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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.40, no.1, 2007³â, pp.110-120
±Ý°­ ¼ö°èÀÇ ¼öÁú Ư¼º
( Water Quality Characteristics in Keum River Watershed )
¾È±¤±¹;¾ç¿ì¹Ì; Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;
 
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º» ¿¬±¸´Â ±Ý°­¼ö°èÀÇ 13°³ ÇÏõÁöÁ¡¿¡¼­ ÀÌ È­ÇÐÀû ¼öÁúÀÇ ½Ã °ø°£Àû º¯ÀÌ ÆÄ¾ÇÀ» À§ÇØ $2001{sim}2005$³â±îÁö ÃøÁ¤µÈ ȯ°æºÎ ¼öÁúÀڷḦ ºÐ¼®ÇÏ¿´´Ù. ÀÌ¿ëµÈ ¼öÁú º¯¼ö´Â Àü±âÀüµµµµ(EC), ¿ëÁ¸»ê¼Ò·®(DO), ¼ö¿Â, »ýÈ­ÇÐÀû »ê¼Ò¿ä±¸·®(BOD), È­ÇÐÀû »ê¼Ò¿ä±¸·®(COD), ÃÑÀÎ(TP), ÃÑ Áú¼Ò(TN)¹× ºÎÀ¯¹°(SS)ÀÇ 8°³ Ç׸ñÀ¸·Î À̵éÀÇ ¼öÁúƯ¼ºÀº ¿¬º°, °èÀýº°, Á¶»çÁöÁ¡º°·Î Å« º¯À̸¦ º¸¿´´Ù. ÀÌ¿ÂÈñ¼®Çö»óÀÇ ÁöÇ¥·Î ÀÌ¿ëµÈ EC´Â °èÀý ¹× ¿¬º° ºÐ¼®¿¡¼­ À帶±â¿¡ Å©°Ô °¨¼ÒÇÏ´Â Çö»óÀ» º¸¿´°í, °èÀýº° ¿µ¾ç¿°·ù(TN, TP)´Â Àü Á¶»çÁöÁ¡À» ´ë»óÀ¸·Î Æò±ÕÇßÀ» ¶§, °¥¼ö±â¿¡ ºñÇØ °¨¼ÒÇϴ Ư¼ºÀ» º¸¿´´Ù. ¶ÇÇÑ ÀϺΠÁöÁ¡º° Ư¼ºÀº Â÷À̰¡ ÀÖÁö¸¸, BOD¹× COD´Â °­¿ì¿Í À¯ÀÇÇÑ °ü°è¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. ÇÑÆí, °èÀýº° SS³óµµ´Â °­¿ì±â¿¡ Å©°Ô Áõ°¡ÇßÀ¸¸ç, TPÀÇ º¯ÀÌ´Â TN°ú À¯»çÇÑ ¾ç»óÀ» º¸¿´´Ù. ±Ý°­¿¡¼­ »ó ÇÏ·ù°£ÀÇ TP, TN, BOD, COD, SS ¹× ECÀÇ ºÐ¼®¿¡ µû¸£¸é, ÁöõÀÎ °©ÃµÀÌ À¯ÀÔµÇ¾î ¿µÇâÀ» ÁÖ´Â S9¿¡¼­ ¼öÁúÀÌ ±ØÈ÷ ¾ÇÈ­µÇ¾î $S9{sim}S13$ÀÇ ÇÏ·ù¿ª¿¡¼­´Â ¸ðµç º¯¼ö¿¡¼­ 2¹è ÀÌ»óÀÇ ¼öÁú¾ÇÈ­°¡ ÀϾ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÀÌ·± Ư¼ºÀº ¹ÌȣõÀÇ Áö·ùºÎ¿¡¼­µµ ³ªÅ¸³ª ±Ý°­º»·ùÀÇ ¼öÁúÀº ´ëÀü ¹× ûÁÖÀÇ µµ½É¿¡¼­ Èê·¯³ª¿À´Â ÁöõÀÇ ¿µÇâÀÌ ÇÏ·ùÀÇ ¼öÁú¾ÇÈ­¿¡ Å« ¿µÇâÀ» ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³ª ƯÈ÷ ÀÌ·± Áö·ùºÎ¿¡¼­ÀÇ È¿À²ÀûÀÎ ¼öÁú°ü¸®°¡ Àý½ÇÇÑ °ÍÀ¸·Î »ç·áµÇ¾ú´Ù.
The objective of this study was to analyze temporal trends of water chemistry and spatial heterogeneity for 13 sampling sites of the Keum River watershed using water quality dataset (obtained from the Ministry of Environment, Korea) during $2001{sim}2005$. The water quality, based on eight physical and chemical parameters, varied largely depending on the years, seasons, and sampling sites. Seasonal and annual means of conductivity, used as a key indicator for a ionic dilution declined during the monsoon season, and nutrients (TN and TP), based on overall mean of all sites, showed marked declines during the monsoon, compared to those of the premonsoon. In the mean time, BOD and COD had no significant relations with a precipitation, in spite of some differences in the sampling sites. In contrast, major input of SS occurred during the period of summer monsoon. and the variation of TN was similar to that of TP. Spatial trend analyses of all parameters, except for DO and temperature, showed that Site 9 acted as a point source, and thus, water quality at the locations of $S9{sim}S13$ declined abruptedly over 2 fold, compared to locations of $S1{sim}S8$. Based on the overall dataset, efficient water quality management in the point source tributary streams is required for better water quality of the main Keum River.
 
Ű¿öµå
water quality;dilution;nutrient;Kuem River;pollution;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.40, no.1, 2007³â, pp.110-120
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200709905949235)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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