Determination of standard target water quality in the Nakdong River basin for the total maximum daily load management system in Korea

Lee, Ayeon; Cho, Seonju; Park, Moo Jong; Kim, Sangdan

doi:10.1007/s12205-013-1893-5

Cited by 10 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this comprehensive assessment is unenforceable for data-scarce regions. Moreover, using different control strategies may cause controversy over fairness in local governments, threatening management implementation [ 53 ]. As a result, the MHE model presented a more feasible idea to fulfill in the whole river basin.…”

Section: Discussionmentioning

confidence: 99%

“…Meanwhile, during low flow periods, the dominant pollutant threat was from a point source, while nonpoint source pollutions appear in rainy seasons because of the stronger water flush processes. The allocation of WECs for these two pollution types should be considered separately in terms of different flow regimes [ 20 , 53 , 59 ]. Therefore, the unitary LFI consideration in current management may be inadequate, especially for non-point source diagnosis and control.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

New Framework for Dynamic Water Environmental Capacity Estimation Integrating the Hydro-Environmental Model and Load–Duration Curve Method—A Case Study in Data-Scarce Luanhe River Basin

Jin

Chen

Zhao

et al. 2022

IJERPH

View full text Add to dashboard Cite

A better understanding of river capacity for contaminants (i.e., water environmental capacity, WEC) is essential for the reasonable utilization of water resources, providing government’s with guidance about sewage discharge management, and allocating investments for pollutant reduction. This paper applied a new framework integrating a modified hydro-environmental model, Soil and Water Assessment Tool (SWAT) model, and load–duration curve (LDC) method for the dynamic estimation of the NH3-N WEC of the data-scarce Luanhe River basin in China. The impact mechanisms of hydrological and temperature conditions on WEC are discussed. We found that 77% of the WEC was concentrated in 40% hydrological guarantee flow rates. While the increasing flow velocity promoted the pollutant decay rate, it shortened its traveling time in streams, eventually reducing the river WEC. The results suggest that the integrated framework combined the merits of the traditional LDC method and the mechanism model. Thus, the integrated framework dynamically presents the WEC’s spatiotemporal distribution under different hydrological regimes with fewer data. It can also be applied in multi-segment rivers to help managers identify hot spots for fragile water environmental regions and periods at the basin scale.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

New Framework for Dynamic Water Environmental Capacity Estimation Integrating the Hydro-Environmental Model and Load–Duration Curve Method—A Case Study in Data-Scarce Luanhe River Basin

Jin

Chen

Zhao

et al. 2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…The concept of 'water environmental capacity' in China was first introduced from Japan's 'environmental capacity' (Dong et al, 2014). The concept is a synonym of 'assimilation capacity' and 'total maximum daily load' which are normally used in the United States (Kim et al, 2012;Fakhraei et al, 2014;Gulati et al, 2014), Canada (Elshorbagy et al, 2005), and other countries (Leandri, 2009;Lee et al, 2013). The calculation methods of assimilation capacity (Gupta et al, 2004) and total maximum daily load (Camacho et al, 2018) also provided some reference for the study of the water environment in China.…”

Section: Introductionmentioning

confidence: 99%

Calculation of water environmental capacity of large shallow lakes – a case study of Taihu Lake

Wang

Bao

et al. 2020

Water Policy

View full text Add to dashboard Cite

Lake currents have an important impact on distribution of pollutant concentrations in large shallow lakes. Taking Taihu Lake as an example, in view of the characteristics of wind-driven water flow in the lake, this paper puts forward a water environmental capacity calculation method that uses wind direction and wind speed combined frequency to provide joint correction and pollution zone control for the designed hydrological conditions. In the study, the total length of the pollution belt was controlled to be 10% of the length of the study area, and a mathematical model of two-dimensional unsteady water quantity and quality in Taihu Lake was established. By analyzing the hydrological water quality characteristics and measured data of Taihu Lake in recent years, the flow field and concentration field were simulated and verified, the mathematical model and the plausibility of the parameters were calibrated. The water environmental capacity of Taihu Lake basin was calculated by this method. The calculated results showed that the water environmental capacity of chemical oxygen demand (COD), total phosphorus (TP), and total nitrogen (TN) in Taihu Lake were 113,331 t·a−1, 479 t·a−1 and 6,521 t·a−1. By providing a technical basis for total pollutant control and management in Taihu Lake basin, this study is conducive to the planning and management of water environment.

show abstract

Building an XGBoost model based on landscape metrics and meteorological data for nonpoint source pollution management in the Nakdong river watershed

Hee Shim,

Hyun Choi

2024

Ecological Indicators

View full text Add to dashboard Cite

Determination of standard target water quality in the Nakdong River basin for the total maximum daily load management system in Korea

Cited by 10 publications

References 7 publications

New Framework for Dynamic Water Environmental Capacity Estimation Integrating the Hydro-Environmental Model and Load–Duration Curve Method—A Case Study in Data-Scarce Luanhe River Basin

New Framework for Dynamic Water Environmental Capacity Estimation Integrating the Hydro-Environmental Model and Load–Duration Curve Method—A Case Study in Data-Scarce Luanhe River Basin

Calculation of water environmental capacity of large shallow lakes – a case study of Taihu Lake

Building an XGBoost model based on landscape metrics and meteorological data for nonpoint source pollution management in the Nakdong river watershed

Contact Info

Product

Resources

About