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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.6, 2008³â, pp.565-574
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»êºÒÁö¿ªÀÇ WEPP ¸Å°³º¯¼ö ÃßÁ¤
( Estimation of WEPP's Parameters in Burnt Mountains ) |
| ¹Ú»ó´ö; °¸ª´ëÇб³ Åä¸ñ°øÇаú;
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| »êºÒ¿¡ µû¸¥ Åä¾çÀÇ ¹Ý¹ß¼ö·Â Áõ´ë·Î »êÁöÀÇ À¯Ãâ·®°ú Åä¾çħ½Ä·®ÀÌ °¡ÁߵȴÙ. WEPP¸ðÇüÀ» »êºÒÁö¿ª¿¡ Àû¿ëÇϱâ À§ÇÑ ÁÖ¿ä ¸Å°³º¯¼öµéÀÇ ÃÖÀû ÃßÁ¤±â¹ý¿¡ ´ëÇØ ¿¬±¸ÇÏ¿´´Ù. »êºÒÁö¿ª¿¡¼ WEPP¸ðÇüÀº À¯Ãâ·®ÀÌ ÀûÀ» ¶§ °ú´ëÆò°¡ÇÏ°í ¸¹À¸¸é °ú¼ÒÆò°¡ÇÏ¿´À¸¸ç Åä¾çħ½Ä·®ÀÌ ÀûÀº °æ¿ì¿¡µµ °ú´ë »êÁ¤ÇÏ´Â °æÇâÀÌ ÀÖ´Ù. »êºÒÁö¿ª¿¡¼ ÀÌ ¸ðÇüÀÇ À¯Ãâ·® º¯È´Â À¯È¿Åõ¼ö°è¼ö°¡ °¡Àå Å« ¿µÇâÀ» ¹ÌÄ¡°í Åä»çÀ¯Ãâ·® º¯È´Â À¯È¿Åõ¼ö°è¼ö, ÃʱâÆ÷ȵµ, ¼¼·ùħ½Ä°è¼ö, ¼¼·ù°£Ä§½Ä°è¼ö°¡ ÁÖ·Î ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. »êºÒÁö¿ª¿¡¼ WEPPÀÇ Àû¿ë¼ºÀ» Çâ»ó½Ã۱â À§ÇÏ¿© À¯Ãâ·®¿¡ ´ëÇØ¼´Â À¯È¿Åõ¼öÁ¶Á¤°è¼ö¸¦ µµÀÔÇϰí, Åä»çÀ¯Ãâ·®¿¡ ´ëÇØ¼´Â ¼¼·ùħ½ÄÁ¶Á¤°è¼ö¿Í ¼¼·ù°£Ä§½ÄÁ¶Á¤°è¼ö¸¦ µµÀÔÇÏ¿´´Ù. À¯È¿Åõ¼öÁ¶Á¤°è¼ö´Â °¿ì»ç»óÀÇ ÃÖ´ë°¿ì°µµ¿Í ½Ä»ýÀÎÀÚ¿¡ µû¶ó Áõ°¡ÇÏ´Â °æÇâÀ» ³ªÅ¸³»¾ú´Ù. ¼¼·ùħ½ÄÁ¶Á¤°è¼ö´Â ÀÔµµºÐÆ÷ÀÇ Åä¾ç¼ººÐ Ư¼º°ú °¿ì»ç»óÀÇ ÃѰ¿ì·®¿¡ Á¿ìµÇ¾úÀ¸¸ç ¼¼·ù°£Ä§½ÄÁ¶Á¤°è¼ö´Â ÃÖ´ë°¿ì°µµ¿Í ½Ä»ý°íÁö¼öÀÇ Áõ°¡¿¡ µû¶ó °¨¼ÒÇÏ¿´´Ù. º» ¿¬±¸°á°ú´Â »êºÒÁö¿ª »ç¸é¿¡¼ WEPP¸ðÇüÀÇ Àû¿ë¿¡ Ȱ¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| Fire-enhanced soil hydrophobicity often increases runoff and erosion in the mountain hillslope following severe wildfires. Estimation techniques for WEPP's parameters were studied in burnt mountain slopes. In burnt mountain slopes, the model over-predicted runoff in the small runoff and under-predicted runoff in the great runoff, and in the lower sediment runoff it had a tendency to over-predict soil loss. The effective hydraulic conductivity was most sensitive in the WEPP's runoff and its sediment runoff was mainly effected by the effective hydraulic conductivity, initial saturation, rill erodibility, and interrill erodibility. To improve the applicability of the WEPP, the adjustment coefficient of effective hydraulic conductivity was defined for runoff and the adjustment coefficient of rill erodibility and interrill erodibility was presented for sediment runoff. The adjustment coefficient of effective hydraulic conductivity in wildfire mountain slopes increased with maximum rainfall intensity of single storm and the vegetation height index. The adjustment coefficients of rill erodibility depended on soil components of size distribution curve and total rainfall depths in single storm. The adjustment coefficients of interrill erodibility decreased with increases of maximum rainfall intensity and vegetation height index. These results may be used in the application of WEPP model for wildfire mountain slopes. |
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| Ű¿öµå |
| Åä¾çħ½Ä;À¯Ãâ;À¯È¿Åõ¼ö°è¼ö;Á¶Á¤°è¼ö;»êºÒ;WEPP;soil erosion;runoff;effective hydraulic conductivity;adjustment coeffecient;wildfire; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.6, 2008³â, pp.565-574
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200819160171578)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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