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A simplified conception model for salt marsh sedimentation rate calculation; response to changing suspended sediment concentration; a case study of Wanggang salt marsh, Jiangsu Province, China



A simplified conception model for salt marsh sedimentation rate calculation; response to changing suspended sediment concentration; a case study of Wanggang salt marsh, Jiangsu Province, China



Frontiers of Earth Science in China 4.4



Situated at the junction of land and sea, coastal salt marshes are very sensitive to global environmental changes. Existing numerical models simulating the vertical growth of coastal salt marshes are under the conditions of low suspended sediment concentration (SSC), but under high SSC, such as in the Jiangsu coast of China, the models need to be refined. In this paper, based on the mass balance principle, a refined zero-dimensional time-stepped model is applied after considering the average suspended sediment concentration (ASSC). The statistical results of in situ observation data show that there is an obvious positive linear relationship between ASSC and maximum inundation height, and an obvious positive exponential one between inundation time and inundation height. Using the short-term measurement values for the input parameters and incorporating the above-mentioned relationship between SSC and inundation height, the sedimentation rates are calculated, and the results are similar to previous data. In addition, some factors and hydrodynamic processes that were ignored or simplified could influence the calculated value. Copyright 2010 Higher Education Press and Springer-Verlag Berlin Heidelberg

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Accession: 036991750

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DOI: 10.1007/s11707-010-0123-4


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