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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.33, no.2, 2000³â, pp.109-118
½ÃÈ­È£¿¡¼­ ¹«±â¿µ¾ç¿°°ú ½Ä¹°ÇöûũſÀÇ µ¿ÅÂ
( Dynamics of Inorganic Nutrients and Phytoplankton in Shihwa Reservoir )
±èµ¿¼·;Á¶°æÁ¦;½ÅÀç±â; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò ¼öÀÚ¿ø¿¬±¸ºÎ;ÀÎÁ¦´ëÇб³ ȯ°æ½Ã½ºÅÛÇкÎ;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò ¼öÀÚ¿ø¿¬±¸ºÎ;
 
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¼­ÇؾÈÀÇ ½Åµµ½Ã ¹× »ê¾÷´ÜÁö ±Ù±³¿¡ À§Ä¡ÇÑ ½ÃÈ­È£¿¡¼­ À¯ÀÔÁöõ ºÎ±ÙÀÇ »ó·ùºÎÅÍ ÃÖÇÏ·ù¿¡ ÇØ´çÇÏ´Â ¼ö¹®±îÁö 8°³ ÁöÁ¡¿¡¼­ 1999³â¿¡ ¼öÁß ¹«±â¿µ¾ç¿°°ú ½Ä¹°Çöûũſ º¯µ¿À» ¸Å¿ù 1${sim}$2ȸ¾¿ Á¶»çÇÏ¿´´Ù. ¼öȯ°æ ¿äÀÎ Áß NH$_{4}$, SRP ¹× SRSiÀÇ Æò±Õ³óµµ´Â °¢°¢ 522.7 ${mu}$g N/l, 9.8 ${mu}$g P/l ¹× 0.16 mg Si/l¼öÁØÀ̾ú´Ù. ¹«±â¿µ¾ç¿°Àº À¯¿ª¿¡¼­ °­¿ì°¡ ÀÖÀº Á÷ÈÄ¿¡ È£¼Ò³»ºÎ·Î ´Ù·® À¯ÀÔµÇ¾î ¼öÁúÀ» ¸Å¿ì ¾ÇÈ­½ÃÄ×°í »ó·ù¿¡¼­ ÇÏ·ù·Î °¥¼ö·Ï ±Þ°ÝÇÏ°Ô °¨¼ÒµÇ´Â °æÇâÀ» º¸¿´´Ù. ¹Ý¸é¿¡ NO$_{3}$´Â »ó${cdot}$ÇÏ·ù°£¿¡ Å« Â÷À̰¡ ¾ø¾ú°í µ¿°è¿¡ ºñ±³Àû ³ô¾Ò´Ù. Chl-a´Â Æò±Õ°ªÀÌ 37.2 ${mu}$g/l (ÃÖ´ë 142.5 ${mu}$g/l)·Î¼­ »ó·ùºÎ¿¡¼­ ³ô¾Ò°í Áõ°¨ ¾ç»óÀ¸·Î º¼ ¶§ NH$_{4}$, SRP ¹× SRSi ¿µ¾ç¿°ÀÇ º¯µ¿°ú ¹ÐÁ¢ÇÑ °ü·Ã¼ºÀÌ ÀÖ¾ú´Ù. ½Ä¹°ÇöûũſÀº Ãß°è¿Í µ¿°è¿¡ ±ÔÁ¶·ù¿Í ÇÁ¶ó½Ã³ëÁ¶·ù°¡ ¸¹¾Ò°í Çϰ迡´Â ¿ÍÆí¸ðÁ¶·ù°¡ dzºÎÇÏ¿´´Ù. °èÀý¿¡ µû¸¥ ÁÖ¿ä ¿ìÁ¡Á¾Àº ±ÔÁ¶·ù Skeletonema costatum, ¿ÍÆí¸ðÁ¶·ù Prorocentrum minimum, ÀºÆí¸ðÁ¶·ù Chroomonas spp., À¯±Û·¹³ªÁ¶·ù Eureptiella gymnastica ¹× ÇÁ¶ó½Ã³ëÁ¶·ù Pyramimonas spp.°¡ ÇØ´çÇÏ¿´´Ù. ½ÃÈ­È£´Â ÇØ¼öÀ¯ÀÔ ÈÄ¿¡ Áß${cdot}$ÇÏ·ù¿Í´Â ´Þ¸® »ó·ùºÎ¿¡¼­ dzºÎÇÑ ¿µ¾ç¿°À» ±â¹ÝÀ¸·Î ¸¸¼ºÀûÀÎ ½Ä¹°ÇöûũſÀÇ ´ë¹ß»ýÀÌ Áö¼ÓÀûÀ¸·Î °üÂûµÇ°í ÀÖ¾î »ýÅÂÇÐÀû °üÁ¡À¸·Î º¼ ¶§ ÀÌ¿¡ ´ëÇÑ À¯ÀÔÇÏõÀÇ ¼öÁú°ü¸®°¡ ¸Å¿ì Áß¿äÇÏ°í ½Ã±ÞÇÑ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. ³²Á¶¼¼±ÕÀÇ È°·ÂÀÌ ¶³¾îÁú ¶§ ±× ¿ªÇÒÀÌ ´õ¿í µÎµå·¯Áø´Ù´Â »ç½ÇÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.¿Â(9.11%), ÃÑ ÀÎ(7.67%), ¿±·Ï¼Ò a (6.20%)°¡ ¾çÀÇ ¿µÇâÀ» ³ªÅ¸³»¾ú´Ù.¸®°í NO$_{2}$-N (19.75%)°¡ ¾çÀÇ ¿µÇâÀ», NO$_{3}$-N (28.30%)°¡ À½ÀÇ ¿µÇâÀ» ¹ÌÄ¡°í ÀÖÀ¸¸ç, ±â¼ö¿ª(Á¤Á¡ 5${sim}$Á¤Á¡ 12)¿¡¼­´Â ¼ö¿Â(29.49%), NO$_{3}$-N (28.27%) ±×¸®°í NO$_{2}$-N (22.87%)°¡ ¾çÀÇ ¿µÇâÀ» ¹ÌÄ¡°í ÀÖ´Â ¹Ý¸é, Àüµµµµ (30.18%)¿Í DO (13.53%)´Â À½ÀÇ ¿µÇâÀ» ¹ÌÄ¡°í ÀÖ¾ú´Ù. 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
