20200902_Identifying non-point source priority management areas in watersheds with multiple functional zones

 

1. Title, Journal, and Authors

Title: Identifying non-point source priority management areas in watersheds with multiple functional zones

Journal: Water research

Authors: Zhenyao Shen, Yucen Zhong, Qin Huang, Lei Chen*

State Key Laboratory of Water Environment, School of Environment, Beijing Normal University

 

2. Summary

This paper focuses on making plans for Non-point source management through MAU (Multiple Assessment Unit)-PMA (Primary Management Areas). The objectives are 1) to select the PMA in a watershed with multiple functional zones, 2) classify the multiple levels of PMA, and 3) explore the impact of seasonal hydrological conditions. Previous literature focuses on the land use or quality of nearby water bodies to analyze the PMA, but this paper mainly targets the concentrations in MAU. SWAT is utilized to predict water quality in each MAU.

Because the impacts of upstream are excluded in analyzing the PMA in this method, it is able to consider the concentration of this unit. Although previous models show that PMA in the wet season is higher than that of the dry season, this research shows the opposite aspects. Because the dilution effect in the wet season to the concentration is larger than in dry season, dry season shows the bigger impacts. And, the MAU-PMA method is considered from month to month, it is more effective and economic than previous researches. For future research, it is needed to develop the watershed-specialized water quality index to decide the reasonable PMA.

 

3. Originality and Creativity

PMA is considered by the concentration in each MAU when the condition of the impacts of upstream is excluded. I think this point is the originality of this paper.

 

5. Contact

Dae Seong Jeong / Integrated Ph.D. program

 

Environmental Systems Engineering Lab.

School of Earth Sciences and Environmental Engineering

Gwangju Institute of Science and Technology

1 Oryong-dong Buk-gu Gwangju, 500-712, Korea

 

Phone : +82-10-2003-7860

E-mail : jeongds92@gist.ac.kr