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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.39, no.2, 2006³â, pp.187-197
BASINS/HSPF¸¦ ÀÌ¿ëÇÑ ¿ë´ã´ï À¯¿ªÀÇ ¿À¿°ºÎÇÏ·® »êÁ¤
( Pollutant Loading Estimate from Yongdam Watershed Using BASINS/HSPF )
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º» ¿¬±¸´Â ¿ë´ã´ï À¯¿ª 2002 ${sim}$ 2003³â µ¿¾ÈÀÇ ¸ð´ÏÅ͸µ ÀڷḦ ÀÌ¿ëÇÏ¿© BASINS/HSPF¸ðÇüÀÇ º¸Á¤À» ÆþÇÏ¿© º» ¸ðÇüÀÇ ´ï À¯¿ª°ü¸®¿¡ Àû¿ë¼ºÀ» °ËÅäÇÏ¿´´Ù. 1. BASINS´Â À¯¿ªÀÇ ¿À¿°ÇöȲÀ» ½Å¼ÓÇÏ°í ¿ëÀÌÇÏ°Ô ÆÄ¾Ç°¡´ÉÇÏ°í ¿¹Ãø¸ðÇüÀÇ ÀÔ·Â ÀڷḦ ÀÚµ¿ÀûÀ¸·Î »ý¼ºÇØÁֱ⠶§¹®¿¡, HSPF¿Í °°Àº À¯¿ªÁ¾ÇÕ ¼öÁú¸ðÇüÀ» »ç¿ëÀÚÀÇ ¸ñÀû¿¡ ¸Â°Ô Àû¿ëÇÒ ¼ö ÀÖ¾ú´Ù. BASINSÀû¿ëÀ» À§ÇÑÇÙ½É GISÀÚ·áÀÎ À¯¿ªµµ¿Í ÇÏõµµ, DEM, ÅäÁöÀ̿뵵, ¼öÁúÃøÁ¤ÀÚ·á µîÀ» BASINSÇü½Ä¿¡ ¸Â°Ô º¯È¯ ${cdot}$ ÀÔ·ÂÇÏ¿©±× Àû¿ë¼ºÀ» È®ÀÎÇÏ¿´´Ù. 2.À¯¿ª´ÜÀ§ ¿À¿° ºÎÇÏ·®À» ÃßÁ¤Çϱâ À§ÇÏ¿© HSPF¸ðÇüÀ» ÀÌ¿ëÇØ¼­ ¸ðÇüÀÇ º¸Á¤ ±â°£ÀÎ 2002 ${sim}$ 2003³â±îÁöÀÇ À¯Ãâ·® ¹× ¼öÁúÀ» ¸ðÀÇ ºÐ¼®ÇÏ¿´´Ù. ¸ðÀǰá°ú À¯Ãâ·®¿¡ ´ëÇÑ ¸ðÇüÈ¿À²Àº ³ô¾ÒÀ¸³ª ¼öÁúÀÇ °æ¿ì º¸Á¤ÁöÁ¡ ¹× ƯÁ¤Ç׸ñ¿¡¼­ ¸ðÇü È¿À²ÀÌ »ó´ëÀûÀ¸·Î ³·°Ô ³ªÅ¸³ª¼­ º¸´Ù »ó¼¼ÇÑ ÃøÁ¤ÀÚ·á È®º¸ ¹× º¸Á¤ÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. ÇÏÁö¸¸ À¯¿ªÀ̶ó´Â ±¤¹üÀ§ÇÏ°í º¹ÇÕÀûÀΠƯ¼ºÀ» °í·ÁÇØ º¼ ¶§ Çã¿ëÇÑ ¼ö ÀÖ´Â ¹üÀ§ÀÇ ¼öÁúÀ» ¹¦»çÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. 3. ¿ë´ã´ï À¯¿ªÀÇ ºÎÇÏ·® »êÁ¤°á°ú, À¯Ãâ·®ÀÌ 1,296.5 $10^6;m^3;yr^{-1}$À̾ú°í, °¢ ¿À¿°¿øº°·Î ºñÁ¡¿À¿°ºÎÇÏ·®ÀÌ Â÷ÁöÇÏ´Â ºñÀ²Àº °¢°¢ 57.2%, 92.6%, 60.2%Á¤µµ·Î À¯¿ª³»ºñÁ¡¿À¿°ºÎÇÏ·® ºñÀ²ÀÌ ³ô°Ô ³ªÅ¸³µ´Ù. ¿¬°£ ¹èÃâµÇ´Â ºñÁ¡¿À¿°ºÎÇÏ·® Áß °­¿ì±â (6¿ù ${sim}$ 9¿ù)¿¡ ¹èÃâµÇ´Â ºÎÇÏ·®Àº 55${sim}$72%·Î ³ªÅ¸³µ°í, ÀÌ ±â°£ µ¿¾ÈÀÇ À¯Ãâ·®ÀÌ 69%ÀÓÀ» °í·ÁÇÒ ¶§ ¿À¿°ºÎÇÏ·®ÀÌ °­¿ì À¯Ãâ·®¿¡ Å« ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×·¯³ª ¼öÁú³óµµ´Â À¯·®Áõ°¡¿¡ µû¶ó ºñ·ÊÇÏ¿© Áõ°¡ÇÏÁö ¾Ê¾Ò°í ¿ÀÈ÷·Á °¨¼ÒÇÏ´Â °æÇâÀÌ ³ªÅ¸³µ´Ù. 4.º» ¿¬±¸¿¡¼­´Â ¿ë´ã´ï À¯¿ª¿¡ ´ëÇÑ BASINS/HSPFÀÇ Àû¿ë¼ºÀ» °ËÁõÇÏ¿´À¸¸ç, ÇöÀç ¿À¿°ÃÑ·®°è»ê¿¡ À־ ¿ø´ÜÀ§¹æ¹ý¿¡ ÀÇÇÑ ¿À¿°ºÎÇÏ·®»êÁ¤ÀÇ °³¼±Çʿ伺ÀÌ Á¦±âµÇ°í ÀÖ´Â »óȲ¿¡¼­ BASINS/HSPF¸¦ ÀÌ¿ëÇÑ ¿À¿°ºÎÇÏ·® »êÁ¤¿¡ ´ëÇÑ Àû±ØÀûÀÎ °ËÅä°¡ ÇÊ¿äÇÏ´Ù°í ÆÇ´ÜµÈ´Ù.
