[Study on distribution of phosphorus in surface sediments of the Yellow Sea and the East China Sea].
Different phosphorus compositions (TP, IP and OP) were determined in surface sediments of the Yellow Sea (YS) and the East China Sea (ECS),sampled from two cruises between March and June, 2011. The results showed that, contents of TP were from 10.50 micromol x g(-1) to 24.10 micromol x g(-1), IP ranged from 7.14 micromol x g(-1) to 17.10 micromol x g(-1) was the major phosphorus speciation accounting for more than 70% in TP. The percent of IP in TP at most stations was between 50% and 90% , only four stations which lied in the East China Sea with the percent was over 90%. The dominant factors affecting the phosphorus concentration and distribution in surface sediments were anthropogenic activities, sources of input materials, grain size, depositional environments and hydrological conditions. TP burial flux (TPBF) that appeared regional differences was affected by sedimentation rates, porosity and oxygen in bottom water, but TP content and sedimentation rates were crucial factors for TPBF.
Guo-Dong
GD
Song
Su-Mei
SM
Liu
Guo-Ling
GL
Zhang
D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D009792:Oceans and Seas; D010758:Phosphorus / Q000032:analysis*; D012623:Seawater / Q000737:chemistry
D010758:Phosphorus