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Table 6 The sediment physiochemical parameters including pH (n = 9), nitrogen (n = 9), carbon (n = 9), organic matter (n = 9), sulfur (n = 9), δ34S (n = 9) and particle sizes (n = 3) in the initial stage of the three sediment types with in-situ sediment combination with different ratio of coarse beach send. 1:0, the in-situ sediment without combining with coarse beach sand was added in the tank; 1:1, the combination of half in-situ sediment and half coarse beach sand was added in the tank; 1:2, the combination of 1/3 in-situ sediment and 2/3 coarse beach sand was added in the tank

From: Sand supplementation favors tropical seagrass Thalassia hemprichii in eutrophic bay: implications for seagrass restoration and management

Sediment type pH N (%) C (%) Organic matter (%) S (%) δ34S (‰) Particle sizes
Coarse sand (%) Medium sand (%) Fine sand (%) Very fine sand (%) Silt (%) Clay (%)
1:0 8.83 ± 0.04a 0.034 ± 0.005b 0.344 ± 0.059b 1.38 ± 0.11a 0.017 ± 0.001b −0.80 ± 0.49a 0.254 31.237 58.067 3.628 5.244 1.570
1:1 8.64 ± 0.02b 0.025 ± 0.002a 0.253 ± 0.029ab 1.11 ± 0.17b 0.013 ± 0.005ab 1.09 ± 1.14ab 6.274 44.017 41.076 3.842 3.369 1.422
1:2 8.92 ± 0.04c 0.020 ± 0.003a 0.216 ± 0.045a 0.90 ± 0.03b 0.009 ± 0.001a 2.60 ± 1.19b 11.185 44.667 35.584 4.149 3.842 0.573
  1. The different lower case letters indicated significant differences among treatments