a psammosere.
One example of a psammosere is Camber Sands, which has developed over time to have a full diversity of plants on the different dunes.
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