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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.26, no.4, 2008³â, pp.311-322
µµ½ÉÇÏõ »ýŰ迡¼­ÀÇ ¼öÁú ¹× »ýŰǰ­¼º Æò°¡
( Water Quality and Ecosystem Health Assessments in Urban Stream Ecosystems )
±èÇö¸Æ;ÀÌÀçÈÆ;¾È±¤±¹; Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â 2006$sim$2007³â µ¿¾È µµ½ÉÇÏõÀÎ ¹Ìȣõ°ú °©ÃµÀÇ ÀÌÈ­ÇÐÀû ¼öÁú ¹× ¼­½ÄÁö Ư¼ºÀ» ºÐ¼®ÇÏ¿´°í, ¶ÇÇÑ ¾îÁ¾ ºÐÆ÷ ¹× ±æµåºÐ¼®À» ÅëÇØ ±ºÁý±¸Á¶ ¹× »ýŰǰ­µµ Ư¼ºÀ» ºñ±³ Æò°¡ÇÏ¿´´Ù. ÀüÇüÀûÀÎ µÎ µµ½ÉÇÏõÀÇ BOD, COD³óµµ´Â °¢°¢ Æò±Õ 3.5 mg L$^{-1}$, 5.7 mg L$^{-1}$¿´°í, ÃÑÁú¼Ò(TN)¹× ÃÑÀÎ(TP)ÀÇ ³óµµ´Â °¢°¢ 5.1 mg L$^{-1}$, 274 ${mu}g$ L$^{-1}$·Î¼­ ÀÌ¹Ì ºÎ¿µ¾ç »óÅ·ΠÆÇÁ¤µÇ¾úÀ¸¸ç, ƯÈ÷ °©ÃµÇÏ·ù ÁöÁ¡¿¡¼­´Â À¯±â¹° ¿À¿° ¹× ºÎ¿µ¾çÈ­ Çö»óÀÌ ¶Ñ·ÇÇß´Ù. µÎ µµ½ÉÇÏõ¿¡¼­ ÃÑ Á¾¼ö´Â 34Á¾À¸·Î¼­ µ¿ÀÏÇÏ°Ô ³ªÅ¸³µ°í, ³»¼ºÁ¾ ¹× Àâ½ÄÁ¾ÀÎ ÇǶó¹Ì(Zacco platypus)´Â °¡Àå ³ôÀº »ó´ë dzºÎµµ(32$sim$42%)¸¦ º¸¿´´Ù. µÎÇÏõ¿¡¼­ ¹Î°¨Á¾ÀÇ ºñÀ²(23%)Àº ³·Àº ¹Ý¸é ³»¼ºÁ¾°ú Àâ½ÄÁ¾ÀÇ ºñÀ²(45%, 52%)Àº ³ô°Ô ³ªÅ¸³ª µµ½ÉÇÏõ¿¡¼­ÀÇ ÀüÇüÀûÀÎ ±æµå º¯È­ Çö»óÀÌ È®¿¬È÷ ³ªÅ¸³µ´Ù. ÇÏõ»ýŰǰ­µµ Æò°¡(SEHA)¿¡ µû¸£¸é, µÎ ÇÏõ¿¡¼­ ´Ùº¯¼ö ¸ðµ¨°ªÀº °¢°¢ 19,24·Î¼­ ¾çÈ£ÇÏÁö ¸øÇÑ °ÍÀ¸·Î ³ªÅ¸³µ°í, ¼­½ÄÁö Æò°¡ ºÐ¼® (QHEI)¿¡¼­´Â ¹Ìȣõ 123, °©Ãµ 135·Î¼­ º¸Åë$sim$¾çÈ£ »óŸ¦ º¸¿´À¸¸ç, ¼öÁú¿¡¼­ º¸¿©ÁØ ¹Ù¿Í °°ÀÌ ÃÖÇÏ·ù(ƯÈ÷, °©Ãµ)¿¡¼­´Â ±Ø¸íÇÏ°Ô ¾ÇÈ­µÈ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ƯÈ÷ °©Ãµ ÇÏ·ùÀÇ ³·Àº °Ç°­µµ Æò°¡¸ðµ¨°ª(20)Àº ÇϼöÁ¾¸»Ã³¸®ÀåÀ¸·ÎºÎÅÍ ³ª¿Â ¹èÃâ¼öÀÇ È­ÇÐÀû ¿µÇâÀÌ Å« °ÍÀ¸·Î »ç·áµÇ¾ú´Ù. ÀÌ·± ´Ùº¯¼ö ¸ðµ¨ °ªÀº Àü±âÀüµµµµ(r=-0.530, p=0.016), BOD (r=-0.578, p< 0.01), COD (r=-0.603, p< 0.01), ¿µ¾ç¿°·ù(TN, TP: r>0.40, p<0.05)¿Í °°Àº ¼öÁúº¯¼öµé°ú ³ôÀº ¿ª»ó°ü °ü°è¸¦ º¸¿´´Ù. ÀÌ´Â »ýŰǰ­µµ ¸ðµ¨°ªÀÌ ¼öÁú Ư¼ºÀ» Àß ¹Ý¿µÇÏ´Â °´°ü¼º ÀÖ´Â Æò°¡±â¹ýÀ¸·Î Ȱ¿ë µÉ ¼ö ÀÖÀ½À» Á¦½ÃÇÏ¿´´Ù. µû¶ó¼­ ÀÌ·± µµ½ÉÇÏõÀÇ ÇÏ·ùºÎ¿¡¼­´Â »ýÅÂ°è º¸Á¸À» À§ÇØ ÇâÈÄ ÇÏõº¹¿ø ¹× Áö¼ÓÀûÀÎ »ýŸð´ÏÅ͸µ ÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î »ç·áµÇ¾ú´Ù.
