title: [Numerical simulation for effects of hydrodynamic condition on algae growth in Chongqing reaches of Jialing River].
abstract: By introducing two parameters which express the optimal velocity and the velocity range for alga growth, a new velocity factor was put forward for the formula of alga growth. The 2-D unsteady ecological dynamic model for algae growth was established to analyze the effects of hydrodynamic condition on algae growth in Chongqing reaches of Jialing River. The space-time distribution of concentration for Chl-a was simulated numerically for various water levels under climate condition in the period of high frequency for water blooms in Three Gorges Reservoir and nutrition condition at present. The corresponding location and area of water blooms were forecasted. The results stated that about 0.04 m x s(-1) was the optimal velocity for algae growth.
authors.affiliation: Key Laboratory of the Three Gorges Reservoir Area Ecological Environment, Ministry of Education, Chongqing University, Chongqing 400045, China. longty128@yahoo.com.cn
authors.forename: Tian-yu
authors.initials: TY
authors.lastname: Long
authors.forename: Guo-hu
authors.initials: GH
authors.lastname: Meng
authors.forename: Lei
authors.initials: L
authors.lastname: Wu
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhang
authors.forename: Wei-hua
authors.initials: WH
authors.lastname: Guo
mesh_terms: D002681:China; D003198:Computer Simulation; D005068:Eutrophication; D005618:Fresh Water / Q000032:analysis*; D057446:Hydrodynamics; D008962:Models, Theoretical; D045483:Rivers; D014877:Water Pollution, Chemical / Q000032:analysis