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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.33, no.3, 2000³â, pp.222-229
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( Monsoon Inflow as a Major Source of In-lake Phosphorus ) |
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| 1993³âºÎÅÍ 1994³â ±îÁö ´ëûȣ¿¡¼ ¿©¸§¸ó¼øÀÇ °µµ¿¡ µû¸¥ ÀÎ(Phosphorus)ÀÇ ½Ã °ø°£Àû º¯À̸¦ Æò°¡ÇÏ¿´´Ù. ¿¬±¸±â°£µ¿¾È Æò±Õ ÃÑÀÎÀº $31;{mu}g/l$ ¿´À¸¸ç, $6;{mu}g/l$¿¡¼ $197;{mu}g/l$±îÁö º¯ÈÇÏ¿´´Ù. ÃÑÀγ󵵴 1993³â 7${sim}$8¿ùÀÇ ¸ó¼ø±â°£µ¿¾È »ó·ù¿¡¼ °¡Àå³ô¾ÒÀ¸¸ç,ÁÖ·Î ÀÔÀÚ¼º ÀÎÀ¸·Î ±¸¼ºµÇ¾ú°í, ³ôÀº ¹«±âÇöʹ° (NVSS)°ú ¹ÐÁ¢ÇÑ °ü°è($R^2=0.74$;p<0.001)¸¦ º¸¿´´Ù. »ó·ù¿¡¼ÀÇ È£¼ö³» ÃÑÀÎÀº À¯ÀÔ¼ö·®°ú Á÷Á¢ÀûÀÎ ÇÔ¼ö°ü°è¸¦ º¸¿´À¸¸ç, ´ïÀ¸·Î ³»·Á°¥¼ö·Ï °¨¼Ò°æÇâÀ» º¸¿´´Ù. 1993³â ÇÏÀý±â¿¡ ÇÏ·ù¿¡¼ ÃÑÀγ󵵴 »ó·ù ÃÖ´ëÄ¡ÀÇ 5ºÐÀÇ 1¼öÁØ¿¡ ºÒ°úÇÏ¿´°í, NVSS¿Í ³·Àº »ó°ü°ü°è¸¦ º¸¿´´Ù. ÇÑÆí 1994³âÀÇ °æ¿ì È£¼ö³» ÃÑÀÎÀº 1993³â¿¡ ºñÇØ ÇöÀúÈ÷ ³·¾ÒÀ¸¸ç, ³·Àº ½Ã°ø°£Àû º¯À̸¦ º¸¿´´Ù. 1994³â ÇÏÀý±âµ¿¾È »ó·ù ¹× Áß·ù¿¡¼ ÃÖ´ë ÃÑÀγ󵵴Â, 1993³â µ¿ÀÏ µÎÁö¿ª¿¡¼ÀÇ ÃÖ´ë°ª¿¡ ºñÇØ, 72%¿Í 52%¾¿ ³·Àº ¹Ý¸é, ÇÏ·ù¿¡¼ ÃÑÀÎÀº µÎÇØ»çÀÌ¿¡ À¯»çÇÏ¿´´Ù. ÀÌ·± °á°ú´Â È£¼ö³» ´ïºÎ±Ù¿¡¼ ÀγóµµÀÇ °èÀýÀû º¯È´Â »ó·ù¿¡ ºñÇØ À¯ÀÔ·®¿¡ ÀÇÇØ ¹Ì¾àÇÑ ¿µÇâÀ» ¹Þ´Â °ÍÀ» ÀǹÌÇÑ´Ù. 1993³â¿¡ °¡À» ¼öÃæÈ¥ÂýÀü Æò±º ÃÑÀγ󵵴 ¼öÃæÈ¥ÇÕÈÄ º¸´Ù ¶Ñ·ÇÇÏ°Ô ³ôÀº ¹Ý¸é, 1994³âÀº ¼öÃþÈ¥ÇÕÈÄ ³óµµ°¡ È¥ÇÕÀüº¸´Ù ³ô¾Ò´Ù. ÀÌ·±°á°ú´Â 1993³âÀÇ °æ¿ì È£¼ö³»ÀÎÀÇ ´ëºÎºÐÀº ÇÏÀý±âµ¿¾È ¿ÜºÎ·ÎºÎÅÍÀÇ ÀκÎÇÏ¿¡ ±âÀÎÇßÀ¸¸ç, 1994³â¿¡ È£¼ö³» ÀÎÀº ÀÚü³»·ÎºÎÅÍ °ø±ÞµÈ °ÍÀ» ÀǹÌÇÑ´Ù. °á·ÐÀûÀ¸·Î, ´ëûȣ³» Àγ󵵴 ¿©¸§À帶ÀÇ °µµ¿¡ ÀÇÇØ Å©°Ô °áÁ¤µÇ¸ç, ÀΰøÈ£¶ó´Â Å« °ø°£Àû ÀÌÁú¼º ¶§¹®¿¡ È£¼ö³» ´ï ȤÀº »ó·ù±ÙóÀÇ ´ÜÀÏÁöÁ¡¿¡¼ ÃøÁ¤µÈ ÀÎ³óµµ ÀÚ·á´Â È£¼öÀüüÀÇ °èÀýÀû Ư¼ºÀ» ÆÄ¾ÇÇÒ ¶§ °í·ÁµÇ¾î¾ß ÇÑ´Ù°í »ç·áµÈ´Ù.sim}$5 m) °ªÀº '93³âºÎÅÍ '98³â±îÁö °¢°¢ 4.8, 11.2, 6.4, 17.6, 10.0 ¹× 5.0 mg/m$^{3}$À̾ú´Ù. µû¶ó¼ ¾Èµ¿È£´Â ÃÑÀÎ, ÃÑÁú¼Ò ¹× ¿±·Ï¼Ò ³óµµ·Î º¼ ¶§ Áß¿µ¾çÈ£¿¡¼ ºÎ¿µ¾çÈ£ÀÇ »çÀÌ¿¡ ÀÖ´Â °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.73.0g/m^2$ÀÇ ¹üÀ§À̾ú´Ù. Çѹݵµ¿¡¼ °Å¸Ó¸®¸»ÀÇ »ýÀ°È¯°æÀº ±â¼öÈ£ÀÎ ÈÁøÆ÷È£±îÁö ºÐÆ÷µÇ¾úÀ¸¸ç, ÇüÅÂÇÐÀûÀΠƯ¡ÀÌ ´Ù¾çÇÏ°Ô ÃâÇöÇÏ¿´´Ù.