Phosphate buffering in mangrove sediment pore water under eutrophication and deforestation influences.

Phosphorus (P) behavior was evaluated in mangrove wetlands impacted by urban sewage, including a deforested site. Sediment cores were analyzed for grain size, organic carbon, total nitrogen, stable isotopes (δC and δN), P contents, and pore water PO concentrations and net consumption/production rates. Under stronger eutrophication influence, significantly higher P (1390 vs.