[1]LI Feng-huan,LUO Lian-cong,ZHAI Hai-tao,et al.Simulation of Runoff Parameters with SWAT in Dashahe Reservoir Watershed[J].Research of Soil and Water Conservation,2014,21(02):87-93.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 02
Page number:
87-93
Column:
Public date:
2014-04-28
- Title:
-
Simulation of Runoff Parameters with SWAT in Dashahe Reservoir Watershed
- Author(s):
-
LI Feng-huan1, LUO Lian-cong2,3, ZHAI Hai-tao1,2, SUN Ying-bei1,2, LI Hui-yun3,4
-
1. Department of Ecology, Ji’nan University, Guangzhou 510632, China;
2. Institute of Resources, Environment and Sustainable Development, Ji’nan University, Guangzhou 510632. China;
3. Nanjing Institute of Geography & Limnology, Nanjing 210008, China;
4. Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institutes, Guangzhou 510632, China
-
- Keywords:
-
ArcSWAT2009; runoff simulation; sensitivity analysis; auto-calibration
- CLC:
-
TV121.4
- DOI:
-
-
- Abstract:
-
Dashahe Reservoir is the main source of drinking water for Kaiping City, Guangdong Province. With increasing pollution of inflow waters arising from developments of animal farming, industry and agriculture, the reservoir is now eutrophic and the external loadings need to be reduced for water quality regulation. For testing its availability for subtropical area and water environment management, ArcSWAT2009 was applied to simulate and evaluate the river inflows of Dashahe Reservoir. LH-OAT method was used for sensitivity analysis. 15 parameters were sensitive to the simulation of river inflows. Auto-calibration and validation were conducted based on observed inflows data during 2003—2012. The results indicated that the LH-OAT method could effectively find out the sensitive parameters. The monthly simulations had a better result than the daily simulations, the monthly coefficients of determination (R2) were 0.884 and 0.911 and Nash-suttcliffes coefficients were 0.879 and 0.907, respectively, which suggests that SCE-UA is effective for SWAT calibration at Dashahe Reservoir catchment and SWAT model might be externally applied for water environment management in this area.