The dynamics of inorganic nutrients and phytoplankton population were examined at eight stations of Shihwa Reservoir, which situated near the cities newly constructed and the industrial complex of West-sea in Korea, from January to December 1999. Among environmental factors, average concentration of $NH_4$, SRP and SRSi were $522.7;{mu}g;N/l$, $9.8;{mu}g;N/l$ and $0.26;{mu}g;Si/l$, respectively. Water quality was extremely deteriorated by a great amount of pollutants load into inner reservoir after the event of rainfall. Nutrients concentration was suddenly decreased toward the lower part. While $NO_3$ concentration did not much varied among stations, but it was relatively high in winter season. Chlorophyll-a concentration was high at the upper part of the reservoir, with average of $37.2;{mu}/l$, and closely related to the fluctuation of $NH_4$, SRP and SRSi concentrations. The phytoplankton development in the water column was dominated by diatom (autumn), prasinoid (winter) and dinoflagellate (summer). Dominant phytoplankton were composed to Skeletonema costatum of diatom, Prorocentrum minimum of dinoflagellate, Chroomonas spp. of cryptomonad, Eutreptiella gymnastica of euglenoid and Pyramimonas spp. of prasinoid. The large bloom of phytoplankton at the upper zone of the Shihwa Reservoir after inflow of a seawater were consistently observed. In consequence, water quality management of the inlet stream was assessed to be very important and urgent.
 
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Shihwa Reservoir;$NH_4$;SRP;SRSi;Chlorophyll-a;Phytoplankton;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.33, no.2, 2000³â, pp.109-118
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200018317175548)
¾ð¾î : Çѱ¹¾î
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