A mathematical modeling program called Hydrological Simulation Program-FORTRAN (HSPF) developed by the United States Environmental Protection Agency(EPA) was applied to the Yongdam Watershed to examine its applicability for loading estimates in watershed scale. It was run under BASINS (Better Assessment Science for Integrating point and Nonpoint Sources) program, and the model was validated using monitoring data of 2002 ${sim}$ 2003. The model efficiency of runoff was high in comparison between simulated and observed data, while it was relatively low in the water quality parameters. But its reliability and performance were within the expectation considering complexity of the watershed and pollutant sources and land uses intermixed in the watershed. The estimated pollutant load from Yongdam watershed for BOD, T-N and T-P was 1,290,804 kg $yr{-1}$, 3,753,750 kg $yr{-1}$ and 77,404 kg $yr{-1}$,respectively. Non-point source (NPS) contribution was high showing BOD 57.2%, T-N 92.0% and T-P 60.2% of the total annual loading in the study area. The NPS loading during the monsoon rainy season (June to September) was about 55 ${sim}$ 72% of total NPS loading, and runoff volume was also in a similar rate (69%). However, water quality was not necessarily high during the rainy season, and showed a decreasing trend with increasing water flow. Overall, the BASINS/HSPF was applied to the Yongdam watershed successfully without difficulty, and it was found that the model could be used conveniently to assess watershed characteristics and to estimate pollutant loading in watershed scale.
 
Ű¿öµå
BASINS/HSPF;watershed modeling;runoff;water quality;nonpoint source pollution;loading estimate;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.39, no.2, 2006³â, pp.187-197
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200618317186945)
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