title: [Nutrient Exchange Between Meixi River and Yangtze River Due to the Typical Interaction Process of the Three Gorges Reservoir and Its Tributary].
abstract: Frequent algal blooms have been observed in the Meixi bay of the Three Gorges Reservoirs (TGR) since its initial filling. In order to understand the effects of intrusions from Changjiang mainstream on the nutrient supply of the Meixi Bay, a detailed field monitoring was conducted from August 2012 to July 2013. The results showed that there were significant intrusions from the mainstream to the Meixi Bay during the different water level scheduling periods of the TGR. As a result, the invading flow from the mainstream of the Changjiang caused a significant effect on the nutrient distribution in the Meixi River. Annually, the mainstream transportednet fluxes of 5 478.02 t DIN, 234.04 t DIP and 5 935.22 t DSi to the Meixi Bay, which were 2.37 times, 4.32 times and 1.33 times of the corresponding fluxes from the upstream, respectively. The influence on the nutrient distributions was not only limited in the estuary area but also in the upper reaches, the supply of DIP changed the nutrient structure and relieved the P restrictions on phytoplankton growth.
authors.forename: Man
authors.initials: M
authors.lastname: Cao
authors.forename: Jia-nan
authors.initials: JN
authors.lastname: Fu
authors.forename: Zi-ran
authors.initials: ZR
authors.lastname: Zhou
authors.forename: Bing
authors.initials: B
authors.lastname: Deng
authors.forename: Yu-chun
authors.initials: YC
authors.lastname: Wang
authors.forename: Fu-shun
authors.initials: FS
authors.lastname: Wang
mesh_terms: D002681:China; D004784:Environmental Monitoring; D005068:Eutrophication; D010839:Phytoplankton / Q000254:growth & development*; D045483:Rivers / Q000737:chemistry*