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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.43, no.3, 2010³â, pp.385-399
±Ý°­ ¼ö°èÀÇ ½Ã.°ø°£Àû ¼öÁúƯ¼º°ú ÅäÁöÀ̿뵵ÀÇ ¿µÇâ
( Spatial and Temporal Variability of Water Quality in Geum-River Watershed and Their Influences by Landuse Pattern )
ÇÑÁ¤È¿;¹è¿µÁÖ;¾È±¤±¹; Ãæ³²´ëÇб³ »ý¸í°úÇаú;Ãæ³²´ëÇб³ »ý¸í°úÇаú;Ãæ³²´ëÇб³ »ý¸í°úÇаú;
 
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º» ¿¬±¸´Â ±Ý°­ ¼ö°èÀÇ 83°³ ÇÏõ ÁöÁ¡¿¡¼­ ÀÌ È­ÇÐÀû ¼öÁúÀÇ ½Ã °ø°£Àû º¯À̸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿© 2003~2007³â±îÁö ÃøÁ¤µÈ ȯ°æºÎÀÇ ¼öÁúÀڷḦ ºÐ¼®ÇÏ¿´´Ù. ÀÌ¿ëµÈ ¼öÁú º¯¼ö´Â ¼ö¿Â, ¿ëÁ¸»ê¼Ò·®(DO), »ý¹°ÇÐÀû »ê¼Ò¿ä±¸·®(BOD), È­ÇÐÀû »ê¼Ò¿ä±¸·®(COD), ºÎÀ¯¹°(SS), ÃÑÁú¼Ò(TN), ÃÑÀÎ(TP) ¹× Àü±âÀüµµµµ(EC)ÀÇ 8°³ Ç׸ñÀ¸·Î À̵éÀÇ ¼öÁúƯ¼ºÀº ÅäÁöÀ̿뵵, ¿¬º°, °èÀýº°, Á¶»çÁöÁ¡º°·Î Å« º¯À̸¦ º¸¿´´Ù. °¢ ÁöÁ¡µéÀº ÅäÁöÀ̿뵵¿¡ µû¶ó Å©°Ô »ê¸²Çü ÇÏõ(Forest stream, Fo), ³óÁöÇü ÇÏõ(Agricultural stream, Ag), µµ½ÉÇü ÇÏõ(Urban stream, Ur)ÀÇ 3°¡Áö À¯ÇüÀ¸·Î ±¸ºÐÇÏ¿´´Ù. ´ëºÎºÐÀÇ ¼öÁúº¯¼öµéÀº À帶±âÀÎ 7~8¿ù µ¿¾È Á¢Á¾°­¿ì·Î ÀÎÇÏ¿© °èÀýÀû º¯ÀÌ ÆøÀÌ Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù. À帶±â¿¡ À̿ Èñ¼®Çö»óÀÇ ÁöÇ¥·Î ÀÌ¿ëµÇ´Â Àü±âÀüµµµµ¿Í ¿µ¾ç¿°·ùÀÎ ÃÑÁú¼Ò¿Í ÃÑÀÎÀº À帶±â °­¿ì·®°ú ¿ª»ó°ü°ü°è¸¦ º¸ÀÌ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. BOD¿Í COD´Â À帶±â¿¡ Å©°Ô °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, Àü±âÀüµµµµ, TN, TP ³óµµÀÇ ÃÖ¼Ò°ªµµ ¿©¸§Ã¶ À帶±â¿¡ ³ªÅ¸³µ´Âµ¥, ÀÌ´Â ÁýÁß°­¿ì·Î ÇÏõ À¯·®ÀÌ Áõ°¡ÇÏ¿© À̿ ¹× ¿µ¾ç¿°·ù°¡ Èñ¼®µÇ¾ú±â ¶§¹®À¸·Î »ç·áµÈ´Ù. ÀÌ¿¡ ¹ÝÇÏ¿© °èÀýº° SSÀÇ ³óµµ´Â ¿©¸§Ã¶ °­¿ì±â µ¿¾È¿¡ ÁÖ·Î À¯ÀԵǴ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÅäÁöÀ̿뵵¿¡ µû¸¥ °èÀýº° ¼öÁú Ư¼ºÀ» ºÐ¼®ÇÑ °á°ú, BOD, COD, TN, TP ¹× SSÀÇ ³óµµ¿¡¼­´Â °ý¸ñÇÒ¸¸ÇÑ Â÷À̸¦ º¸¿´À¸¸ç, ³óÁöÇü ÇÏõ(Ag)ÀÌ »ê¸²Çü ÇÏõ(Fo)°ú µµ½ÉÇü ÇÏõ(Ur)¿¡ ºñÇÏ¿© BOD, COD, SSÀÇ ³óµµ°¡ ´õ ³ôÀº °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, µµ½ÉÇü ÇÏõ¿¡¼­ TN, TPÀÇ ³óµµ°¡ ´õ ³ô°Ô ³ªÅ¸³ª ¼öÁú¾ÇÈ­°¡ ½É°¢ÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼ö°èÀÇ ¼öÁú°ú ¹ÐÁ¢ÇÑ »ó°ü¼ºÀ» º¸ÀÌ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ¶ÇÇÑ ´ëÀü ¹× ûÁÖÀÇ µµ½É¿¡¼­ Èê·¯³ª¿À´Â ÁöõÀÎ °©Ãµ°ú ¹Ìȣõ µî µµ½ÉÇü ÇÏõÀÌ ±Ý°­ ¼ö°è ÇÏ·ùÀÇ ¼öÁú¾ÇÈ­¿¡ Å« ¿µÇâÀ» ÁÖ´Â °ÍÀ¸·Î ³ªÅ¸³ª ÀÌ·± Áö·ùºÎ¿¡¼­ÀÇ È¿À²ÀûÀÎ ¼öÁú°ü¸®°¡ ½Ã±ÞÇÑ °ÍÀ¸·Î »ç·áµÇ¾ú´Ù.
The objective of this study was to analyze long term temporal trends of water chemistry and spatial heterogeneity for 83 sampling sites of Geum-River watershed using water quality dataset during 2003~2007 (obtained from the Ministry of Environment, Korea). The water quality, based on multi-parameters of temperature, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), total nitrogen (TN), total phosphorus (TP), and electric conductivity (EC), largely varied depending on the landuse patterns, years and seasons. The watershed was classified into three different landuse types: forest stream (Fo), agricultural stream (Ag), and urban stream (Ur). Largest seasonal variabilities in most parameters occurred during the two months of July to August and these were closely associated with large spate of summer monsoon rain. Conductivity, used as a key indicator for an ionic dilution during rainy season, and nutrients of TN and TP had inverse functions of precipitation. BOD, COD decrease during the rainy season. Minimum values in the conductivity, TN, and TP were observed during the summer monsoon, indicating an ionic and nutrient dilution of river water by the rainwater. In contrast, major inputs of suspended solids (SS) occurred during the period of summer monsoon. The landuse patterns analyses, based on the variables of BOD, COD, TN, TP and SS, showed that the values were greater in the agricultural stream (Ag) than in the forest stream (Fo) and urban stream (Ur) and that water quality was worst in the urban stream (Ur). The overall dataset suggest that efficient water quality management, especially in Gap-Stream and Miho-Stream, which showed worst water quality is required along with some of urban stream (Ur), based on the analysis of landuse patterns.
 
Ű¿öµå
Geum-River watershed;stream water quality;landuse pattern;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.43, no.3, 2010³â, pp.385-399
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201009654402832)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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