ÇâÀ» ÁÖ°í ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù.À¸·ÎÀÇ À¯¿ª°ü¸®´Â Á¡¿À¿°¿øÀÇ °ü¸®¿Í ´õºÒ¾î ºñ·á»ç¿ë·®ÀÇ Ãà¼Ò, Ãà»êºÐ´¢ÀÇ ÀûÀýÇÑ Ã³¸®, Åä¾çÀ¯½Ç¹æÁöµî À¯¿ªÀÇ ºñÁ¡¿À¿°¿ø¿¡ ´ëÇÑ °ü¸®¿¡ ´õ¿í ÁýÁßÇØ¾ß ÇÒ °ÍÀ¸·Î º¸ÀδÙ.¾÷¿ë Àú¼öÁöÀÇ ¼öÁú¿¹Ãø¿¡ ÀÖ¾î´Â º¹ÀâÇÑ À¯Ãâ¸ðÇüÀ̳ª À¯¿ª¸ðÇü, È£¼Ò¼öÁú¸ðÇü µîÀ» »ç¿ëÇϱ⺸´Ù´Â º» ¿¬±¸¿¡¼¿Í¡¡°°ÀÌ ±âÁ¸ÀڷḦ ºÐ¼®ÇÏ¿© µµÃâÇÑ °æÇèÀû °ü°è½ÄÀ» »ç¿ëÇÏ¸é ºñ±³Àû ÀûÀº ³ë·ÂÀ¸·Îµµ »ó´çÈ÷ ½Å·Ú¼ºÀÖ°Ô ¿¹ÃøÇÏ¿© ¼öÁú°ü¸®¿¡ µµ¿òÀÌ µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.°¡ Á¤ÈÈ¿À²°úÀÇ »ó°ü°ü°èº¸´Ù Á»´õ À¯ÀǼº ÀÖ°Ô ³ªÅ¸³µ´Ù. À̰ÍÀº ³ôÀº ¼ö¸®ÇÐÀû ºÎÇÏÁ¶°ÇÀÌ ¿µ¾ç¿°·ù µîÀÇ Á¤ÈÈ¿À²¿¡´Â Å©°Ô ¿µÇâÀ» ¹ÌÄ¡Áö ¾ÊÀ½À» º¸¿©ÁÖ°í ÀÖÀ¸¸ç, µû¶ó¼ ºñ±³Àû ³·Àº ³óµµÀÇ ¿µ¾ç¿°·ù¸¦ °¡Áö°í ÀÖ°í, ¸¹Àº 󸮼ö·®À» ¿ä±¸ÇÏ´Â ºÎ¿µ¾çÈµÈ Àú¼öÁöÀÇ ¼öÁú°³¼±À» À§Çؼ´Â ³ôÀº ¼ö¸®ÇÐÀû ºÎÇÏÁ¶°Ç¿¡¼ ½Ã°£´ç Á¤È·®À» ´Ã¸®´Â °ü¸®¹æ¹ýÀÌ °æÁ¦ÀûÀ̸ç, ÀÌ¿¡ ÃÊÁ¡À» ¸ÂÃß¾î ³ª°¡¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.µµ·Î °ËÃâµÇ¾î À̸¦ °í·ÁÇÑÁ¤¼ö°øÁ¤ÀÇ °ü¸®°¡ ÇÊ¿äÇϸ®¶ó »ý°¢µÈ´Ù.$yr^{-1}$)ÀÇ 71%°¡ °¨¼ÒµÇ¾î¾ß ÇÒ Çʿ伺ÀÌ Á¦±âµÇ¾ú´Ù. ¶ÇÇÑ ¿©¸§Ã¶ ½ÉÃþ »ê¼Ò °í°¥ÀÌ ¾ß±âµÇ¾ú°í, ÀÌ ½Ã±â¿¡ ÅðÀû¹°·Î ¿ëÃâµÈ ÀÎÀÌ ½Ä¹°Çöûũſ ¼ºÀå¿¡ ÀÌ¿ëµÉ ¼ö Àֱ⶧¹®¿¡ ÅðÀû¹°¿¡ ´ëÇÑ °ü¸®µµ ¼öÇàµÉ Çʿ䰡 ÀÖ´Ù.rsity)Áö¼ö´Â 2000³â 7¿ù¿¡ 2.22·Î °¡Àå ³ô¾ÒÀ¸¸ç, »ý¹°·®µµ Á¶»ç±â°£Áß 36,640 cells $ |
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| Spatial and temporal variation of phosphorus in response to intensity of summer monsoon was evaluated in Taechung Reservoir during 1993${sim}$1994. Total phosphorus (TP) averaged 31 ${mu}$g/l during the study and varied from 6 to 197 ${mu}$g/l. Concentrations of TP were highest in the headwaters during the monsoon of July${sim}$August 1993, and these