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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.39, no.2, 2006³â, pp.236-244
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( Water Quality Fluctuation Study of Paldang Reservoir Affected by Gyeongan Stream Inflow according to Rainfall )
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°æ¾Èõ À¯ÀÔºÎ(G 1)ºÎÅÍ ÆÈ´ç´ï ¾Õ (P)±îÁöÀÇ 2002³âµµ ¼öÁúº¯µ¿À» ÆÈ´çÈ£ Àüü ¼öÁúºÐÆ÷¹× °­¿ì½Ã±â µî°ú ¿¬µ¿ÇÏ¿© Æò°¡ÇÏ¿´´Ù. ¿¬Æò±Õ COD, ÃÑÀÎ ¹× ÃÑÁú¼Ò ³óµµ´Â °æ¾Èõ À¯ÀԺο¡¼­ ´ï ÂÊÀ¸·Î °¥¼ö·Ï ³óµµ°¡ Å©°Ô ³·¾ÆÁö´Â °ÍÀ¸·Î ³ªÅ¸³ª, °æ¾Èõ À¯ÀÔÇÏõÀÇ ³ôÀº ¿À¿°µµ°¡ Á÷Á¢ ´ï ¾Õ ¼öÁú¿¡ ¹ÌÄ¡´Â ¿µÇâÀº Å©Áö ¾ÊÀº °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. Á¶»ç½Ã±â ¹× ÁöÁ¡º° COD, ÃÑÀÎ ¹× ÃÑÁú¼Ò ³óµµ´Â °­¿ì±â (8, 9¿ù)°¡ ´Ù¸¥ Á¶»ç½Ã±â¿¡ ºñÇØ ÁöÁ¡ °£ Â÷À̰¡ Àû°í, Ãʱâ³óµµµµ »ó´ëÀûÀ¸·Î ³·¾Ò´Ù. Ŭ·Î·ÎÇÊ a ³óµµ´Â °­¿ì±â ÀÌÈÄ(10 ${sim}$ 12¿ù)º¸´Ù´Â ÀÌÀü(3${sim}$6¿ù)¿¡ °¢ ÁöÁ¡º° ³óµµÂ÷À̰¡ Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÆÈ´çÈ£ Àüü ¼öÁúºÐÆ÷¿¡¼­, ºÏÇѰ­ À¯ÀÔ¼ö¿ª ¼ö¿ÂÀº ´Ù¸¥ ¼ö¿ª¿¡ ºñÇØ 8¿ùÀº ³·°í 11¿ù¿¡´Â ³ô°Ô ³ªÅ¸³µ´Ù. COD¿Í SS³óµµ´Â °­¿ì±â¿¡´Â °¢ ¼ö¿ªº°·Î ºñ±³Àû Å« ³óµµÂ÷À̸¦ º¸¿´À¸³ª 11¿ù¿¡´Â Å« Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò°í, ³óµµµµ ³·¾Ò´Ù. 4¿ù ³ô¾Ò´ø Ŭ·Î·ÎÇÊ a ³óµµ´Â °­¿ì±â¿¡´Â ÇöÀúÇÏ°Ô ³·Àº ³óµµ¸¦ º¸¿´´Ù. 4¿ù¿¡´Â ºñ±³Àû ¼ö½ÉÀÌ ³·Àº °æ¾Èõ À¯ÀÔ¼ö¿ª¿¡¼­µµ 8¿ù ¹× 11¿ù¿¡ ºñÇØ Ç¥Ãþ°ú ½ÉÃþ°£ÀÇ ¼ö¿Â Â÷°¡ Å©°Ô ³ªÅ¸³µ´Ù. ´ï ¾Õ ÁöÁ¡ SS³óµµ´Â 4¿ù¿¡ Ç¥Ãþ¿¡¼­ ³ô°í 8¿ù¿¡´Â ½ÉÃþ¿¡¼­ ³ô¾Ò´Ù. ¶ÇÇÑ COD, ÃÑÀÎ, ÃÑÁú¼Ò ³óµµ´Â 8¿ùÀÌ 4¿ù¿¡ ºñÇØ »ó ${cdot}$ ÇÏÃþÀÌ ºñ±³Àû Àß È¥Çյǰí, ÇöÀúÇÏ°Ô ³·Àº ³óµµ¸¦ º¸¿´À¸¸ç, 11¿ù¿¡µµ ³·Àº ³óµµ¸¦ À¯ÁöÇϰí ÀÖ´Â °ÍÀ¸·Î º¼ ¶§, ÆÈ´çÈ£¿¡¼­ ¼öÁú°ü¸®¿¡ ÁýÁßÇØ¾ß µÉ ½Ã±â´Â ¿©¸§°¡À»º¸´Ù´Â º½¿©¸§±â°£ ÁßÀÎ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù.
Water quality fluctuation of Gyeongan water area in Paldang reservoir, which measured from the downstream sampling point of Gyeongan stream (G1) to dam sampling point (P), was examined in the light of seasonal rainfall and regional difference in the year of 2002. Annual COD, T-P and T-N concentration dropped conspicuously at the point P (in front of dam) although concentration of Gl point was high. Concentration variation of COD, T-P and T-N from Gl to P point in Gyeongan area was small in August and September. And at G l point showed relatively low concentration. Chlorophyll-a concentration varies less during the autumn season (October to December) than spring season (March to June). Water temperature of Bughangang (north Han-river) area was relatively lower in August and higher in November compared with that of other areas. COD and SS concentration showed big regional difference except in November when the concentrations of which were relatively low. The high Chlorophyll-a concentration of April fell conspicuously in rainy season. Gyeongan area, where the water depth is relatively shallow, indicated steep temperature gradient in April compared with that in August or November. High 55 concentration in April at P point characterized surface layer while the opposite was recorded in August. Mixing of upper and lower layers had taken place causing dilution of COD, T-N and T-P concentration in August. This condition was maintained throughout November. Therefore, spring-summer seasons needed more attention for water management countermeasure than summer-autumn seasons.
 
Ű¿öµå
Gyeongan water area;Paldang reservoir;rainfall;COD;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.39, no.2, 2006³â, pp.236-244
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200618317186974)
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