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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.1, 2008³â, pp.1-10
û°èõÀÇ ¼öÁú°ú ºÎÂøÁ¶·ùÀÇ °èÀýÀû º¯µ¿
( Seasonal Variations of Water Quality and Periphyton in the Cheonggyecheon )
½Å¸í¼±;±è¹üö;±èÀ籸;¹Ú¹Ì¼÷;Á¤¼º¹Î;Àåâ¿ø;½ÅÀ±±Ù;¹è¿¬Àç; °­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;°­¿ø´ëÇб³ ȯ°æ°úÇаú;»óÁö´ëÇб³ ȯ°æ°øÇаú;¼­¿ï¿©ÀÚ´ëÇб³ ȯ°æ»ý¸í°úÇкÎ;
 
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û°èõÀÇ Çϵµº¹¿ø»ç¾÷ ÀÌÈÄ ºÎÂøÁ¶·ùÀÇ Áõ½Ä ½ÇÅÂ¿Í ¿µ¾ç¿°·ù ³óµµ µîÀÇ Á¾Àûº¯ÀÌ¿Í °èÀýÀû º¯È­¸¦ Á¶»çÇÏ¿´´Ù. Á¶»ç±â°£Àº º¹±¸µÈ Á÷ÈÄÀÎ 2005³â 12¿ùºÎÅÍ 2007³â 4¿ù±îÁö¿´À¸¸ç, ¿µ¾ç¿°·ù¿Í ºÎÂøÁ¶·ù ÇöÁ¸·®, ¹°¸®Àû ¿äÀÎ µîÀÌ Á¶»çµÇ¾ú´Ù. À¯¼ÓÀº 0.63m $sec^{-1}$¿¡¼­ 1.07m $sec^{-1}$ÀÇ º¯À§¸¦ º¸¿´À¸¸ç, ºÎÂøÁ¶·ùÀÇ ÇöÁ¸·®¿¡ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê´Â °ÍÀ¸·Î °üÂûµÇ¾ú´Ù. ÃÑÁú¼Ò$(2.34{pm}0.45mgN;L^{-1})$´Â °èÀýÀ̳ª ÁöÁ¡¿¡ »ó°ü¾øÀÌ ³óµµÀÇ º¯µ¿ÀÌ ¾ø¾úÀ¸¸ç, ÃÑÀÎ$(10sim90{mu}gP;L^{-1})$Àº Áß¶ûõ ÇÕ·ù Àü ÁöÁ¡ÀÌ °èÀý¿¡ »ó°ü¾øÀÌ °¡Àå ³ôÀº ³óµµ¸¦ ³ªÅ¸³Â°í Áß »ó·ù µÎ ÁöÁ¡Àº °Ü¿ï¿¡, ÇÏ·ù µÎ ÁöÁ¡Àº ¿©¸§¿¡ ³ô¾Ò´Ù. ÃÑÀÎ ³óµµ °¡¿îµ¥ ÀÔÀÚ¼ºÀ¯±âÀÎÀº 60% ÀÌ»óÀ» Â÷ÁöÇÏ¿´À¸¸ç, Áß¶ûõ ÇÕ·ùÀü ÁöÁ¡À» Á¦¿ÜÇÏ°í ¿ëÁ¸¹«±âÀÎ(DIP)Àº 10% À̳»ÀÇ ³·Àº ³óµµ¸¦ ³ªÅ¸³Â´Ù. ºÎÂøÁ¶·ùÀÇ ÇöÁ¸·®Àº $0.3sim48.6{mu}gChl;{alpha}cm^{-2}$ÀÇ ¹üÀ§¸¦ º¸¿´´Âµ¥, À̴ Ÿ ¿¬±¸ º¸°í¿¡ ÀÇÇÏ¸é ¹«Ã´Ãßµ¿¹°ÀÇ »ýü·®À» °¨¼Ò½Ãų ¼ö ÀÖÀ» Á¤µµÀÇ ³ôÀº ¹ÐµµÀÌ´Ù. ºÎÂøÁ¶·ù ±ºÁýÀÇ ¿ìÁ¡Á¾Àº ´ëºÎºÐ ³²Á¶·ù·Î¼­ ºÎ¿µ¾çÇÑ ¼ö¿ª¿¡¼­ ³ªÅ¸³ª´Â Á¾µéÀÌ ÃâÇöÇÏ¿´´Ù. û°èõÀº ºÎÂøÁ¶·ù Á¾Á¶¼º°ú ÇöÁ¸·®À¸·Î º¼ ¶§ ºÎ¿µ¾çÇÑ ÇÏõÀÎ °ÍÀ¸·Î ÆÇÁ¤µÈ´Ù.
The seasonal variations of water quality and periphyton were investigated in an artificial stream (the Cheonggyecheon Stream) flowing through the Seoul City. TP showed a longitudinal gradient: 10 to $59{mu}gP;L^{-1}$ in the upper stream sites, and 15 to $90{mu}gP;L^{-1}$ in downstream sites. POP was a major form of TP in the water, occupying over 60%, while the proportion of DIP was less than 10% except for St. 4. N/P atomic ratio ranged from 78 to 554, which implies phosphorus would limit algal growth more than nitrogen. The biomass of periphyton did not show much difference among sites, and it was relatively higher in spring and fall season $(10sim20{mu}gChl;{alpha}cm^{-2})$ and lower in August $(<5{mu}gChl;{alpha}cm^{-2})$, possibly because biofilms were washed off during spates of summer monsoon. Cyanobacteria was the dominant taxon in the periphyton community throughout the year. The periphyton standing crop can be classified as a nuisance level. It seems that phosphorus level is sufficiently high even though the input water is treated chemically, and modest water velocity $(20sim90cm;sec^{-1})$ and rocky bottom provide optimal conditions for periphyton growth.
 
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Cheonggyecheon;cyanobacteria;periphyton;water quality;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.1, 2008³â, pp.1-10
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200817154059279)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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