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Çѱ¹»ýÅÂÇÐȸ / v.22, no.3, 1999³â, pp.101-108
ÀÌ¿øÃµ À¯¿ªÀÇ ÇÏõ¼öÁú¿¡ ¹ÌÄ¡´Â ÁöÇü¿äÀÎ
( The Topographical Factors Affecting the Water Quality of Iwonchon Basin )
ÀÌÈ£ÁØ;¹æÁ¦¿ë; °Ç±¹´ëÇб³ ÀÚ¿¬°úÇкΠ»ý¸í°úÇÐÀü°ø;°Ç±¹´ëÇб³ ÀÚ¿¬°úÇкΠ»ý¸í°úÇÐÀü°ø;
 
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ÁöÇü¿äÀÎÀÌ ¾î¶»°Ô ¼öÁú¿¡ ¿µÇâÀ» Áִ°¡¸¦ ¿¬±¸ÇϰíÀÚ 1993³â 3¿ù ºÎÅÍ 1998³â 3¿ù±îÁö Á¶»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. Á¶»çÁö´Â ÃæºÏ ¿Áõ±º ÀÌ¿ø¸éÀÇ °æÀÛÁö°¡ ÁÖ·ù¸¦ ÀÌ·ç´Â °³½ÉÀú¼öÁö¿Í »êÁöÀ¯¿ªÀ¸·Î Ư¼ºÁö¿öÁö´Â ÀåÂùÀú¼öÁö À¯¿ªÀ» ´ë»óÀ¸·Î ÇÏ¿´´Ù. Á¶»çÀ¯¿ªÀ» 11°³ ¼ÒÁý¼ö¿ªÀ¸·Î ¼¼ºÐÇϰí ÁöÇüÇÐÀû Ư¼º°ú ÇÏõ¼öÁú°úÀÇ »ó°ü¼º, ÇÏõ À¯¿ªÀÇ ¿À¿°¿ø µ¿Å¸¦ »ýÅÂÇÐÀû °üÁ¡¿¡¼­ ±Ô¸íÇϰíÀÚ Á¶»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. °³½ÉÀú¼öÁö À¯¿ªÀÇ Çü»ó°è¼ö´Â 0.030¡­0.210(Æò±Õ 0.090), ÀåÂùÀú¼öÁö À¯¿ªÀÇ Çü»ó°è¼ö´Â 0.217¡­0.452 (Æò±Õ 0.325)·Î ÀåÂùÀú¼öÁö À¯¿ªÀÇ Çü»ó°è¼ö°¡ 3.61¹è ´õ ³ô´Ù. °³½ÉÀú¼öÁöÀÇ E(ÁöÁ¤¸®¿Í ¹Ìµ¿¸®), F(À±Á¤¸®) ¼ÒÁý¼ö¿ªÀº ±Ý°­À¯¿ª ÀüüÀÇ Çü»ó°è¼ö 0.063°ú ºñ½ÁÇÏ¿© È«¼öÀ¯¼Ó½Ã°£ÀÌ ±Ý°­°ú À¯»çÇÏ¿´´Ù. ÇÏõ±æÀÌ¿Í À¯¿ª¸éÀûÀÇ °ü°è½ÄÀº L=1.44A/sup 0.06/·Î º¸Á¤µÇ¾ú´Ù. ȯ»óÀ²Àº °³½ÉÀú¼öÁö À¯¿ª 17.114, ÀåÂùÀú¼öÁö À¯¿ª 7.444·Î, °­¼öµµ´Þ½Ã°£Àº ±Ý°­ Àüü À¯¿ªº¸´Ù 5¹è ºü¸¥ °ÍÀ¸·Î ÃßÁ¤µÇ¾ú´Ù. ¼¼ÀåÀ²Àº °³½ÉÀú¼öÁö À¯¿ª 0.357 (±Ý°­ 0.282), ÀåÂùÀú¼öÁö 0.636À¸·Î ³ªÅ¸³ª ÀåÂùÀú¼öÁö À¯¿ª¿¡¼­ °­¼öÁýÇսð£ÀÌ 1.54¹è ´õ ºü¸¥ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. °¢ Áý¼ö¿ªº° °­¼öµµ´Þ½Ã°£Àº ÀåÂùÀú¼öÁö À¯¿ªÀÇ A' ¼ÒÁý¼ö¿ªÀÌ 337.53 min.·Î °¡Àå ´À·ÈÀ¸¸ç °³½ÉÀú¼öÁö À¯¿ªÀÇ H ¼ÒÁý¼ö¿ªÀº 49.26 min.·Î °¡Àå ºü¸¥ °ÍÀ¸·Î ³ªÅ¸³µ´Âµ¥, ´ëüÀûÀ¸·Î ÇÏ·ù·Î °¥¼ö·Ï °­¼öÁýÇսð£ÀÌ ºü¸¥ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. °îÀÇ ¹Ðµµ´Â 0.500¡­l.337¹üÀ§¿¡ ÀÖ¾úÀ¸¸ç °­¼öħÅõ¿Í´Â ¿ªÀÇ »ó°üÀ» ³ªÅ¸³½´Ù. µû¶ó¼­ ÀÎÀ§ÀûÀ¸·Î ÇÏõÀ» ¸·°Å³ª °³Àý(ËÒï·), Á÷¼±¹è¼ö·ÎÈ­´Â È«¼ö¸¦ À¯¹ßÇÒ °¡´É¼ºÀÌ ¸¹°í, ÇÏõÀÇ ÀÚÁ¤´É·ÂÀ» ¶³¾î¶ß¸®´Â °á°ú¸¦ ³ºÀ» °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. °³½ÉÀú¼öÁö¿Í ÀåÂùÀú¼öÁöÀÇ ¼ö°èºóµµ(Df)¿Í °îÀÇ ¹Ðµµ(Dd)ÀÇ °ü°è´Â °³½ÉÀú¼öÁö À¯¿ª Df=0.023Dd©÷, ÀåÂùÀú¼öÁöÀ¯¿ª Df=0.189Dd©÷À¸·Î »êÁ¤µÇ¾ú´Ù. Æò±Õ°æ»ç´Â °³½É 14.03, ÀåÂù 16.9·Î¼­ ÀåÂùÀú¼öÁö°¡ À¯·®ÀÌ ¸¹¾ÆÁö±â ½¬¿î °ÍÀ¸·Î Á¶»ç µÇ¾ú´Ù. °æ»ç°¡ Áõ°¡ÇÏ¸é ¿ëÁ¸»ê¼Ò·®Àº Áõ°¡ÇÏÁö¸¸, Áõ°¡ÆøÀº