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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.10, 2006³â, pp.881-890
SWAT ¸ðµ¨À» ÀÌ¿ëÇÑ °©ÃµÀ¯¿ª¿¡ ´ëÇÑ ¼ö¹® Ư¼º ºÐ¼® ¹× µµ½ÃÈ­ ¿µÇâ Æò°¡
( Evaluation of Urbanization Effect and Analysis of Hydrological Characteristics in the Gap River Catchment using SWAT )
±èÁ¤°ï;¼Õ°æÈ£;³ëÁØ¿ì;Àåâ·¡;°íÀÍȯ; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸¼Ò;
 
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SWAT ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ´ëÀü 3´ë ÇÏõ À¯¿ªÀÇ ¼ö¹® ºÐ¼® ¹× µµ½ÃÈ­¿¡ µû¸¥ ¿µÇâÀ» Æò°¡ÇÏ¿´´Ù. ¹°¼öÁö ºÐ¼®°á°ú¿¡ ÀÇÇϸé, ÀüüÀûÀ¸·Î ÃÑ À¯Ãâ·® Áß ÁöÇϼö À¯Ãâ·®ÀÌ 44%Á¤µµ, Áß°£ À¯Ãâ·®ÀÌ 6% ±×¸®°í ÁöÇ¥À¯Ãâ·®ÀÌ 50%ÀÌ´Ù. µµ½ÃÈ­ ¿µÇ⠺м® °á°ú ÀüüÀûÀ¸·Î 1975³â¿¡¼­ 2000³â±îÁö °©ÃµÀ¯¿ªÀÇ ¾à 5%°¡·®ÀÇ µµ½ÃÈ­´Â ÃÑ À¯Ãâ·®ÀÇ º¯È­¿¡ À־´Â ÇöÀúÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸³ª, µµ½ÃÈ­ À²ÀÌ 32%Á¤µµ Áõ°¡ÇÑ ¼ÒÀ¯¿ªÀÇ °æ¿ì À¯Ãâ ¼ººÐ ºÐ¼®¿¡¼­ ÷µÎ À¯·®ÀÇ °æ¿ì $25{sim}66%$ÀÇ Áõ°¡¸¦ º¸¿´°í, ÁöÇϼö À¯Ãâ·®ÀÇ °æ¿ì $68{sim}73%$ÀÇ °¨¼Ò¸¦ È®ÀÎ ÇÒ ¼ö ÀÖ¾ú´Ù. ±×¸®°í µµ½ÃÈ­ÀÇ ¿µÇâÀ¸·Î Åä¾ç¼öºÐ·®Àº °Ç±â¸¦ Á¦¿ÜÇÑ ¸ðµç ½Ã±âµ¿¾È °¨¼ÒÇÑ ¹Ý¸é ħÅõ·®Àº ¸ðµç ½Ã±âµ¿¾È °¨¼ÒÇÏ¿´´Ù. µµ½ÃÈ­ÀÇ ¿µÇâÀº °­¿ì·®ÀÌ Àû°í, Áõ¹ß·®ÀÌ ¸¹Àº °¥¼ö³â¿¡ ´õ Å©°Ô ³ªÅ¸³µ´Ù. ÀÌ °á°ú·ÎºÎÅÍ µµ½ÃÈ­ÀÇ ¿µÇâÀ¸·Î dz¼ö±â µ¿¾ÈÀÇ È«¼öÇÇÇØ Æù°¡ ¹× °¥¼ö±â µ¿¾ÈÀÇ ÇÏõÀÇ °Çõȭ ¹®Á¦¸¦ À¯Ãß ÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù. °á·ÐÀûÀ¸·Î º» ¿¬±¸¿¡¼­ ¼öÇàÇÑ ¼ö¹®ºÐ¼® ¹× µµ½ÃÈ­ ¿µÇâºÐ¼® °á°ú´Â ÇâÈÄ ´ëõ 3´ë ÇÏõÀÇ »ýÅÂÇÏõº¹¿øÀ» À§ÇÑ ¹°¼øÈ¯ Á¤»óÈ­ ´ëÃ¥¸¶·Ã ¹× ÇÏõÀÇ À¯·®È®º¸¹æ¾È ¸¶·ÃÀ» À§ÇÑ ±âÃÊÀÚ·á·Î »ç¿ëµÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù.
Hydrological characteristics and urbanization effects in the Gap river catchment were investigated employing the SWAT model. The hydrological characteristics analysis showed that total runoff in the whole catchment from 2001 to 2004 consists of 44% of groundwater flow, 6% of lateral flow and 50% of surface flow under year 2000 landuse conditions. The analysis of urbanization effect using different landuse maps for year 1975 and 2000 indicated that although 5% increase in urbanized areas did not significantly impact on the total runoff in the whole catchment, a sub-basin where urbanized area increased by 32% over the past 30 years showed $68{sim}73%$ decrease in groundwater flow and $22{sim}66%$ increase in surface flow. It was found that urbanization decreased overall soil moisture and percolation rate except for some increase in soil moisture during dry season. Urbanization effect was found more sensitive during a dry year which has less rainfall and higher evapotranspiration than during a wet year. Therefore, from the results of this study we could infer increased flood damage during wet season and dried stream during dry season due to urbanization. To conclude, the results of this study can provide fundamental information to the eco-friendly restoration project for the three major rivers (Gap-cheon, Yudeung-cheon and Daejeon-cheon) in Daejeon Metropolitan City.
 
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µµ½ÃÇÏõº¹¿ø;¹°¼øÈ¯;±âÀúÀ¯Ãâ;ÁöÇϼö;water cycle;baseflow;groundwater;SWAT;urbanization;runoff characteristics;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.10, 2006³â, pp.881-890
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623538448)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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