This study was performed to analyze the effects of a water circulation green area plan on non-point source pollution in Gimhae South Korea. A quantitative analysis of Arc-GIS data was conducted by applying a watershed model based on Fortran to investigate the changes to direct runoff and pollution load. Results showed that prior to the implementation of the water circulation green area plan in Gimhae, direct runoff was 444.05 m3/year, total biological oxygen demand (BOD) pollution load was 21,696 kg/year, and total phosphorus (TP) pollution load was 1,743 kg/year. Implementation of the development plan was found to reduce direct runoff by 2.27%, BOD pollution load by 1.16% and TP pollution load by 0.19% annually. The reduction in direct runoff and non-point source pollution were attributed to improvements in the design of impermeable layers within the city.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 대상지역
  2.2. 강우분석
  2.3. 모형 개발 및 적용
  2.4. 김해시 물 순환 선도도시 계획 내용
  2.5. 토지이용분석과 모형 입력자료 구축
 3. 결과 및 토의
  3.1. 직접 유출량 및 비점오염 부하량
  3.2. 유출률 및 비점오염원 저감 효과
 4. 결 론
 REFERENCES

• 정강영(국립환경과학원 낙동강물환경연구소, Nakdong River Environment Research Center, National Institute of Environmental Research) | Kang-Young Jung
• 김신(국립환경과학원 낙동강물환경연구소, Nakdong River Environment Research Center, National Institute of Environmental Research) | Shin-Kim
• 권헌각(국립환경과학원 낙동강물환경연구소, Nakdong River Environment Research Center, National Institute of Environmental Research) | Hun-Gak Kwon
• 양득석(국립환경과학원 낙동강물환경연구소, Nakdong River Environment Research Center, National Institute of Environmental Research) | Duk Seok Yang
• 김교식(경북대학교 토목공학과, Department of Civil Engineering Kyungpook National University) | Kyosik Kim
• 장광진(경북대학교 토목공학과, Department of Civil Engineering Kyungpook National University) | Kwang-Jin Jang
• 신동석(국립환경과학원 낙동강물환경연구소, Nakdong River Environment Research Center, National Institute of Environmental Research) | Dong-Seok Shin
• 안정민(국립환경과학원 낙동강물환경연구소, Nakdong River Environment Research Center, National Institute of Environmental Research) | Jung-Min Ahn Corresponding author