Dissolved Inorganic Nitrogen Input via Net Nitrogen Mineralization under Antibiotics and Warming from the Water Level Fluctuation Zone of a Three Gorges Tributary

The water level fluctuation (WLF) zone is one of the dominant sources total dissolved inorganic nitrogen (TDN) export via net (N) mineralization in Three Gorges Reservoir (TGR). However, antibiotics pollution may impact process TND exports from WLF TGR, especially under drying-rewetting processes and climate warming, thus increasing risk eutrophication tributaries TGR. effects Griseofulvin (GIN) Fosfomycin (FIN) with 0, 0.2 0.4 g kg−1 N rate (NMR) WLF-zone soil Pengxi river, a typical tributary Yangtze River, 25 35 °C were estimated 30−day flooding drying incubations. results showed that GIN concentrations, temperatures their interaction significantly affect net-nitrification rates (NNR) NMR did not NNR flooding. FIN concentrations solely influenced amounts TDN without River are 6883.8 (flooding, °C), 9987.3 9781.6 (drying, 27866.5 °C) t year−1, which 21.0, 29.8, 30.4 84.8 times permissible Class A discharge China according to (GB18918-2002). Thus, should be controlled whether there or not, during dry period for alleviating eutrophication. This study will helpful assessment budgets Reservoir.