Development of Wetland Water Quality and Ecosystem Models
Date Issued
2005
Date
2005
Author(s)
Yang, Chou-Ping
DOI
zh-TW
Abstract
The purpose of this study was to develop wetland water quality and ecosystem models. The observed hydrologic, hydrodynamic, water quality and ecosystem data for model calibration and verification included from the Ben-Chou Industrial Park wet detention pond and the Erh-Chung Flood Way wetland. The RMA2 and WASP/EUTRO5 models were used as the basic framework with modifications and enhancement of kinetics to incorporate ecosystem dynamics and sediment-water interactions. The developed modeling framework was applied to Erh-Chung Flood Way wetland with a 2-D spatial configuration. To aid model development and model calibration and verification, a field sampling program was conducted from November 2002 through April 2003 at a frequency of once a month to gather data from Erh-Chung Flood Way wetland. Field sampling included hydrodynamic, water quality, and ecosystem data. The first part of this research was to develop a simplified water quality model for wetland, for which the data was collected from the wet detention pond at Ben-Chou Industrial Park of Kaohsiung County. The second part was to develop one-dimensional mass transport model and two-dimensional depth-averaged hydrodynamic and water quality models as well as water quality and ecosystem models. These models were applied to the Erh-Chung Flood Way wetland in northern Taiwan and configured the model based on WASP. First, one-dimensional mass transport of EUTRO5 model was developed to simulate salinity, suspended solids, and heavy metals concentrations. Favorable model calibration results were obtained. That followed the development of a two-dimensional depth-averaged hydrodynamic and water quality models. Hydrodynamic and water quality studies employed RMA2 and WASP/EUTRO5 models, respectively. Results from the RMA2 model were used to develop mass transport for the WASP/EUTRO5 mdoel. Finally, a two-dimensional depth-averaged water quality and ecosystem model was developed to simulate heavy metals and ecosystem in the wetland ecosystem. The models also considered sediments and aquatic plants mechanism.
Subjects
水理模式
水質及生態模式
質量傳輸模式
最佳管理作業
WASP/EUTRO5
濕地
RMA2
hydrodynamic model
mass transport model
water and ecosystem models
Best Management Practices (BMPs)
wetland
SDGs
Type
thesis
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