|
|
|
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 |
Aijun WANG( ) |
| Open Laboratory of Ocean and Coast Environmental Geology, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China |
|
|
|
|
Abstract 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.
|
| Keywords
coastal salt marshes
sedimentation rate
suspended sediment concentration (SSC)
Jiangsu coast
|
|
Corresponding Author(s):
WANG Aijun,Email:ajwang@163.com
|
|
Issue Date: 05 December 2010
|
|
| 1 |
Allen J R L (1990). Salt marsh growth and stratification: a numerical model with special reference to the Severn Estuary, southwest Britain. Mar Geol , 95(2): 77-96
doi: 10.1016/0025-3227(90)90042-I
|
| 2 |
Allen J R L (2000). Morphodynamics of Holocene salt marshes: A review sketch from the Atlantic and Southern North Sea coasts of Europe. Quat Sci Rev , 19(12): 1155-1231
doi: 10.1016/S0277-3791(99)00034-7
|
| 3 |
Armentano T V, Woodwell G M (1975). Sedimentation rates in a Long Island marsh determined by 210Pb dating. Limnol Oceanogr , 20(3): 452-456
doi: 10.4319/lo.1975.20.3.0452
|
| 4 |
Cahoon D R, French J R, Spencer T, Reed D, M?ller I (2000). Vertical accretion versus elevational adjustment in UK saltmarshes: an evaluation of alternative methodologies. In: Pye K, Allen J R L, eds. Coastal and Estuarine Environments: Sedimentology, Geomorphology and Geoarchaeology . London: The Geological Society, 223-238
|
| 5 |
Callaway J C, Delarne R D, Patrick W H (1997). Sediment accretion rates from four coastal wetlands along the Gulf of Mexico. J Coast Res , 13(1): 181-191
|
| 6 |
Chen C J (1990). Changes in mud flat alter tideland being enclosed. Marine Science Bulletin , 9(3): 69-74 (in Chinese)
|
| 7 |
Chen Y N, Gao S, Jia J, Wang A (2005). Tidalflat ecological changes by transplanting Spartina angelica and Spartina alterniflora, northern Jiangsu Coast. Oceanol Limnol Sin , 36(5): 394-403 (in Chinese)
|
| 8 |
Christiansen T, Wiberg P L, Milligan T G (2000). Flow and sediment transport on a tidal salt marsh surface. Estuar Coast Shelf Sci , 50(3): 315-331
doi: 10.1006/ecss.2000.0548
|
| 9 |
Davidson-Arnott R G D, van Proosdij D, Ollerhead J, Schostak L (2002). Hydrodynamics and sedimentation in salt marshes: examples from a macrotidal marsh, Bay of Fundy. Geomorphology , 48(1-3): 209-231
doi: 10.1016/S0169-555X(02)00182-4
|
| 10 |
French J R (1993). Numerical simulation of vertical marsh growth and adjustment to accelerated sea-level rise, North Norfolk, UK. Earth Surf Process Landf , 18(1): 63-81
doi: 10.1002/esp.3290180105
|
| 11 |
Frey R W, Basan P B (1985). Coastal Saltmarshes. In: Davies R A, ed. Coastal Sedimentary Environments . New York: Springer-Verlag, 225-301
|
| 12 |
Gao S, Collins M B (1997). Formation of salt-marsh cliffs in an accretional environment, Christchurch Harbour, southern England. In: Wang P X, Bergran W, eds. Proceedings of the 30th International Geological Congress . Amsterdam: VSP Press, 95-110
|
| 13 |
Gibbs R J (1985). Estuarine flocs: their size, settling velocity and density. J Geophys Res , 90(C2): 3249-3251
doi: 10.1029/JC090iC02p03249
|
| 14 |
Krone R B (1987). A method for simulating historic marsh elevations. In: Kraus N C, ed. Coastal Sediments’87 . New York: American Society of Civil Engineers, 316-323
|
| 15 |
