. Coast Watch. Risorse Marine; oceanografia; gestione delle zone costiere; ecologia costiera. Circa il Mare Mare Avena Avena sono importanti per le spiagge perché aiutano a intrappolare il vento soffiato sabbia e stabilizzare le dune per altre piante a colonizzare. Essi sono considerati una specie pioniere, che di solito colonizza una zona prima, modifica la environ- mento e quindi è riuscita da altre specie. Prendono il nome dalla grande plumes producono in estate. Questi pennacchi assomigliano a quelle di avena. I semi sui pennacchi sono principalmente dispersa dal vento. • Le funzioni ecologiche mare avena stabilizzare sabbia e fornire un

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. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. About Sea Oats Sea oats are important to beaches because they help trap wind-blown sand and stabilize dunes for other plants to colonize. They are considered a pioneer species, which usually colonizes an area first, modifies the environ- ment and then is succeeded by other species. They get their name from the large plumes they produce in the summer. These plumes resemble those of oats. The seeds on the plumes are dispersed primarily by the wind. • Ecological Functions Sea oats stabilize sand and provide a source of food and cover for birds and small mammals. • Distribution Sea oats live on coastal dunes from Virginia to Florida and Gulf states. They are adapted to well- drained, sandy and calcareous soils. Their resistance to erosion is good once they're established. Sea oats withstand wind erosion well, but waves wash the soil out from under them. Their potential growth rate depends on environmental condi- tions and maintenance. The plants can grow laterally several feet per year. Once established, sea oats can provide dense cover in three growing seasons. They will flower in the second or third year. • Maintenance When planted, they should be watered if necessary for the first few months, depending on rainfall. They should get 1 teaspoon per plant of a balanced, time release fertilizer when planted. Exotic plants should be removed. After sea oats have established, they should be clipped to produce more sprouts. ? Making a Case for North Carolina Sea Oats For all of their sand-accumulating assets, sea oats are not used much to restore North Carolina dunes. These seaside sentries have fallen out of favor as planting materials because they're difficult to get in quantity and, consequently, they're expensive. Most of the sea oats used to repair dunes locally are ordered from Florida nurseries, where they are grown out from seeds in greenhouses, says David Nash, an agricultu

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• bookcentury1900
• bookcollectionunclibra
• booksubjectoceanography