title: [Seasonal Stratification and the Response of Water Quality of a Temperate Reservoir--Zhoucun Reservoir in North of China].
abstract: In order to reveal the seasonal stratification and the response of water quality of a temperate reservoir Zhoucun Reservoir in North of China. The physical, chemical and phytoplankton indexes were continuously monitored from July 2014 to June 2015. The results showed that the thermal stratification was monomictic, which lasted from April to October. The thermal stratification played an important role in the change of water environment. The hypoxia in the bottom water caused hy thermal stratification led to the release of nutrients and reductants from sediment. During the stratification period, the mean concentrations of total nitrogen, total phosphorus, manganese and sulfide were 1.18, 0.11, 0.47 and 0.48 mg · L⁻¹, respectively. The vertical distribution of phytoplankton was significantly influenced by water temperature stratification. During the thermal stratification period, phytoplankton abundance was higher and the average phytoplankton ahundance was 16.35 x 10⁶ cells · L⁻¹ in the upper water of the reservoir, while remained at low levels at the bottom.
authors.forename: Ming-zheng
authors.initials: MZ
authors.lastname: Zeng
authors.forename: Ting-liri
authors.initials: TL
authors.lastname: Huang
authors.forename: Xiao-peng
authors.initials: XP
authors.lastname: Qiu
authors.forename: Ya-ping
authors.initials: YP
authors.lastname: Wang
authors.forename: Jian-chao
authors.initials: JC
authors.lastname: Shi
authors.forename: Shi-lei
authors.initials: SL
authors.lastname: Zhou
authors.forename: Fei
authors.initials: F
authors.lastname: Liu
mesh_terms: D002681:China; D004784:Environmental Monitoring; D008345:Manganese / Q000032:analysis; D009584:Nitrogen / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D010839:Phytoplankton / Q000302:isolation & purification; D012621:Seasons; D013440:Sulfides / Q000032:analysis; D013696:Temperature; D060753:Water Quality; D014881:Water Supply
chemical_list: D013440:Sulfides; D010758:Phosphorus; D008345:Manganese; D009584:Nitrogen