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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.1, 2009³â, pp.39-47
µ¿Áø°­ À¯¿ªÀÇ ¼öÁú °æÇ⠺м®¿¡ °üÇÑ ¿¬±¸
( Trend Analysis of Water Quality in Dongjin River Watershed )
ÀÌÇý¿ø;¹Ú¼®¼ø; ÀÌÈ­¿©ÀÚ´ëÇб³ °ø°ú´ëÇРȯ°æ°øÇаú;ÀÌÈ­¿©ÀÚ´ëÇб³ °ø°ú´ëÇРȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â °èÀýÀû º¯È­°¡ ¶Ñ·ÇÇÑ Àå±â°£ ¼öÁú ÀÚ·áÀÇ Æ¯¼ºÀ» °í·ÁÇÏ¿© °æÇ⠺м®À» À§ÇÏ¿© °èÀý ¸Ç-ÄË´Þ °ËÁ¤¹ý, LOWESS¿Í ½Ã °ø°£ ±×·¡ÇÁ¸¦ Ȱ¿ëÇÏ¿´´Ù. ÀÌ ¹æ¹ýµéÀ» ÅëÇÏ¿© ±âÁ¸ÀÇ ¼öÁú °æÇ⠺м®ÀÇ ÇѰèÁ¡À» º¸¿ÏÇÏ¿© Á¤·®ÀûÀ̰í Á¤¼ºÀûÀ¸·Î ¼öÁú °æÇâÀ» ÆÄ¾ÇÇÒ ¼ö ÀÖ´Â ¹æ¾ÈÀ» Á¦½Ã ¹× Àû¿ëÇÏ¿´´Ù. ¿¬±¸ ´ë»ó Áö¿ªÀÎ »õ¸¸±Ý À¯¿ªÀÇ µ¿Áø°­¿¡¼­ ÃøÁ¤µÈ 1995³âºÎÅÍ 2004³â±îÁö 10³â°£ÀÇ °èÀý ¸Ç-ÄË´Þ °ËÁ¤¹ýÀÇ °á°ú¸¦ »ìÆìº¸¸é, BOD¿Í TN ³óµµ´Â °¨¼ÒÇϰųª °æÇâÀÌ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. À̰ÍÀº À¯¿ª ³» ÇϼöÁ¾¸»Ã³¸®ÀåÀÇ Ã³¸®È¿À² Áõ°¡¿Í ¼öÁú ´ëÃ¥ µîÀÇ È¿°ú·Î ÆÇ´ÜµÈ´Ù. ¹Ý¸é TP ³óµµ´Â 11°³ ÁöÁ¡ Áß¿¡¼­ 6°³ ÁöÁ¡¿¡¼­ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù. Áö·ùÀÎ Á¤À¾ÃµÀÇ ¼öÁú ³óµµ´Â ¸ðµç Ç׸ñ¿¡¼­ °³¼±µÇ´Â °æÇâÀ» º¸À̸鼭 ÇÏõÀÇ À¯ÇÏ¿¡ µû¸¥ ÀÚÁ¤ÀÛ¿ëÀÇ È¿°ú¿Í ÇÏõÁÖº¯Á¤È­ »ç¾÷ µîÀÇ È¿°ú¸¦ Àß º¸¿©ÁÖ¾ú´Ù. ±×·¯³ª ¿øÆòõ°ú °íºÎõÀÇ °æ¿ì¿¡´Â ¿¬±¸ ´ë»ó ±â°£ µ¿¾ÈÀÇ ¼öÁúÀÌ º¯È­°¡ ¾ø°Å³ª ¾ÇÈ­µÇ´Â Çö»óÀ» º¸À̱⠶§¹®¿¡ ÇâÈÄ Á¶¼ºµÉ »õ¸¸±Ý ´ã¼öÈ£¿¡ ¾Ç¿µÇâÀ» ¹ÌÄ¥ °¡´É¼ºÀÌ ÀÖ´Ù. ÀÌ·¯ÇÑ °æÇâÀº ½Ã °ø°£ ±×·¡ÇÁ¿¡¼­µµ µ¿ÀÏÇÏ°Ô ³ªÅ¸³­´Ù. µ¿Áø°­ À¯¿ªÀÇ ¼öÁúÀº °ø°£ÀûÀ¸·Î Á¤À¾ÃµÀÇ ¿µÇâÀ» Å©°Ô ¹Þ°í ÀÖÁö ¾ÊÀ¸¸ç ÀüüÀûÀ¸·Î µ¿ÀÏÇÑ °æÇâÀ» º¸À̰í ÀÖ´Ù. ¶ÇÇÑ ½Ã°£ÀûÀ¸·Î´Â ¿¬±¸ ´ë»ó ±â°£ µ¿¾È BOD¿Í TN ³óµµ´Â ¿¬µµº° º¯È­°¡ °ÅÀÇ ¾ø´Â ¹Ý¸é¿¡ TP ³óµµ´Â 1997³â ÀÌÈÄ ¼öÁúÀÌ ¾ÇÈ­µÇ¾î ÇöÀç±îÁö ºñ½ÁÇÑ ¼öÁØÀ¸·Î À¯ÁöµÇ°í ÀÖ´Ù. º» ¿¬±¸¿¡¼­ Àû¿ëÇÑ Á¤·®Àû, Á¤¼ºÀû ±â¹ýÀº Àü¹®°¡µéÀÇ Á¤Ã¥ È¿°ú ¿©ºÎ ¹× ÇâÈÄ Á¤Ã¥ °áÁ¤ µîÀÇ ±âº» ÀÚ·á·Î Ȱ¿ëµÉ ¼ö ÀÖÀ¸¸ç, ÀϹÝÀε鵵 ½±°Ô ¼öÁú º¯È­ Á¤µµ¸¦ ÀÌÇØÇÒ ¼ö Àֱ⠶§¹®¿¡ ÇØ´ç À¯¿ª ÀÌÇØ°ü°èÀÚµéÀÇ À¯¿ª °ü¸® Ȱµ¿À» À¯µµÇÏ´Â µ¥ °úÇÐÀûÀÎ ±Ù°ÅÀÚ·á·Îµµ ÀÌ¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÈ´Ù.
Spatial and temporal analysis of water quality was performed for eleven monitoring stations in Dongjin River watershed in order to determine the trends of monthly water quality. The monthly water quality data of biochemical oxygen demand (BOD), total nitrogen (TN) and total phosphorus (TP) during $1995{sim}2004$, were analyzed utilizing Seasonal Mann-Kendall test, LOWESS and three-dimensional graphic approaches. The results indicated that BOD and TN concentrations had the downward trend, but TP showed the upward trend, especially in Gobucheon. This numerical and graphic analysis is the useful tool to analyze the long-term trend of water quality in a large river system.
 
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Seasonal Mann-Kendall test;LOWESS;trend analysis;trend graph;Saemangeum;water quality;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.1, 2009³â, pp.39-47
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912651518732)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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