Composition, release and controls of sediment phosphorus in estuaries near shrimp aquaculture areas
Bo Yang·Zenjun Kang·Zhiming Ning·Xinzhuang Wang·Jie Xu·Qin Li·Jiaodi Zhou·Lei Xie·Haifang Huang·Bin Yang·Dongliang Lu
Chemical sequential extraction and high-resolution diffusive gradients in thin-film (DGT) techniques were employed to study the mobilization behavior and underlying mechanisms of phosphorus (P) in estuarine sediments. This study focused on two contrasting subtropical estuaries in the Maowei Sea, northern Beibu Gulf: the Maoling River Estuary (MLRE, dominated by natural processes) and the Qin River Estuary (QRE, influenced by coastal shrimp pond effluent). Sediment samples were collected in Decem