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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.4, 2001³â, pp.267-276
ºÎ¿µ¾çÇÑ ÇѰ­ÇÏ·ù¼ö¿ª¿¡¼­ ½Ä¹°ÇöûũſÀÇ 1Â÷»ý»ê
( Primary Productivity of Phytoplankton at the Eutrophic down Reach of a Regulated River (the Han River, Korea) )
³²±ÃÇö;Ȳ±æ¼ø;±è°©¼ö;±è¹üö; °­¿ø´ëÇб³ ȯ°æ°úÇаú;³ó¾÷±â¹Ý°ø»ç ³ó¾îÃÌ¿¬±¸¿ø;¼­¿ï½ÃÁ¤°³¹ß¿¬±¸¿ø;°­¿ø´ëÇб³ ȯ°æ°úÇаú;
 
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¼öµµ±ÇÀÇ Á߽ɺθ¦ °¡·ÎÁö¸£´Â ÇѰ­ÀÇ ÇÏ·ù¼ö¿ªÀº Á¶¼öÀÇ ¿µÇâÀ» ¹ÞÀ» ¼ö ÀÖ´Â Çϱ¸ÀÇ »ó´ÜºÎ¿¡ À§Ä¡ÇØ ÀÖ´Ù. ÇѰ­ ÇÏ·ù¼ö¿ªÀº ÇѰ­Á¾ÇÕ°³¹ß»ç¾÷ÀÇ ÀÏȯÀ¸·Î ÀÌ·ç¾îÁø Áؼ³°ú ¼öÁߺ¸ °Ç¼³¿¡ ÀÇÇØ¼­ °­¹°ÀÌ Á¤Ã¼µÇ¾úÀ¸¸ç, ¶ÇÇÑ ÁöõÀ¸·ÎºÎÅÍ À¯ÀԵǴ ¸¹Àº ¿À¿°¹°Áú¿¡ ÀÇÇØ¼­ ½Ä¹°ÇöûũſÀÇ ´ë·® ¹ß»ýÀ» ÃËÁøÇÒ ¼ö Àִ ȯ°æÀ¸·Î º¯È­µÇ¾ú´Ù. º» ¿¬±¸¿¡¼­´Â ºÎ¿µ¾çÇÑ ÇѰ­ ÇÏ·ù¼ö¿ª¿¡¼­ ½Ä¹°ÇöûũſÀÇ 1Â÷»ý»êÀ» ÃøÁ¤ÇÏ¿´À¸¸ç, ´õºÒ¾î ³»ºÎ»ý¼ºÀ¯±â¹°°ú ¿ÜºÎ±â¿øÀ¯±â¹°À» »êÁ¤ÇÏ¿´´Ù. 1Â÷»ý»ê·ÂÀº C-14 uptake¹ý°ú P-I ¸ðµ¨¹ýÀ¸·Î ÃøÁ¤ÇÏ¿´´Ù. 1Â÷»ý»ê·ÂÀÇ ¹üÀ§´Â $140{sim}4,890;mgC;m^{-2};d^{-1}$ (Áß¾Ó°ª $1,865;mgC;m^{-2};d^{-1}$)À̾úÀ¸¸ç, ±¹³»ÀÇ ºÎ¿µ¾çÇÑ È£¼ö¿Í À¯»çÇÑ ¼öÁØÀ̾ú´Ù. ½Ä¹°ÇöûũſÀÇ »ý¹°·® º¯µ¿Àº º½Ã¶¿¡ ÃÖ´ëÄ¡¸¦ º¸¿´À¸¸ç, À¯·®ÀÇ º¯È­¿Í °ü·ÃÀÌ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¿ÜºÎ±â¿øÀ¯±â¹°Àº ¿©¸§Ã¶ Èï¼ö±â¸¦ Á¦¿ÜÇÑ ¿¬Áß ³»³» ÁöõÀ» ÅëÇÏ¿© À¯ÀԵǴ ¿À¿°¹°Áú¿¡ ÀÇÇØ¼­ Á¿ìµÇ¾ú´Ù. ÃÑ À¯±â¹° ºÎÇÏ·®¿¡ ´ëÇÏ¿© ½Ä¹°ÇöûũſÀÇ 1Â÷»ý»êÀÌ Â÷ÁöÇÏ´Â ±â¿©µµ´Â 40.9%·Î¼­, À¯¼ö »ýŰè·Î¼­´Â ³ôÀº ¼öÁØÀ̾ú´Ù.
The downstream reach of the Han River adjoining Seoul in Korea was the upper boundary of an estuary where tidal effect on the flow rate could be exerted. According to the comprehensive river regulation project, the river was channelize dand impounded by two overflow dams, which provided favorable condition for algal growth in this sewage polluted eutrophic reach. In this study primary productivity of phytoplankton was measured in the down reach and the autochthonous and allochthonous organic carbon loadings were estimated. Primary production of phytoplankton measured by C-14 uptake and P-I model method ranged from 140 to $4,890;mgC;m^{-2};d^{-1}$ (median value $1,865;mgC;m^{-2};d^{-1}$) showing the level of eutrophic lakes. Phytoplankton density that varied according to water flow rate was highest in spring. Allochthonous organic carbon loading was dominated by sewage input through tributaries in most of days except flood flow period. The average proportion of autochthonous carbon generation by phytoplankton was 40.9%, which is very high proportion for a lotic habitat.
 
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Primary production;Phytoplankton;Autochthonous organic carbon;Eutrophic river;Han River;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.4, 2001³â, pp.267-276
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317178624)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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