Å©Áú ¾ÊÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. COD¿Í Æò±Õ°æ»ç´Â À¯ÀÇÇÑ »ó°üÀÌ ¾ø¾úÀ¸³ª BOD´Â Æò±Õ°æ»ç¿Í À¯ÀÇÇÑ »ó°üÀÌ ÀÖ´Â °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. Çü»ó°è¼ö¿Í ȯ»ó·ü ¹× ÃÑÁú¼Ò¿ÍÀÇ °ü°è´Â Çü»ó°è¼ö(Y/sub TKN/=0.7271X£«0.0967)¿Í ȯ»ó·üÀÌ Ä¿Áú¼ö·Ï TKNÀÌ Áõ°¡ÇÏ¿´´Ù. (Y/sub TKN/=0.1577X-0.1501). BOD¿Í COD´Â 1BOD/l.2CODÀÇ °ü°è°¡ ÀÖ¾ú´Ù.
This survey was performed from March 1993 to March 1998, in order to clarify the relationships between water quality and topographical factor. The study sites were two reservoir basins; Kaesim and Jangchan in Iwon-myon, Okchon-gun, Chungcho'ngbukdo Province. Basin shape factors of Kaesim reservoir were at 0.030¡­0.210 (mean value 0.090), those of Jangchan reservoir were at 0.217¡­0.452 (mean value 0.325). The mean basin shape factor of Jangchan reservoir was 3.61 times larger than that of Kaesim reservoir because its stream width was narrower and mean stream length was shorter. In the correlation between distance from the source of stream (L) and basin area (A), Iwonchon basin was calculated as L=1.44A/sup 0.6/. Circularity ratio was 17.114 in Kaesim (22% of Kum River), and 7.444 in Jangchan. Elongation ratio was 0.357 in Kaesim, 0.636 in Jangchan and 0.282 in Kum River. Precipitation summation period of Jangchan was 1.54 times slower than that of Kaesim. Rainfall reaching time in each small basin was 337.53 min. in A'(Jangchan-ri) basin of Jangchan and 49.26 min in H (Iwon-ri) basin of Kaesim. In the relationship between watershed frequency (Df) and drainage density (Dd), the regression equation was Df=0.023Dd©÷ in Kaesim and Df=0.189Dd©÷ in Jangchan reservoir. As slope degree increased, DO became higher (Y/sub DO/=0.19X£«6.5927, r=0.8l), but COD(Y/sub COD/=-0.2092X£«9.7104, r=0.52) became lower. Total nitrogen was increased with the increase of basin shape factor and circularity ratio. Ratio of B/sub OD/ to COD was 1/1.2(Y/sub BOD/ = 1.2984 X/sub COD/-3.2004, r=0.9l).
 
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The Korean Journal of Ecology / v.22, no.3, 1999³â, pp.101-108
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911922412963)
¾ð¾î : Çѱ¹¾î
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