values were mainly made of particulate P and were closely associated (R$^{2}$=0.74, p<0.001) with high inorganic suspended solids (NVSS). In-lake TP in the headwaters was mainly influenced by the watershed runoff and declined toward the dam. Values of TP downlake was only one-fifth of the peak in the headwaters and had no correlation with NVSS. In 1994, inlake TP was markedly lower relative to 1993 and showed low spatial and temporal variation. Maximum TP during monsoon 1994 in the headwaters and mid-lake was 72% and 52% lower, respectively, than in those two zones in 1993 whereas TP downlake was similar between the two years. These results suggest that temporal variation downlake is much less influenced by seasonal inflow compared to the haedwaters. In 1993, mean TP before fall overturn, based on average value for all sites, was significantly (t=5.99, p<0.001) greater than the mean after fall overturn, whereas in 1994 mean TP after fall overturn (32 ${mu}$g/l) was greater. This outcome indicates that in 1993 major P-input originated from the external source from the watershed during the intense monsoon, whereas in 1994 internal processes dominated during the weak monsoon. Overall data suggest that annual budget of inlake P is regulated by intensity of the summer monsoon, and phosphorus data measured at single site near the dam or headwater zone may not be represent seasonal trends of the system due to large spatial variation of Taechung Reservoir. |
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| Phosphorus;Monsoon;Inflow;Reservoir;Suspended solids;Korea; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.33, no.3, 2000³â, pp.222-229
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200018317175970)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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