Nitrogen in Sediments of the Nansha Islands Waters

Marine sediments are different in grain size and in content as a result of washing, erosion, transportation, and sorting in seawater with their own particular physical-chemical characteristics. 

The study area is 25,390 km calculated by girding simulated computation. The amoimt of different forms of nitrogen in surface sediments in the study area was calculated by the formula below (Table 5.15, Zheng et al., 2008)  

Location Sediment type lEF-N SABF-N WABF-N SOEF-N TN 

Bohai central basin Silt-clay ooze 7.58 0.21 0.47 36.94 173.33 

South Yellow Sea outer shelf Silt-clay silt 1.88 0.61 1.03 13.15 45.63 

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