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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.1, 2003³â, pp.18-38
ÆòÅÃÈ£¿Í À¯¿ª ÁÖ¿ä ÇÏõÀÇ ¼öȯ°æ ¹× ¿À¿°µµ Æò°¡
( Assessment of Water Quality in Pyeongtaek Reservoir and Its Main Tributaries )
½ÅÀç±â;Ȳ¼øÁø;Á¶°æÁ¦; ÀÎÁ¦´ëÇб³;°Ç±¹´ëÇб³;ÀÎÁ¦´ëÇб³;
 
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ÆòÅÃÈ£¿Í À¯¿ª ÁÖ¿ä ÇÏõÀ» ´ë»óÀ¸·Î ¼öÁú ¿À¿°µµ¸¦ Æò°¡Çϱâ À§ÇØ 2000³â 3¿ùºÎÅÍ 12¿ù±îÁö °èÀýº°·Î 4ȸÁ¶»çÇÏ¿´´Ù. À¯ÀÔÇÏõ¿¡¼­ TN Áß NH©þ°¡ Â÷ÁöÇÏ´Â ºñÁßÀÌ ³ô¾Ò´Ù. Àú¼öÁö¿¡¼­ TN°ú NH©þ´Â µ¿°è¿¡ ³ô°í Çϰ迡 ³·¾ÒÀ¸³ª, NO©ý¿Í NO©ü´Â ´Ù¸¥ ½Ã±â¿¡ ºñÇØ °¢°¢ 12¿ù°ú 6¿ù¿¡ 1.6~2.4¹è, 5.3~11.4¹è ´õ ¸¹¾Ò´Ù. Á¤Á¡°£¿¡ ³óµµ´Â ¼ººÐ¿¡ µû¶ó Â÷À̰¡ ÀÖ¾î ¹«±â N Áß NH©þ´Â »ó·ù¿¡¼­ °¡Àå dzºÎÇÏ¿´°í NO©ý´Â Å« Â÷À̰¡ ¾ø°Å³ª ÇÏ·ù·Î °¥¼ö·Ï Áõ°¡ÇÏ´Â ¾ç»óÀÌ °üÂûµÇ¾ú´Ù. ÇÏõ¿¡¼­ SRP´Â TP¿¡¼­ Â÷ÁöÇÏ´Â ºñÀ²ÀÌ 25~69% ¹üÀ§À̾ú´Ù. Àú¼öÁö¿¡¼­ P¼ººÐÀº N°ú´Â ´Þ¸® Çϰ踦 Á¦¿ÜÇϰí´Â »ó·ù¿¡¼­ ÇÏ·ù·Î °¥¼ö·Ï ±Þ°¨ÇÏ´Â °æÇâÀÌ ÇöÀúÇÏ¿´´Ù. SRSi´Â Æò±Õ°ªÀ¸·Î º¼ ¶§, °­¿ì°¡ ÀÖÀº Á÷ÈÄÀÎ Ãß°è¿¡ ´Ù¼Ò Áõ°¡ÇÏ¿´´Ù. ÇÏõ¿¡¼­ chl-aÀÇ Æò±Õ ³óµµ°¡ 9~33 §¶/l ¹üÀ§À̾ú°í, ÇÏ·ù¿¡¼­ ºñ±³Àû ³óµµ°¡ ³ôÀº ¹Ý¸é¿¡, Àú¼öÁö´Â NH©þ¿Í SRP°¡ ³ôÀº »ó·ù¿¡¼­ °¡Àå ³ô¾Ò´Ù. ƯÈ÷, 3¿ù¿¡´Â ±ÔÁ¶·ù¿Í ÀºÆí¸ðÁ¶·ù°¡, 9¿ù¿¡´Â ³²Á¶·ù°¡ ´ë¹ß»ýÇÑ ½Ã±â·Î¼­ ÃÖ´ë°ªÀÌ °¢°¢ 108 §¶/l¿Í 130§¶/l¸¦ ±â·ÏÇÏ¿´´Ù. N°ú P¿µ¾ç¿°ÀÇ ³óµµ·Î º¼ ¶§, ÇÏ·ù¿¡ À§Ä¡ÇÑ ÆòÅÃÈ£¿¡ ¹ÌÄ¥ ¼ö ÀÖ´Â ¿À¿° ºÎÇÏ´Â ¾È¼ºÃµ<¿À»êõ+ÁøÀ§Ãµ<¼ºÈ¯Ãµ<¼­Á¤Ãµ ¹× Ȳ±¸Áöõ ¼øÀ¸·Î ÄÇ´Ù. À¯¿ª¿¡ À§Ä¡ÇÑ ÁÖ¿ä ÇÏõÀÇ ¼öÁú¾ÇÈ­´Â Çϼöó¸®Àå°ú ¹Ìó¸®µÈ »ýȰÇϼöÀÇ ¹èÃâ¼ö°¡ ÁÖ¿À¿°¿øÀ¸·Î ³ªÅ¸³µ´Ù. ÆòÅÃÈ£ÀÇ ¼öÁú¿À¿°Àº À¯¿ªÀÇ »ó·ùÇÏõÀ¸·ÎºÎÅÍ °ú´ÙÇÑ N¡¤P ¿µ¾ç¿°ÀÌ À¯ÀÔµÇ¾î ¾ß±âµÇ´Â ÀüÇüÀûÀÎ ºÎ¿µ¾çÈ­Çö»óÀ¸·Î º¼ ¼ö ÀÖ¾ú°í, µ¿¡¤ÇϰèÀÇ °èÀýÀû Ư¼ºÀÌ ¶Ñ·ÇÇÏ¿´´Ù.
The water quality of the Pyeongtaek Reservoir and its main streams has been evaluated for water pollution state in March, June, September and December, 2000. The following are the findings: NH©þaccounts for the majority of TN in the inflow streams. In the reservoir, TN and NH©þare the more present in the winter season and less in the summer season, with 1.6~2.4 times of NO©ýand 5.3~11.4 times of NO©üfound in December and June compared with other seasons. The concentration of each component is different between streams; NH©þamong inorganic nitrogen has the highest concentration in the upstream, and NO©ýis more prevalent in the downstream. SRP accounts for 25~69% of TP in the stream. Unlike N component, P component in the reservoir rapidly decreases from upstream toward downstream, except in the summer. Average SRSi slightly increases in the fall, i.e., immediately after rainfall. In the streams, the average concentration of chlorophyll-a ranges from 9 to 33 §¶/l, and is relatively high in the downstream. In contrast, in the reservoir, it is the highest in the upstream where NH©þand SRP are frequently found. In particular, diatom and cryptomonad algae are bloomed in March, and blue-green algae in September; their maximum values are 108 §¶/l and 130 §¶/l, respectively. Considering the concentration of N and P nutrients, pollution loads can affect the Pyeongtaek Reservoir in the downstream in this order: Ansong Stream
 
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watershed;water quality;eutrophication;nitrogen;phosphorus;waste-water;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.1, 2003³â, pp.18-38
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200310103401176)
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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