WEPP 모형을 이용한 골프장 잔디 관리에 따른 유출특성 모의

• Published in: 한국물환경학회지 Vol. 28; no. 1; pp. 1 - 9
• Main Authors: 최재완, 신민환, 류지철, 금동혁, 강현우, 천세억, 신동석, 임경재, Choi, Jaewan, Shin, Min Hwan, Ryu, Ji Chul, Kum, Donghyuk, Kang, Hyunwoo, Cheon, Se Uk, Shin, Dong Seok, Lim, Kyoung Jae
• Format: Journal Article
• Language: Korean
• Published: 한국물환경학회 01.01.2012
• Subjects: 환경공학; Forest; Runoff; Cover degree; GeoWEPP; Golf course
• ISSN: 2289-0971; 2289-098X

It has been known that Golf course could impose negative impacts on water-ecosystem if pollutant-laden runoff is not treated well. It is important to control non-point source and re-use treated wastewater from the golf course to secure water quality of receiving waterbodies. At golf courses, the rainfall-runoff is affected by various practices to manage grasses. In many hydrological modelings, especially in simple rainfall-runoff modeling, effects on runoff of plant growth and cutting are not considered. In the study, the water erosion prediction project (WEPP), capable of simulating plant growth and various management, was evaluated for its runoff prediction from golf course under grass cutting and irrigation. The %Difference, $R^2$ and the NSE for runoff comparisons were 1.15%, 0.93 and 0.92 for calibration, and 18.12%, 0.82 and 0.88 for validation period, respectively. In grass cutting scenario, grass height was managed to be 18~25 mm. The estimated runoff was decreased by 27%. The difference in estimated total runoff was 11.8% depending on irrigation. As shown in this study, if grass management and irrigation are well-controlled, water quality of downstream areas could be obtained.