Leonard L A, Luther M E (1995). Flow hydrodynamics in tidal marsh canopies. Limnol Oceanogr , 40(8): 1474-1484
doi: 10.4319/lo.1995.40.8.1474
|
| 16 |
Li Z (2003). Sediment dynamic process of inter-tidal flats, Dafeng, northern Jiangsu, China. Dissertation for the Doctoral Degree . Nanjing:Nanjing University, 142pp. (in Chinese)
|
| 17 |
Nyman J A, DeLarne R D, Roberts H H, Patrick W H Jr (1993). Relationship between vegetation and soil formation in a rapidly submerging coastal marsh. Mar Ecol Prog Ser , 96(3): 269-279
doi: 10.3354/meps096269
|
| 18 |
Pethick J S (1981). Long-term accretion rates on tidal salt marshes. J Sediment Petrol , 51: 571-577
|
| 19 |
Pethick J S (1992). Salt marsh geomorphology. In: Allen J R L, Pye K, editors. Salt Marshes: Morphodynamics, Conservation and Engineering Significance . Cambridge: Cambridge University Press, 41-62
|
| 20 |
Ren M E (1986). Comprehensive Investigation of Coastal Zone and Tidal Land Resources of Jiangsu Province. Beijing: China Ocean Press, 517 (in Chinese)
|
| 21 |
Ren M E (1989). Human impact on the coastal morphology and sedimentation of north China. Scientia Geographica Sinica , 9(1): 1-7 (in Chinese)
|
| 22 |
Ren M E, Zhang R S, Yang J H (1983). Sedimentation on tidal mud flat of Wanggang area, Jiangsu Province, China. Collected Oceanic Works , 6(2): 84-108
|
| 23 |
Ren M E, Zhang R S, Yang J H (1985). Effect of typhoon no.8114 on coastal morphology and sedimentation of Jiangsu Province, China. J Coast Res , 1: 21-28
|
| 24 |
State Oceanic Administration (2004). 2003 Sea Level Report of China. Beijing: State Oceanic Administration, 18 (in Chinese)
|
| 25 |
Temmerman S, Govers G, Meire P, Wartel S (2003). Modelling long-term tidal marsh growth under changing tidal conditions and suspended sediment concentrations, Scheldt estuary, Belgium. Mar Geol , 193(1-2): 151-169
doi: 10.1016/S0025-3227(02)00642-4
|
| 26 |
Wang A J, Gao S, Jia J J, Pan S M (2005). Sedimentation rates in the Wanggang salt marshes, Jiangsu. J Geogr Sci , 15(2): 199-209 (in Chinese)
|
| 27 |
Wang A J, Ye X, Chen J (2009). Effects of typhoon on sedimentary processes of embayment tidal flat. Acta Oceanol Sin , 31(6): 77-86 (in Chinese)
|
| 28 |
Wang Y P, Gao S, Jia J J (2006). High-resolution data collection for analysis of sediment dynamic processes associated with combined current-wave action over intertidal flats. Chin Sci Bull , 51(7): 866-877
doi: 10.1007/s11434-006-0866-1
|
| 29 |
Yang S L (1998). The role of Scirpus marsh in attenuation of hydrodynamics and retention of fine sediment in the Yangtze Estuary. Estuar Coast Shelf Sci , 47(2): 227-233
doi: 10.1006/ecss.1998.0348
|
| 30 |
Yang S L, Friedrichs C T, Shi Z, Ding P, Zhu J, Zhao Q (2003). Morphological response of tidal marshes, flats and channels of the outer Yangtze River mouth to a major storm. Estuaries , 26(6): 1416-1425
doi: 10.1007/BF02803650
|
| 31 |
Yang S L, Li P, Gao A, Zhang J (2006). Observation of hydrographic and sedimentary processes over an intertidal flat based on ADP-XR and OBS-3A. Acta Oceanol Sin , 28(5): 56-63 (in Chinese)
|
| 32 |
Zhuang W Y, Shebel J (1991). Influence of seagrass on tidal flat sedimentation. Acta Oceanol Sin , 13(2): 230-239 (in Chinese)
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
