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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.43, no.1, 2010³â, pp.150-160
Çü»ê°­ ¼ö°èÀÇ ¼öÁú Ư¼º
( Characteristics of Water Quality in Hyeongsan River Watershed )
±èÀ¯Ç¥;¾È±¤±¹; Ãæ³²´ëÇб³ »ý¸í°úÇаú;Ãæ³²´ëÇб³ »ý¸í°úÇаú;
 
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º» ¿¬±¸´Â Çü»ê°­ ¼ö°èÀÇ 7°³ÀÇ ÇÏõ ÁöÁ¡¿¡¼­ ÀÌ È­ÇÐÀû ¼öÁúÀÇ ½Ã °ø°£Àû º¯ÀÌ ÆÄ¾ÇÀ» À§ÇÏ¿© 1999³â~2008³â±îÁö ÃøÁ¤µÈ ȯ°æºÎ ¼öÁúÀڷḦ ºÐ¼®ÇÏ¿´´Ù. ¼öÁú º¯¼ö´Â ¼ö¿Â, ¿ëÁ¸»ê¼Ò·®(DO), »ýÈ­ÇÐÀû »ê¼Ò¿ä±¸·®(BOD), È­ÇÐÀû »ê¼Ò¿ä±¸·®(COD), ÃÑÀÎ(TP), ÃÑÁú¼Ò(TN), ºÎÀ¯¹°(SS) ¹× Àü±âÀüµµµµ(EC)ÀÇ 8°³ Ç׸ñÀ» ÀÌ¿ëÇÏ¿´À¸¸ç, ¼öÁú Ư¼ºÀº ¿¬º°, °èÀýº°, Á¶»çÁöÁ¡º°·Î º¯À̸¦ º¸¿´´Ù. À̿ Èñ¼®Çö»óÀÇ ÁöÇ¥·Î ÀÌ¿ëµÈ EC´Â °èÀý 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» ¶§ TNÀº °¥¼ö±â¿¡ °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´À¸¸ç, TP´Â µµ½ÉÁö¿ªÀ» °üÅëÇÏ´Â Áß·ùºÎ¿¡¼­ À帶±â¿¡ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù. BOD¿Í COD´Â °­¿ì¿Í À¯ÀÇÇÑ °ü°è¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. °èÀýº° SS ³óµµ´Â À帶±â¿¡ Å©°Ô Áõ°¡ÇÏ¿´À¸¸ç, º»·ùÀÇ SS´Â ÇÏ·ù·Î °¥¼ö·Ï Áõ°¡ÇÏ¿´´Ù. Çü»ê°­ »ó Áß·ùÀÇ BOD, COD, TP, TN, SS ¹× EC´Â µµ½ÉÁö¿ªÀ» °üÅëÇÏ´Â H3 ÁöÁ¡À» Áö³ª¸é¼­ ¸ðµç º¯¼ö¿¡¼­ Å©°Ô Áõ°¡ÇÏ¿© ¼öÁú ¾ÇÈ­°¡ ÀϾ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Áï, °æÁֽà ¹× Æ÷Ç×½ÃÀÇ µµ½É¿¡¼­ Èê·¯³ª¿À´Â ÁöõÀÇ ¿µÇâÀÌ ÇÏ·ùÀÇ ¼öÁú ¾ÇÈ­¿¡ Å« ¿µÇâÀ» ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³ª È¿À²ÀûÀÎ ¼öÁú°ü¸®°¡ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÇ¾ú´Ù.
The objective of this study was to analyze long-term temporal trends of water chemistry and spatial heterogeneity for 7 sampling sites of the Hyeongsan River watershed using water quality dataset during 1999 to 2008 (obtained from the Ministry of Environment, Korea). 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 TN, 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 season. Spatial trend analyses of all parameters, except for DO and temperatures, showed that gyeongju city acted as a point source, and thus, water quality at the location of Site 4 declined abruptly, compared to locations of Site 1~2. Based on overall dataset, efficient water quality management in the point source tributary streams is required for better water quality of the main Hyeongsan River.
 
Ű¿öµå
water quality;dilution;nutrient;Hyungsan River;pollution;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.43, no.1, 2010³â, pp.150-160
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201023064630434)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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