Sediment accretion and variability of sedimentological characteristics of a tropical estuarine mangrove: Kemaman, Terengganu, Malaysia |
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Authors: | Shahbudin Saad Mohd Lokman Husain Rosnan Yaacob Toshiyuki Asano |
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Institution: | (1) Department of Ocean Civil Engineering, Kagoshima University, Korimoto, 890 Kagoshima, Japan;(2) Faculty of Science and Technology, University Putra Malaysia Terengganu, 21030 Kuala Terengganu, Malaysia |
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Abstract: | This paper reports on a study of accretion rate and sedimentological variability in a estuarine mangrove swamp. One hundred and sixteen stations were monitored for 2 years. In addition, surface sediment samples were collected at 52 stations during the months of May, June and July (1994) to represent the non monsoon sediments and November, December (1994) and January (1995) to represent the monsoon sediments. Results show that the accretion rate for the first year was 1.46±0.13 cm/yr and 0.66±0.04 cm/yr for the second year thus making the average accretion for the 2 years period to be 1.06 cm/yr. The average accretion rate for the monsoon season (0.26 ± 0.04 cm/month) was found to be significantly higher than the non monsoon season (0.12 ± 0.03 cm/month). Nevertheless, the same is not true for the surface sediment characteristics. The sedimentological characteristics between the monsoon and the non monsoon sediments were not significantly different. |
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Keywords: | deposition seasonal changes surface sediment suspended sediment tides vertical accretion |
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