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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.spc, 2008³â, pp.27-34
ÇÏ°è °­¿ì±â Àü.ÈÄ ½Å±¸Àú¼öÁö ³» ÀÔÀÚ¼ºÀ¯±â¹°ÀÇ ¼öÁ÷ºÐÆ÷ ¹× ±â¿ø ¿¬±¸ - ź¼Ò ¹× Áú¼Ò ¾ÈÁ¤µ¿À§¿ø¼ÒºñÀÇ È°¿ë -
( A Study on Vertical Distribution and Origin of Particulate Organic Matter in Shingu Reservoir in Pre-monsoon and Post-monsoon Period - Application of Carbon and Nitrogen Stable Isotope Ratio - )
±è¹Î¼·;ÀÌ¿¬Á¤;½Å°æÈÆ;Ȳ¼øÁø; ÇѾç´ëÇб³ ÇØ¾çȯ°æ°úÇаú;ÇѾç´ëÇб³ ÇØ¾çȯ°æ°úÇаú;ÇѾç´ëÇб³ ÇØ¾çȯ°æ°úÇаú;°Ç±¹´ëÇб³ ȯ°æ°úÇаú;
 
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º» ¿¬±¸´Â ºÎ¿µ¾ç»óÅÂÀÇ ½Å±¸Àú¼öÁö¿¡¼­ °­¿ì±â Àü ÈÄÀÇ ¼öÁú º¯È­¿Í °­¿ì±â À¯ÀÔ¼öÀÇ ¿µÇâÀ» Æò°¡Çϱâ À§ÇØ ÀÌ·ç¾îÁ³´Ù. °­¿ì±â Àü¿¡´Â ¼ö½É¿¡ µû¸¥ ¼ö¿ÂÂ÷°¡ $1^{circ}C$ÀÌÇÏ¿´Áö¸¸ °­¿ì±â ÈÄ¿¡´Â $4^{circ}C$Â÷ ÀÌ»ó±îÁö ¹ú¾îÁ® ¼ö¿Â ¾àÃþÀÌ ¶Ñ·ÇÇÏ°Ô Çü¼ºµÇ¾ú´Ù. ʵµ´Â °­¿ì±â Àüº¸´Ù °­¿ì±â ÈÄ¿¡ Ç¥Ãþ¿¡¼­ 12NTU, ÀúÃþ 120NTU·Î Å©°Ô Áõ°¡ÇÏ¿´´Ù. POCÀÇ ³óµµ´Â °­¿ì±â ÀüÀÇ Á¶»ç¿¡¼­ ¼ö½É¿¡ µû¶ó¼­ $4.96{sim}6.68mg;L^{-1}$ÀÇ ¹üÀ§¸¦ ³ªÅ¸³»°í °­¿ì±â ÈÄÀÇ Á¶»ç¿¡¼­´Â $1.73{sim}5.32mg;L^{-1}$ÀÇ ¹üÀ§¸¦ ³ªÅ¸³»°í ÀÖ¾î ÀüüÀûÀ¸·Î °­¿ì±â Àüº¸´Ù °­¿ì±â ÈÄÀÇ POCÀÇ ³óµµ°¡ ³·¾ÒÀ¸³ª ¼ö½É¿¡ µû¶ó¼­ Å©°Ô Áõ°¡ÇÏ´Â °æÇâÀ» º¸À̰í ÀÖ´Ù. ¶ÇÇÑ, DOCÀÇ ³óµµ´Â °­¿ì±â ÀüÀÇ Á¶»ç¿¡¼­ $3.82{sim}3.96mg;L^{-1}$ÀÇ ¹üÀ§¸¦ ³ªÅ¸³»°í ÀÖ°í, °­¿ì±â ÈÄÀÇ Á¶»ç¿¡¼­ $2.18{sim}2.57mg;L^{-1}$ÀÇ ¹üÀ§¸¦ ³ªÅ¸³»°í ÀÖ¾î ÀüüÀûÀ¸·Î °­¿ì±â Àüº¸´Ù °­¿ì±â ÈÄÀÇ DOC³óµµ´Â °¨¼ÒÇϰí ÀÖ´Ù. ¶ÇÇÑ °­¿ì±â ÈÄ ÀúÃþÀÇ ³ôÀº ʵµÃþ¿¡¼­ °­¿ì±â Àüº¸´Ù ÀÔÀÚ¼ºÀ¯±â¹°ÀÇ C/Nºñ°¡ Å©°Ô Áõ°¡ÇÏ¿´°í ÀÔÀÚ¼º À¯±â¹°ÀÇ ${delta}^{13}C$¿Í ${delta}^{15}C$°ªÀÌ ¶Ñ·ÇÇÏ°Ô °¡º­¿î °ªÀ» º¸ÀÌ´Â °ÍÀ¸·Î º¼ ¶§ Àú¼öÁö ÁÖº¯ À¯¿ª¿¡¼­ À¯ÀÔµÈ À¯±â¹°ÀÇ ¿µÇâÀ» Å©°Ô ¹Þ¾Ò´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù. º» ¿¬±¸ °á°ú·Î º¼ ¶§ ³ó¾÷¿ë Àú¼öÁöÀÎ ½Å±¸Àú¼öÁö´Â ÇÏ°è °­¿ì±â½Ã À¯ÀÔÇÏõÀ» ÅëÇØ ¿ÜºÎ·ÎºÎÅÍ À¯ÀÔµÈ À°»ó½Ä¹° À¯±â¹°ÀÌ ÀúÃþ¿¡ ºÎÀ¯µÈ »óÅ·ΠÁ¸ÀçÇϸç ÀÌ´Â Àú¼öÁö ³» ÀúÃþ ¼ö»ýŰèÀÇ ¿¡³ÊÁö È帧¿¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â °ÍÀ¸·Î »ç·áµÈ´Ù.
The vertical distribution and origin of particulate organic matter (POM) were investigated in Shingu reservoir on 4th July (pre-monsoon) and 7th August (post-monsoon) 2006. High turbid water (120 NTU) were found at 4.5 m water depth in postmonsoon period. The average C/N ratio of POM was about 5.70 and 6.96 in surface water and bottom water, respectively in pre-monsoon period, exhibiting the close values to its ratio in phytoplankton cell. However, the average C/N ratio was 7.10 in surface water and 12.81 in bottom water in post-monsoon period. In addition, the ${delta}^{13}C$ values of POM in pre-monsoon period ranged from -25.1%o to -26.1%o in whole water column, but the ${delta}^{13}C$ values of POM in post-monsoon period showed relatively wide range between -23.2%o and -27.5%o. The apparently lighter values (average -27.5%o) in near bottom water (4.5 m water depth) demonstrate that POM in high turbid water in post-monsoon period may be derived from the outside terrestrial plants through heavy rainfall during the summer monsoon period. The present study suggests that carbon and nitrogen stable isotope ratios as well as C/N ratios should be useful indexes to clarify the origin of POM.
 
Ű¿öµå
carbon and nitrogen isotope;POM;Shingu reservoir;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.spc, 2008³â, pp.27-34
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200814364033962)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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