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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.2, 2001³â, pp.131-140
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ºÐÆ÷Çü °³³äÀ» ÀÌ¿ëÇÑ Åä»çÀ¯Ãâ·® »êÁ¤¿¡ °üÇÑ ¿¬±¸
( A Study on the Estimation of Sediment Yield Based on a Distributed System Concept ) |
| ±è¿õÅÂ;À±¿ë³²;¹Ú¹«Á¾;À¯Ã¶»ó; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸ºÎ;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;ÇѼ´ëÇб³ Åä¸ñ°øÇаú;°í·Á´ëÇб³ ȯ°æ°øÇаú;
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| º» ¿¬±¸´Â ºÐÆ÷Çü °³³ä¿¡ ±âÃÊÇÑ USLE(Universal Soil Loss Equation)ÀÇ ¸Å°³º¯¼öÀÇ »êÁ¤¹æ¹ý°ú À¯¿ª¿¡¼ ¹ß»ýÇÑ À¯»çÀü´Þ·üÀ» Áß½ÉÀ¸·Î ¼öÇàµÇ¾ú´Ù. ±×¸®µå¸¦ ÀÌ¿ëÇÑ ºÐÆ÷Çü °³³äÀÇ ¸ðÇüÀº °æ»ç°¡ °¡Àå ±ÞÇÑ ¹æÇâÀ¸·Î ÇÑ ±×¸®µå¿¡¼ ´Ù¸¥ ±×¸®µå·Î À¯»ç¸¦ ÃßÀûÇÒ ¼ö ÀÖ´Ù. ¿©±â¼´Â ±âÁ¸¿¡ Á¶»çµÈ °æ±âµµ Áö¿ª¿¡ À§Ä¡ÇÑ 10°³ÀÇ ³ó¾÷¿ë Àú¼öÁöÀÇ Åä»çÀ¯Ãâ·®°ú À¯¿ªÀÇ ¹°¸®ÀûÀΠƯ¼ºÀ» ¼öÁýÇÏ¿© ¿¬±¸¿¡ ÀÌ¿ëÇÏ¿´´Ù. ÇÑ ±×¸®µåÀÇ À¯»çÀü´Þ·üÀº ±× ±×¸®µåÀÇ ½£À̳ª Åä»çÀ̵¿À» ¹æÇØÇÏ´Â ¸éÀûºñ¿Í °ü°è°¡ ÀÖ´Ù°í Á¤ÀÇÇϰí $C_1$À̶ó´Â ºñ·Ê»ó¼ö¸¦ µµÀÔÇÏ¿´´Ù. 8°³ Àú¼öÁö¿¡ ´ëÇÏ¿© ¸ðÇüÀ» º¸Á¤ÇÏ°í ³ª¸ÓÁö 2°³ Àú¼öÁö¿¡ ´ëÇÏ¸ç °ËÁ¤À» ½Ç½ÃÇÏ¿´À¸¸ç À¯¿ªÀÇ ¹°¸®ÀûÀΠƯ¼º°ú $C_1$°úÀÇ È¸±ÍºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. ȸ±ÍºÐ¼® °á°ú¸¦ 2°³ÀÇ Àú¼öÁö À¯¿ª¿¡ °ËÁ¤ÇÑ ¹Ù ÀûÀýÇÑ °á°ú¸¦ º¸¿´À¸¸ç º» ¿¬±¸¿¡¼ Á¦¾ÈÇÑ ¸ðÇüÀÇ Àû¿ë °¡´É¼ºÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. |
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| The present study is focused on improving the methodology for the determination of parameters involved in USLE(Universal Soil Loss Equation) based on distributed system concept and investigation of sediment delivery ratio. Generally the distributed system concept consists of grid networks throughout the watershed and sediment can be traced from grid to rid in the direction of the steepest descent. The sediment yield data together with physical data of 10 small irrigation reservoirs in Kyounggi-Do are collected. After the sediment delivery ratio of a grid is defined to be related tothe fraction of forested or covered with delivery proofing area of the grid, the preportionality coefficient(C$_1$) is introduced. The distributed system model is calibrated using the available data for 8 reservoirs and is verified with the data for the ramaining 2 reservoirs, and regression analysis is made to express the proportionality coefficient $C_1$ in terms of watershed physical characteristics. By applying this results the verification of the distributed system model for 2 reservoirs showed a fair result, which justifies the applicability of the proposed method in the present study. |
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| Ű¿öµå |
| distributed system concept;sediment delivery ratio;USLE;grid;regression analysis; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.2, 2001³â, pp.131-140
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920731802)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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