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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.1, 2009³â, pp.9-18
ö»õµµ·¡ÁöÀÎ ÁÖ³²Àú¼öÁöÀÇ °èÀýÀû ¼öÁúº¯µ¿
( Temporal Dynamics of Water Quality in Junam Reservoir, as a Nest of Migratory Birds )
ÀÌÀÇÇà;¾È±¤±¹; Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â ¿ì¸®³ª¶óÀÇ ÁÖ¿äÇÑ Ã¶»õµµ·¡ÁöÀÎ ÁÖ³² Àú¼öÁö¸¦ ´ë»óÀ¸·Î 1998³âºÎÅÍ 2007³â±îÁö 10³â°£ÀÇ °èÀýÀû ¼öÁúƯ¼º ºÐ¼® ¹× ¿¬º°º¯ÀÌ Æ¯¼º, °­¿ìºÐÆ÷¿¡ µû¸¥ ¿µ¾ç¿°·ù(N, P)ÀÇ ºÎÇÏÆ¯¼º ¹× °æÇèÀû ¸ðµ¨(Empirical model)À» ÀÌ¿ëÇÑ ºÎ¿µ¾çÈ­ º¯¼ö °£ÀÇ ¿ªµ¿Àû °ü°è¸¦ ºÐ¼®ÇÏ¿´´Ù. ¼öü³»ÀÇ CODÀÇ Æò±Õ³óµµ´Â $7.8;mg;L^{-1}$À̾ú°í, TN ¹× TPÀÇ ¿µ¾ç¿°·ù ³óµµ´Â °¢°¢ $1.4;mg;L^{-1}$, $83{mu}g;L^{-1}$·Î¼­ ºÎ¿µ¾ç-°ú¿µ¾ç »óÅ·Π³ªÅ¸³µ´Ù. ÁÖ³²Àú¼öÁöÀÇ ¿ùº° COD´Â Àü±âÀüµµµµ(r=0.669, p<0.001)¿Í ³ôÀº »ó°ü°ü°è¸¦ º¸¿© ÇÏÀý±â °­¿ì´Â ÀÌ¿ÂÈñ¼®Çö»óÀ» ¾ß±â½Ã۰í ÀÌ´Â ¼öÁúÇâ»ó¿¡ ±â¿©ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. TN ¹× TPÀÇ One-way ANOVA ºÐ¼® °á°ú¿¡ µû¸£¸é, ö»õ µµ·¡ÀÇ Àü ÈÄ¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ(F=$5.2{sim}12.9$, p<0.05)¸¦ º¸¿´´Ù. Áï, À̴ ö»õ µµ·¡ Àü¿¡ ¿ÀÈ÷·Á ´õ ¿µ¿µ¿°·ù°¡ ³ôÀº °ÍÀ¸·Î ³ªÅ¸³ª ö»õµµ·¡¿¡ ÀÇÇÑ ¿µ¾ç¿°·ùÀÇ Áõ°¡È¿°ú´Â ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ, $NO_{3^-}N$ ¹× $NH_{3^-}$ÀÇ Oneway ANOVA ºÐ¼® °á°ú´Â ö»õ µµ·¡ Àü ÈÄ¿¡ À¯ÀÇÇÑ Â÷ÀÌ(F=$0.37{sim}0.48$, p>0.05)°¡ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ºÎ¿µ¾çÈ­¿¡ °ü°èµÈ º¯¼ö¸¦ ÀÌ¿ëÇÑ °æÇèÀû ¸ðµ¨(Empirical model)ÀÇ 1Â÷ ȸ±ÍºÐ¼® °á°ú¿¡ µû¸£¸é, Á¶·ù»ýü·®Àº(CHL)Àº TN ($R^2$=0.143, p<0.001, n=119) ¹× TP ($R^2$=0.192, p<0.001, n=119)¿Í Åë°èÀûÀ¸·Î À¯ÀÇÇÑ »ó°ü¼ºÀ» º¸¿© CHLÀÇ Áõ°¨¿¡ ¿µ¾ç¿°·ù°¡ ¿µÇâÀ» ¹ÌÄ¡³ª ±× È¿°ú´Â ¹Ì¹ÌÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. À̸¦ À§ÇØ ¿µ¾ç»óÅ Áö¼ö º¯À̼º(Trophic State Index Deviation, TSID) Å×½ºÆ®¿¡ µû¸£¸é, "TSI (CHL)-TSI (SD)" ¹× "TSI (CHL)-TSI (TP)"°ªÀº Àüü °üÃøÄ¡ Áß 70% ÀÌ»óÀÌ À½¼ö°ªÀ¸·Î ³ªÅ¸³ª CHLÀº ¿µ¾ç¿°·ù¿¡ ÀÇÇÑ Á¦ÇѺ¸´Ù´Â ¹«±â¼º ºÎÀ¯¹°(Inorganic solids)¿¡ ÀÇÇÑ ±¤Á¦ÇÑ È¿°ú·Î ³ªÅ¸³µ´Ù.
The objectives of this study were to evaluate seasonal and interannual variations of water quality and nutrient input (N, P) in Junam Reservoir, a nesting waterbody of migratory birds, over 10 years during 1998$sim$2007 along with dynamic relations of trophic parameters using empirical models. Concentrations of COD averaged 7.8 mg $L^{-1}$ during the study, while TN and TP were $1.4;mg;L^{-1}$ and $83{mu}g;L^{-1}$, respectively, indicating an eutrophic-hypereutrophic state. Values of monthly COD had strong positive relations (r=0.669, p<0.001) with conductivity, indicating that summer rainfall resulted in an ionic dilution of the reservoir water by rainwater and contributed better water quality. One-way ANOVA tests showed significant differences (F=$5.2{sim}12.9$, p<0.05) in TN and TP between the before and after the bird migration. In other words, nutrient levels were greater in the absence of migratory birds than in the presence of the migratory birds, suggesting a no-effect on nutrient inputs by the birds. Also, one-way ANOVA indicated no significant differences (F=$0.37{sim}0.48$, p>0.05) in $NO_{3^-}N$ and $NH_{3^-}N$ between the before and after the birds migration. Linear empirical models using trophic parameters showed that algal biomass as CHL, had significant low correlations with TN ($R^2$=0.143, p<0.001, n=119) and TP ($R^2$=0.192, p<0.001, n=119). These results suggest that influences of nutrients on the CHL were evident, but the effect was weak. This fact was supported by analysis of Trophic State Index Deviation (TSID). Over 70% in the observed values of "TSI (CHL)-TSI (SD)" and "TSI (CHL)-TSI (TP)" were less than zero, suggesting a light limitation on the CHL by inorganic suspended solids.
 
Ű¿öµå
water quality;migratory bird;empirical model;Trophic State Index;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.1, 2009³â, pp.9-18
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912651518716)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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