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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.38, no.2, 2005³â, pp.160-180
±¹³» ¿¬¾È Çϱ¸¿ªÀÇ ½Ä¹°Çöûũſ »ýü·® (chlorophyll a) ¹× ¼öÁú µ¿Çâ
( Trends of Phytoplankton Community and Water Quality and Implications for Management in Estuarine River Systems )
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ÀÏÂ÷»ý»êÀÚÀÎ ½Ä¹°ÇöûũſÀÇ »ýü·® (Ŭ·Î·Î¸± a)°ú ¼öÁúÀÇ Àå±âÀû ÀÚ·á (ȯ°æºÎ¼öÁúÃøÁ¤¸Á)¸¦ ºÐ¼®ÇÏ¿© ±¹³» Çϱ¸¿ª (¼¶Áø°­, ÇѰ­, ¾Æ»êÈ£ (¸¸), ¿µ»ê°­, ±Ý°­, ³«µ¿°­)ÀÇ ÀÏÂ÷»ý»êÀÚ¿Í ¼öÁúÀÇ Ãß¼¼ (trend)¿¡ ´ëÇÏ¿© Á¶»çÇÏ¿´´Ù. ½Ä¹°ÇöûũſÀÇ »ýü·®°ú ¼öÁú¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ȯ°æÀÎÀڵ鿡 ´ëÇÑ ¹®ÇåÀ̳ª º¸°í¼­ °ËÅäµµ ÀÌ·ç¾îÁ³´Ù. ±¹³»¿¡¼­ Çϱ¸¾ðÀÌ ¾ø´Â À¯ÀÏÇÑ Çϱ¸ÀÎ ¼¶Áø°­Àº ´Ù¸¥ ÀüÇüÀûÀÎ Çϱ¸¿Í À¯»çÇÑ Æ¯¼ºÀ» ³ªÅ¸³»¾ú´Ù. ½Ä¹°ÇöûũſÀÇ »ýü·®Àº °­ »ó·ùÁö¿ªÀ¸·ÎÀÇ ´ã¼öÀ¯ÀÔÀÌ ¸¹Àº ¿©¸§ÀÌ Áö³­ °¡À»Ã¶¿¡ Áß¿°Áö¿ª (5 ${sim}$ 15 psu)¿¡¼­ ³ô¾Ò°í Áú»ê°ú ±Ô»ê¿°Àº °­ ¹èÃâ·® (´ã¼öÀ¯ÀÔ)ÀÌ ¸¹À»¼ö·Ï ³ô¾ÆÁö´Â ÇüŸ¦ ¶ì¾ú´Ù. ÇѰ­¿¡¼­´Â ½Ä¹°Çöûũſ »ýü·®°ú ¿µ¾ç¿°ÀÇ ³óµµ°¡ ÇÏ·ùÁö¿ª¿¡¼­ ³ô¾Ò´Ù. °èÀýÀûÀ¸·Î´Â º½Ã¶¿¡ ³ôÀº ³óµµ¸¦ º¸¿´´Âµ¥ ÀÌ¿¡ ¹ÝÇØ ¿µ»ê°­Àº º½Ã¶¿¡ »ó·ùÁö¿ª¿¡¼­ ½Ä¹°Çöûũſ »ýü·®°ú ¿µ¾ç¿° ³óµµ°¡ ³ô°Ô ³ªÅ¸³µ´Ù. ¾Æ»êÈ£ÀÇ ½Ä¹°Çöûũſ »ýü·®Àº º» ¿¬±¸ÀÇ Á¶»ç Çϱ¸¿ªÁß¿¡¼­ °¡Àå ³ôÀº °ªÀ» º¸¿´°í ´ëºÎºÐÀÇ ¿µ¾ç¿°ÀÌ »ó·ùÂÊ¿¡¼­ ³ô°Ô ³ªÅ¸³µ´Ù. ³«µ¿°­Àº ½Ä¹°ÇöûũſÀÇ »ýü·®ÀÌ °Ü¿ïö¿¡ ³ô¾Ò°í ÇÏ·ùº¸´Ù »ó·ùÁö¿ª¿¡¼­ ¾à°£ ³ô°Ô ³ªÅ¸³µ´Ù. ±¹³» Çϱ¸¿ªÀÇ ¼öÁú¿¡¼­´Â ÃÑÁú¼Ò¿Í ÃÑÀÎÀÌ ´ëºÎºÐ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù. º» ¿¬±¸ °á°úµéÀÌ Çϱ¸¿ªÀÇ ¼öÁú°ü¸® Ãø¸é¿¡¼­ ³»Æ÷ÇÏ´Â Àǹ̿¡ ´ëÇØ¼­µµ ¾ð±ÞÇÏ¿´´Ù.
Long-term data (Ministry of Environment Water Quality Monitoring data) of phytoplankton biomass (chlorophyll a) and water quality were analyzed to investigate trends in biomass of the primary producers and water quality for the estuarine systems in Korea: Sumjin River, Han River, Asan Lake- Bay, Youngsan River, Keum River and Nakdong River. The literatures were also reviewed to examine the characteristics of phytoplankton biomass and water quality in the estuarine systems. The Sumjin River estuary, the single estuary without a dike in Korea showed the characteristics similar to other typical estuarine systems. Phytoplankton biomass was high during the fall at transitional regions (5 ${sim}$ 15 psu) after riverine freshwater inputs were increased in summer. Concentrations of the nitrate and silicate were increased with the high river discharge rates. Phytoplankton biomass and nutrient concentrations were high during spring at the lower regions in the Han River whereas phytoplankton biomass and nutrient concentrations were high during spring at the upper regions in the Youngsan River. Phytoplankton biomass was the highest in the Asan Lake and nutrient concentrations were high at the upper region of the lake. In Nakdong River, phytoplankton biomass was high during winter and the biomass was slightly higher at upper region than at lower region. Long-term trends showed that total nitrogen and total phosphorus were mostly increased in the river systems. Implications of these results relevant to the water quality management for the river systems were also discussed.
 
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phytoplankton biomass;water quality;estuarine river;water quality management;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.38, no.2, 2005³â, pp.160-180
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200518317184460)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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