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Land Generated Waste Load Unit Estimation Based on Land Use Map with LP Optimization

LP 최적화에 의한 토지피복도 기반 토지계 발생부하 원단위 산정

  • Park, Kyung Ok (Water Environment Research Department, National institute of Environmental Research) ;
  • Lee, Chang Hee (Department of Renewable Energy Resources, Jungwon University)
  • 박경옥 (국립환경과학원 물환경연구부 유역총량연구과) ;
  • 이창희 (중원대학교 신재생에너지자원학과)
  • Received : 2016.06.27
  • Accepted : 2016.07.22
  • Published : 2016.08.31

Abstract

Land Generated Waste Load Unit(LGWLU) estimation based on land use data is required to understand the impact of land use on water quality. The method of estimating LGWLU based on the monitoring data requires a lot of time and manpower. In this study, we propose a method of land pollution unit load estimation based on land use data with LP optimization. Optimization is the process to obtain the best possible optimal solution in a given condition. This study carried out optimization by using excel solver in Microsoft Excel. This study derived LGWLU of BOD, T-N, T-P in Gongju-Si and Seocheon-Gun by using the 2012 land use map made by ministry of environment based on 2010 satellite image. This study about LGWLU estimation is expected to be able to determine more clearly the water pollution caused by land use changes.

토지이용에 따른 수질에 미치는 영향을 파악하기 위해서는 토지피복기반의 토지계 발생부하 원단위가 필요하다. 실측자료를 기반으로 토지피복기반 원단위를 도출하기에는 많은 인력과 시간을 필요로 한다. 이에 본 연구에서는 최적화를 통해 토지피복기반의 원단위 도출 방법을 제안하였다. 최적화란 주어진 조건 안에서 가장 좋은 최적해를 구하는 과정이며, 본 연구에서는 상용 프로그램인 Microsoft Excel에서 제공하고 있는 Excel Solver를 이용하여 최적화를 수행하였다. 공주시와 서천군의 2010년 위성영상 기반으로 작성된 2012년 환경부 중분류 토지피복도를 활용하여, BOD, T-N, T-P에 대한 토지피복기반 원단위를 도출하였다. 본 연구에서 수행한 토지피복기반 원단위 산정 연구는 국토 이용에 따른 오염원 발생변화를 보다 명확히 판별할 수 있을 것으로 판단된다.

Keywords

References

  1. Candela, A, Freni, G, Mannina, G, and Viviani, G (2009). Quantification of diffuse and concentrated pollutant loads at the watershed-scale: an Italian case study, Water Science & Technology, 59(11), pp. 2125-2135. https://doi.org/10.2166/wst.2009.882
  2. Jeon, JH, Jang, TK, Hwang, HS, Choi, DH, and Kim, TD (2010). Characterization of Nonpoint Source Pollutant Loads from the Nakdong, J. of Korean Society of Urban Environment, 10(3), pp. 203-211. [Korean Literature]
  3. Han, KY, Noh, JW, Kim, JS, and Lee, CH (2012). Application of Stochastic Optimization Algorithm for Waste Load Allocation in the Nakdong River Basin, Korea. KSCE J. of Civil engineering, 16(4), pp 650-659. https://doi.org/10.1007/s12205-012-0919-8
  4. Han, YH (2015). Effect Analysis of Nonpoint Source by the Change of Load Unit in Han River Basin of Gangwon Province, Gangwon Development Institute Report. [Korean Literature]
  5. Kang, MJ, Rhew, DH, Choi, JY (2014). Policies and Research Trends on Non-point Source Pollution Management in Korea. J. of Environmental Policy and Administration, 22(4), pp. 141-161. [Korean Literature] https://doi.org/10.15301/jepa.2014.22.4.141
  6. NIER. (2012). Measurement Method of Stormwater Outflow. [Korean Literature]
  7. NIER (2014). Technical guidelines for TMDLs, 11-1480523-001918-01. [Korean Literature]
  8. Orr, P, Colvin, J, and King, D (2007). Involving stakeholders in integrated river basin planning in England and Wales, Water Resources Management, 21(1), pp. 331-349. https://doi.org/10.1007/s11269-006-9056-9
  9. USEPA (2005). National management measures to control nonpoint source pollution from forestry, EPA-841-B-05-001. EPA, Office of Water, Washington, DC.
  10. Vanderbei, RJ (2001). Linear Programming: Foundations and Extensions. Springer Verlag.
  11. Vergura, J, and Jones, R (2000). The TMDL Program: Land Use and Other Implications, Texas Institute for Applied Environmental Research, Tarleton State University.
  12. Wang, JL, and Yang, YS (2008). An approach to catchment-scale groundwater nitrate risk assessment from diffuse agricultural sources: a case study in the Upper Bann, Northern Ireland, Hydrologicall Processes, 22(21), pp. 4274-4286. https://doi.org/10.1002/hyp.7036
  13. Yang, YS, and Wang, L (2010). A review of modelling tools for implementation of the EU Water Framework Directive in handling diffuse water pollution, Water Resources Management, 24(9), pp. 1819-1843. https://doi.org/10.1007/s11269-009-9526-y