Spatial-temporal variations of phosphorus fractions in surface water and suspended particles in the Daliao River Estuary, Northeast China
作者： Lei Zhang , Yanwen Qin , Chaonan Han , Wei Cao , Yingqun Ma
DOI: 10.1007/S11356-016-6517-4
关键词: Sediment 、 Estuary 、 Environmental science 、 Phosphorus 、 Water environment 、 Seawater 、 Surface water 、 Biogeochemical cycle 、 Hydrology 、 Saline water
摘要: The transport and storage of phosphorus in estuary is a complex biogeochemical process as the result convergence fresh saline water. objective current study to investigate spatial-temporal variations fractions surface water suspended particles Daliao River Estuary, China. Samples were collected August (wet season) November (dry season), 2013. results showed that total particulate (TPP) accounted for more than 50 % (TP). Meanwhile, particles, 62 % was form bioavailable phosphorus, including exchangeable (Exc-P), extractable organic (Exo-P), iron-bound (Fe-P), which meant potential impacts on estuarine environment cannot be ignored. There significantly seasonal Estuary. concentrations wet season much lower dry because dilution effect larger rainfall season. In addition, spatial distribution characteristics also obvious. Due terrigenous input from upstream tidal reach seawater coastal estuary, dissolved (TDP) gradually decreased estuary. However, TPP TP Exo-P presented fluctuation, these greatly attributed sediment re-suspension
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