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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.31, no.1, 1998³â, pp.67-67
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³«µ¿° ÇÏ·ù¿¡¼ µ¿.ÇÏ°è ¹«±â N.P ¿µ¾ç¿°·ù¿Í ½Ä¹°ÇöûũſÀÇ µ¿ÅÂ
( Dynamics of inorganic N.P nutrient and planktonic algae during summer and winter in downstream of the Naktong River ) |
| Á¶°æÁ¦;½ÅÀç±â; ÀÎÁ¦´ëÇб³ »ý¹°Çаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;
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| ³«µ¿° ÇÏ·ù ±¸Æ÷±³¿Í ¼³«µ¿°ÀÇ ¼±¾Ï±³¿¡¼ ³²Á¶ Microcystis aeruginosa¿Í ±ÔÁ¶ Stephanodiscus hantzschii f. tenuis°¡ °¢°¢ ´Üµ¶À¸·Î ´ë¹ß»ýÇÏ´Â ¿©¸§(96³â $6{sim}9$¿ù)°ú °Ü¿ï(96³â 11¿ù${sim}97$³â 3¿ù)¿¡ ¹«±â N P¿µ¾ç¿°·ù¿Í ´ã¼öÁ¶·ùÀÇ º¯µ¿À» ¸ð´ÏÅ͸µÇÏ¿´´Ù. µÎ °³Ã¼±ºÀÌ ¹ø¹«Çß´ø ¿©¸§°ú °Ü¿ïÀÇ Æò±Õ chl-a ³óµµ´Â °¢°¢ $100;{mu}g/l$ ¹× $111;{mu}g/l$¿´´Ù. ¿©¸§¿¡´Â $NH_4$ ³óµµ°¡ »ó´ëÀûÀ¸·Î ³·¾Ò°í °Ü¿ï¿¡´Â ¼ÒÇü ±ÔÁ¶·ùÀÇ ¹ø¹«·Î $SiO_2$ ¹× SRP´Â Á¶·ù ´ë¹ß»ý ±â°£ ³»³» °ÅÀÇ °í°¥ »óÅ¿´´Ù. ƯÈ÷ Microcystis°¡ scumÀ» Çü¼ºÇÏ´Â 8¿ù¿¡´Â $NO_3$°¡ ÇöÀúÇÏ°Ô °¨¼ÒÇÏ¿´À¸¸ç µ¿½Ã¿¡ $NH_4$¿Í SRPÀÇ Áõ°¡ pulse°¡ °üÂûµÇ¾î ÀúÁúÅðÀûÃþÀÇ ¿µÇâÀÌ Å« °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼öÁú ºÐ¼® °á°ú Microcystis »ýÀå¿¡´Â $NH_4$°¡, Stephanodiscus¿¡´Â SRP¿Í $SiO_2$°¡ Áß¿ä ¿äÀÎÀ̾úÀ¸¸ç Á¶·ùÀÇ »ýÀåÀ» Á¦ÇÑÇÏ´Â ÀÎÀÚ°¡ µÉ ¼ö ÀÖ´Ù. ³«µ¿° ÇÏ·ù¿¡¼ N P ¿µ¾ç¿°·ùÀÇ ³óµµ º¯µ¿Àº ¿ÜºÎ ¶Ç´Â ³»ºÎ ºÎÇÏ »Ó ¾Æ´Ï¶ó ´ã¼öÁ¶·ù¿¡ ÀÇÇÑ ¿µ¾ç¿°·ùÀÇ ÀÌ¿ë ¹× Èí¼ö¿Í ¹ÐÁ¢ÇÑ °ü·ÃÀÌ ÀÖ´Â °ÍÀ¸·Î ÃßÁ¤µÈ´Ù. |
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| The dynamics of inorganic nutrient and algal population were monitored in the downstream of the Naktong River, in which the planktonic algae bloomed in summer and winter. Mean chlorophyll-a concentration amounted to $100;{mu}g/l$ during Microcystis aeruginosa bloom in summer and $111;{mu}g/l$ during Stephanodiscus hantzschii f. tenuis bloom in winter respectively. Ammonium concentration was relatively low in summer, however, silica and soluble phosphorus concentrations were persistently exhausted during the algal bloom in winter. In August, nitrate distinctly decreased, however, ammonium and phosphorus, which would be pulsed from the sediment, increased. It is suggested that ammonium would be a primary factor for the Microcystisalgal growth and phosphorus and silica would limit the Stephanodiscus algal growth. The inorganic nutrient dynamics of the Naktong River would be influenced with external or internal nutrient loading as well as algal nutrient uptake. Two dominant algal populations would be the best competitors for the prevailing nutrient conditions of the Naktong River. |
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| Ű¿öµå |
| inorganic N.P;Microcystis;Naktong river;silica;Stephanodiscus; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.31, no.1, 1998³â, pp.67-67
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199810102424386)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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