The objectives of the study were to analyze chemical water quality and physical habitat characteristics in the urban streams (Miho and Gap streams) along with evaluations of fish community structures and ecosystem health, throughout fish composition and guild analyses during 2006$sim$2007. Concentrations of BOD and COD averaged 3.5 and 5.7 mg L$^{-1}$, in the urban streams, while TN and TP averaged 5.1 mg L$^{-1}$ and 274 ${mu}g$ L$^{-1}$, indicating an eutrophic state. Especially, organic pollution and eutrophication were most intense in the downstream reach of both streams. Total number of fish was 34 species in the both streams, and the most abundant species was Zacco platypus (32$sim$42% of the total). In both streams, the relative abundance of sensitive species was low (23%) and tolerant and omnivores were high (45%, 52%), indicating an typical tolerance and trophic guilds of urban streams in Korea. According to multi-metric models of Stream Ecosystem Health Assessments (SEHA), model values were 19 and 24 in Miho Stream and Gap Stream, respectively. Habitat analysis showed that QHEI (Qulatitative Habitat Evaluation Index) values were 123 and 135 in the two streams, respectively. The minimum values in the SEHA and QHEI were observed in the both downstreams, and this was mainly attributed to chemical pollutions, as shown in the water quality parameters. The model values of SEHA were strongly correlated with conductivity (r=-0.530, p=0.016), BOD (r=-0.578, p< 0.01), COD (r=-0.603, p< 0.01), and nutrients (TN, TP: r>0.40, p<0.05). This model applied in this study seems to be a useful tool, which could reflect the chemical water quality in the urban streams. Overall, this study suggests that consistent ecological monitoring is required in the urban streams for the conservations along with ecological restorations in the degradated downstrems.
 
Ű¿öµå
urban streams;Miho Streams;Gap Streams;SEHA;QHEI;
 
ȯ°æ»ý¹° / v.26, no.4, 2008³â, pp.311-322
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200820258463197)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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