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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.4, 2003³â, pp.413-419
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( Influence of Rainfall on Cyanobacterial Bloom in Daechung Reservoir ) |
| ¾ÈÄ¡¿ë;±èÈñ½Ä;À±º´´ë;¿ÀÈñ¸ñ; Çѱ¹»ý¸í°øÇבּ¸¿ø ȯ°æ»ý¸í°øÇבּ¸½Ç;Çѱ¹»ý¸í°øÇבּ¸¿ø ȯ°æ»ý¸í°øÇבּ¸½Ç;Çѱ¹»ý¸í°øÇבּ¸¿ø ȯ°æ»ý¸í°øÇבּ¸½Ç;Çѱ¹»ý¸í°øÇבּ¸¿ø ȯ°æ»ý¸í°øÇבּ¸½Ç;
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| 1999³â°ú 2001ÅÏ, ¿©¸§ºÎÅÍ °¡À»±îÁö ´ëûȣÀÇ ³²Á¶·ù ¼öÈÇö»ó¿¡ ´ëÇÑ °¿ì¿µÇâÀ» Á¶»çÇÏ¿´´Ù. µÎ ÇØÀÇ 6,7¿ù °¼ö·®Àº ¸Å¿ì À¯»çÇÏ¿´À¸³ª, ¼öȹ߻ý ½Ã±âÀÎ 8,9¿ùÀÇ °¼ö·®Àº ÇöÀúÇÑ Â÷À̸¦ º¸¿´´Ù. 1999³â¿¡´Â 8¿ù Çϼø ÀÌÈÄ ±×Àü 2°³¿ù¿¡ ºñÇØ ¾à 70%ÀÇ °¼ö·® Áõ°¡°¡ ÀÖ¾úÀ¸³ª, 2001³â¿¡´Â °°Àº ±â°£ µ¿¾È 5ºÐÀÇ 1¼öÁØÀ¸·Î °¨¼ÒÇÏ¿´´Ù. ´õ ³ôÀº ¿±·Ï¼Ò-a, ÆÄÀÌÄڽþƴÑ, ³²Á¶·ù ³óµµ°¡ 2001³â ÃøÁ¤µÇ¾úÀ¸¸ç, À̰ÍÀº ±Ø½ÉÇÑ ¼öÈÀÇ ¹ß»ýÀ¸·Î À̾îÁ³´Ù. ¶ÇÇÑ 2001³â¿¡´Â Á¶»ç±â°£µ¿¾È ³²Á¶·ùÀÇ ºñÀ²ÀÌ Ç×»ó 80%¸¦ »óȸÇÏ¿´À¸¸ç, ³²Á¶·ù´Â Microcystis spp.°¡ ´ëºÎºÐÀ» Â÷ÁöÇÏ¿´´Ù. À̿ʹ ¹Ý´ë·Î 1999³â¿¡´Â ¼öÈÀÇ ¹ß»ýÀÌ º¸°íµÇÁö ¾Ê¾Ò´Ù. ÀÌ·¯ÇÑ Â÷ÀÌ¿¡µµ ºÒ±¸ÇÏ°í ¼öȰ¡ ÀýÁ¤À» ÀÌ·ç´Â ½Ã±â´Â µÎ ÇØ ¸ðµÎ 8¿ù Çϼø¿¡¼ 9¿ù ÃʼøÀ¸·Î, °¼ö·®¿¡ °ü°è¾øÀÌ ÀÏÁ¤ÇÏ¿´´Ù. ¼öÈ ÀÌÀü ½Ã±âÀÇ Àû´çÇÑ °¼ö¿Í ÀÌÈÄÀÇ ÃæºÐÇÑ ÀÏÁ¶ ½Ã±â°¡ ³²Á¶·ùÀÇ ¼öÈ Çü¼º¿¡ ¿µÇâÀ» ³¢Ä¡´Â Áß¿äÀÎÀÚµé ÁßÀÇ Çϳª·Î ÆÇ´ÜµÇ¾ú´Ù. |
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| The water quality and algal communities in the Daechung Reservoir, Korea, were monitored from summer to autumn in 1999 and 2001. Although the average weekly precipitations during June and July were very similar in 1999 and 2001, they were much different during August and September, the so-called blooming season. The rainfall in 1999 increased about 70% after late August, whereas it decreased to the one-fifth level in 2001. The higher concentrations of chlorophyll- a, phycocyanin, and cyanobacteria were observed in 2001, which resulted in the dense algal bloom. In addition, in 2001, the cyanobacterial percentage remained above 80% during the investigation period, and the cyanobacteria were exclusively composed of Microcystis spp. Conversely, there was no report on the algal bloom in 1999. However, the peak bloom seasons were the same for both years, from late August to early September, irrespective of the amount of precipitation. These results suggest that the magnitude and duration of rainfall before bloom season are important factors determining the extent of cyanobacterial bloom in this system. |
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| Ű¿öµå |
| Asian monsoon;bloom;cyanobacteria;Daechung Reservoir;rainfall; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.4, 2003³â, pp.413-419
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200318317182010)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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