The Role of Vegetation in Coastal Development in Sand Dunes and Salt Marshes

Role of vegetation in the development of sand dunes and salty wetlands (a) Before considering the role of vegetation, summarize the general conditions that contribute to the formation of sand dunes, the sand dunes in the development of coastal sand dunes are in biological process May be useful for putting. Factors that contribute to the formation of sand dunes include the outstanding high-altitude wind blowing through a wide intertidal zone. It dries the top sand during the tide and causes wind movement.

Because the sand dune is formed by wind instead of flowing water, it is unique in other coastal landscapes and represents the sand retention beyond the usual land area with high altitude, flood of sea water to keep stability Is irrelevant. France, 2001). They provide an ideal coastal defense system; vegetation is essential for the survival of sand dunes, as their roots combine sediments and promote accumulation of sediment deposits through windshields. During the storm, the waves can reach the front of the dunes and pull the sand to the beach to form a stormy beach contour; during the usual season the wind blows sand back into the dunes. In the construction and reconstruction of sand dunes, we can combine sand barriers and mesh mats with vegetation planting to create sand dunes well by catching sediments and colonizing vegetation. The vegetation used should be managed by existing species such as malam, beach glass and lime grass.

Natural changes such as wind, temperature and precipitation can affect coastal sand dunes. The wind brought by wind energy influences the movement of the beach along the beach and contributes to the formation of dunes. Rainfall affects the nature of the vegetation growing on the dunes and eventually affects the strength of the dunes system. The temperature affects the time it takes to get wet from receiving the influence of the dry condition of sand dunes and wave. Constructive winds and destructive winds also influence the size of coastal dunes ecosystems to determine whether sand is added or removed. Global warming and sea level rise are another natural influence of the coastal dunes ecosystem. High temperatures around the world can cause sea level rise, leading to destruction of coastal dunes and their vegetation and erosion of the land. Introduction of alien species has its advantages and disadvantages. Introducing rabbits in Australia has had disastrous results