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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.40, no.1, 2007³â, pp.155-162
BROOK90 ¸ðÇüÀ» ÀÌ¿ëÇÑ »ê¸²¼ÒÀ¯¿ªÀÇ À¯Ãâ·® ÃßÁ¤
( Prediction of Runoff on a Small Forest Watershed Using BROOK90 Model )
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»ê¸² ¼öÀÚ¿øÀÇ È¿À²ÀûÀÎ °ü¸®¸¦ À§Çؼ­´Â »ê¸²À¯¿ª¿¡¼­ ¹ß»ýÇϰí ÀÖ´Â ¼ö¹®Çö»ó¿¡ ´ëÇÑ Á¤È®ÇÑ Á¤º¸°¡ ÇÊ¿äÇÏ´Ù. º» ¿¬±¸¿¡¼­´Â ¼ö¹®¸ðÇüÀ» ÀÌ¿ëÇÏ¿© »ê¸²À¯¿ªÀÇ ½Ä»ý ¹× ÁöÇü¿¡ µû¸¥ ¼ö¹®¹ÝÀÀÀ» ÇØ¼®ÇÏ¿´´Ù. À̸¦ À§ÇÏ¿© °áÁ¤·ÐÀû, ÃѰýÇü ¸ðÇüÀÎ BROOK90¸ðÇüÀ» ¼±Á¤ÇÏ¿´À¸¸ç, »ê¸²¼ÒÀ¯¿ªÀÎ ºÏ¹®°ñ À¯¿ª(15ha)¿¡¼­ ÃøÁ¤µÈ ÀϺ° ÇÏõÀ¯·® ÀڷḦ ÀÌ¿ëÇÏ¿© ¸ðÇüÀÇ ¸Å°³º¯¼ö º¸Á¤°ú °ËÁõÀ» ½Ç½ÃÇÏ¿´´Ù. ºÏ¹®°ñ ¼ÒÀ¯¿ªÀÇ ½ÇÃø À¯Ãâ·®°ú BROOK90¸ðÇü¿¡ ÀÇÇØ ÃßÁ¤µÈ ÀϺ° Æò±Õ À¯Ãâ·®ÀÇ ÆíÂ÷´Â ¸ðÇüÀÇ º¸Á¤±â°£¿¡ ´ëÇÏ¿© -1.7%À̾úÀ¸¸ç, °ËÁõ±â°£¿¡ ´ëÇØ¼­´Â 4.6%·Î ³ªÅ¸³µ´Ù. ÇÑÆí, ¿ù Æò±Õ À¯Ãâ·®ÀÇ »ó°ü°è¼ö¿Í ¸ðÇüÈ¿À»À» ÀÌ¿ëÇÏ¿© ¸ðÇüÀÇ Àû¿ë¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. º¸Á¤±â°£¿¡ ´ëÇÑ »ó°ü°è¼ö¿Í ¸ðÇüÈ¿À²Àº °¢°¢ 0.922¿Í 0.847À̾úÀ¸¸ç, °ËÁõ±â°£¿¡ ´ëÇØ¼­´Â ±× °ªÀÌ °¢°¢ 0.941, 0.871·Î ³ªÅ¸³µ´Ù. ºÏ¹®°ñ ¼ÒÀ¯¿ªÀÇ ÀϺ° À¯Ãâ·® ÀڷḦ ÀÌ¿ëÇÏ¿© BROOK90¸ðÇüÀÇ Àû¿ëÇÑ °á°ú, BROOK90¸ðÇüÀº ¿ì¸®³ª¶ó¿Í °°ÀÌ »ç¸éÀÇ °æ»ç°¡ ±ÞÇϰí ÅäÃþÀÌ ¾èÀº »ê¸²À¯¿ªÀÇ À¯Ãâ·® ÃßÁ¤¿¡ Àß È°¿ëµÉ ¼ö ÀÖÀ¸¸ç, ¹ú䳪 ±âÈĺ¯È­ µî¿¡ µû¸¥ »ê¸²À¯¿ªÀÇ ¼ö¹®¹ÝÀÀÀ» Æò°¡ÇÏ´Â µµ±¸·Î Ȱ¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î º¸ÀδÙ.
Water balance is the major factor in forest ecosystem, and is closely related to the vegetation and topographic characteristics within a watershed. The hydrologic response of a forest watershed was investigated with the hydrological model. The deterministic, lumped parameter model (BROOK90) was selected and used to evaluate the applicability of the model for simulating daily runoff on the steep, forested watershed. The model was calibrated and validated against the streamflow data measured at the Bukmoongol watershed. The deviation in runoff volume $(D_v)$ was -1.7% for the calibration period, and the $D_v$ value for the validation period was 4.6%. The correlation coefficient (r) and model efficiency (E) on monthly basis were 0.922,0.847, respectively, for the calibration period, while the r- and E-value for the validation period were 0.941, 0.871, respectively. Overall, the simulated streamflows were close to the observations with respect to total runoff volume, seasonal runoff volume, and baseflow index for the simulation period. BROOK90 model was able to reproduce the trend of runoff with higher correlation during the simulation period.
 
Ű¿öµå
runoff;BROOK90;forest watershed;baseflow index;PART;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.40, no.1, 2007³â, pp.155-162
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200709905949543)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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