Abstract
Salt marshes are located between land and coastal water environments, and nutrient and production dynamics within salt marshes interact with those of adjoining ecosystems. Salt marshes tend to export materials to deeper waters, as shown by mass balance and stable isotopic studies. Salt marshes also intercept land-derived nutrients, and thus modify the potential response of phytoplankton, macroalgae, and seagrasses in the receiving estuarine waters. In particular, the maintenance of eelgrass meadows seems to depend on the ability of fringing salt marshes to intercept land-derived nitrogen. The bulk of the interception of land-derived nitrogen is likely to be the result of relatively high rates of denitrification characteristic of salt marshes. Thus, through exports of energy-rich materials, and interception of limiting nutrients, salt marsh parcels interact in quantitatively important ways with adjoining units of landscape. These interactions are of importance in understanding the basic functions of these mosaics of different coastal systems, as well as provide information needed to manage estuaries, as for example, in conservation of valuable eelgrass meadows.
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Valiela, I., Cole, M.L., Mcclelland, J., Hauxwell, J., Cebrian, J., Joye, S.B. (2002). Role of Salt Marshes as Part of Coastal Landscapes. In: Weinstein, M.P., Kreeger, D.A. (eds) Concepts and Controversies in Tidal Marsh Ecology. Springer, Dordrecht. https://doi.org/10.1007/0-306-47534-0_3
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DOI: https://doi.org/10.1007/0-306-47534-0_3
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