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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.3, 2001³â, pp.206-214
µ¿ÇØ¾È ¼®È£ÀÇ À°¼öÇÐÀû Á¶»ç(1): ûÃÊÈ£
( The Limnological Survey of Lagoons in the Eastern Coast of Korea (1): Lake Chungcho )
ÀÌ»ó±Õ;±Ç»ó¿ë;±èµ¿Áø;±è¹üö;Çã¿ì¸í; °­¿ø´ëÇб³ ȯ°æ°úÇаú;»ïô´ëÇб³ ȯ°æ°øÇаú;¿øÁÖÁö¹æÈ¯°æ°ü¸®Ã»;°­¿ø´ëÇб³ ȯ°æ°úÇаú;»ïô´ëÇб³ ȯ°æ°øÇаú;
 
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1998³âºÎÅÍ 2000³â±îÁö °Ü¿ï °áºù±â¸¦ Á¦¿ÜÇÑ Ã»ÃÊÈ£ÀÇ ¼öÁú ¹× ¿µ¾ç»óÅÂÀÇ ÆÇÁ¤°á°ú ºÎ¿µ¾çÈ­°¡ ½É°¢ÇÑ °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. Åõ¸íµµ´Â 0.4${sim}$1.3 m·Î ºñ±³Àû ³·Àº °ªÀ» º¸¿´À¸¸ç, COD³óÆ÷´Â Àü Á¶»çÁöÁ¡¿¡¼­ $3.0{pm}1.0;mgO_2/L$À̾ú´Ù. ¿°ºÐÀº $29.3{pm}5.5;ppt$·Î ¸Å¿ì ³ô¾ÒÀ¸¸ç, ¼ö½É ¾à 0.5${sim}$l.5 m¿¡¼­ ¿°ºÐ¿¡ ÀÇÇÑ È­ÇмºÃþ(chemocline)ÀÌ Çü¼ºµÇ¾î ½ÉÃþ¿¡ »ê¼Ò°ø±ÞÀÌ Á¦ÇѵǾú´Ù. ¶ÇÇÑ Ç¥Ãþº¸´Ù ½ÉÃþ¼öÀÇ ¼ö¿ÂÀÌ ³ôÀº ¼ö¿Â¿ªÀüÇö»óÀÌ °üÂûµÇ±âµµ ÇÏ¿´´Ù. Ç¥Ãþ¼öÀÇ ÃÑÀÎÀº 0.048${sim}$0.253 mgP/L, ÃÑÁú¼Ò´Â 0.9${sim}$2.4 mgN/LÀÇ ¹üÀ§·Î ³ªÅ¸³µÀ¸¸ç, ûÃÊÈ£¿¡¼­ÀÇ TN/TP ºñ´Â ´ëüÀûÀ¸·Î 20 ÀÌÇÏ·Î Áú¼Ò°¡ ¼öÁß »ý¹°ÀÇ ¼ºÀå°ú »ý¼º¿¡ Á¦ÇÑ ¿ä¼Ò·Î ÀÛ¿ëÇÒ¼öµµ ÀÖÀ½À» ½Ã»çÇÏ¿´´Ù. ±×·¯³ª ÀϹÝÀûÀ¸·Î Àΰú Áú¼ÒÀÇ ³óµµ°¡ ³ô°Ô À¯ÁöµÇ¾î ÃÑÁú¼Ò¿Í ÃÑÀÎÀÇ ºñ·Î¼­ Á¦ÇÑ ¿ä¼Ò¸¦ ÆÄ¾ÇÇÏ´Â °ÍÀº ¹«¸®°¡ µû¸£´Â °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. À¯ÀÔ¼ö°¡ À¯ÀԵǴ Á¤Á¡ 1º¸´Ù´Â ÇØ¼öÀÇ ¿µÇâÀÌ ¸¹Àº ¿¬¾ÈÀ¸·Î °¥¼ö·Ï Á¡Â÷ TN/TPºñ°¡ °¨¼ÒÇÏ¿© ÇØ¼öÀÇ ¿µÇâÀÌ Å¬¼ö·Ï ÀÎÇÔ·®¿¡ ´ëÇÑ Áú¼ÒÇÔ·®ºñ°¡ »ó´ëÀûÀ¸·Î °¨¼ÒÇÏ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. Á¶»ç±â°£ ½Ä¹°ÇöûũſÀÇ °æ¿ì´Â ¿¬Áß ³ìÁ¶·ùÀÎ Microspora sp.°¡ ¿ìÁ¡ÇÏ¿´À¸¸ç, ½Ä¹°Çöûũſ¿¡ÀÇÇÑ Chl. a°ªÀº ¸Å³â °¨¼ÒÇÏ´Â ¹Ý¸é ºÎÀ¯¹°ÁúÀÇ ³óµµ´Â Á¡Â÷ Áõ°¡ÇÏ¿© ¹«±âÇöʹ°ÀÇ ºÎÀ¯¹°Áú¿¡ ´ëÇÑ ±â¿©µµ°¡ Á¡Â÷ Áõ°¡Çϰí ÀÖÀ½À» ¾Ë ¼ö ÀÖ´Ù. ûÃÊÈ£ÀÇ ¿±·Ï¼Ò a³óµµ´Â °¢ Á¤Á¡ Æò±Õ $14.0{pm}25.0;mg/m^3$À¸·Î ³ªÅ¸³ª U.S.EPA ±âÁØÀ¸·Î º¼ ¶§ ºÎ¿µ¾çÈ£·Î ºÐ·ùµÇ¸ç, ¿©¸§ ¼ºÀå±â¿±·Ï¼Ò a, Åõ¸íµµ,¹× ÃÑÀÎÀÇ Æò±ÕÄ¡¸¦ ÀÌ¿ëÇÑ ºÎ¿µ¾çÈ­µµÁö¼ö (TSI)µµ Æò±Õ 59${sim}$77·Î ºÎ¿µ¾ç »óÅ·Π³ªÅ¸³µ´Ù.
Water quality and Pollution state of Lake Chungcho were evaluated during three years from 1998 to 2000. We surveyed physicochemical parameters, and TSI (trophic state index) was calculated using TP, Chl. a, and SD (secchi disc transparency) data of growing season average. Water samples were collected bimonthly except freezing season. During the study period, total annual precipitation in 1998, 1999 and 2000 year was 1,797,1,722 and 1,345 mm, respectively. Salinity and conductivity were high($29.3{pm}5.5;ppt$, and $45,105{pm}7,585;{mu}S/cm$) then other lagoons in the Eastern Coast of Korea. Chemocline was formed by salinity at $0.5{sim}1.5;m$ water depth. As a result of this, DO concentration of hypolimnion was below $3.0;mgO_2/L$. Especially, when intense chemocline was formed, temperature of hypolimnion was higher than epilimnion. Secchi disc transparency, chlorophyll a, and COD were $1.8{pm}0.3;m$, $15.7{pm}20.7;mg/m^3$, and $3.1{pm}0.8;mgO_2/L$, respectively. Most of TN/TP ratios below 20, but concentration of TN and TP was high. Values of TSI ranged between 59 and 77, indicating a eutrophic condition in this system.
 
Ű¿öµå
Lagoon;Lake Chungcho;TSI;TN/TP ratio;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.3, 2001³â, pp.206-214
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317177636)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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