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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.43, no.3, 2010³â, pp.428-436
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ÅÂȰ ¼ö°èÀÇ ´Ùº¯¼ö ¾î·ùÆò°¡ ¸ðµ¨ ¹× ±ºÁýºÐ¼®¿¡ ÀÇÇÑ ÀÌÈÇÐÀû ¼öÁú Ư¼º ¹× ÇÏõ »ýŰǰµµ Æò°¡
( Characteristics of Physico-chemical Water Quality Characteristics in Taehwa-River Watershed and Stream Ecosystem Health Assessments by a Multimetric Fish Model and Community Analysis ) |
| ±èÀ¯Ç¥;¾È±¤±¹; Ãæ³²´ëÇб³ »ý¸í½Ã½ºÅÛ°úÇдëÇÐ;Ãæ³²´ëÇб³ »ý¸í½Ã½ºÅÛ°úÇдëÇÐ;
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| º» ¿¬±¸´Â ÅÂȰ ¼ö°è 14°³ ÁöÁ¡À» ¼±Á¤Çϰí, 2009³â 5¿ù°ú 9¿ù 2Â÷·Ê Á¶»ç¸¦ ½Ç½ÃÇÏ¿© ÀÌ ÈÇÐÀû ¼öÁú, ¹°¸®Àû ¼½ÄÁö ºÐ¼®À» ÅëÇÏ¿© ¾î·ù ºÐÆ÷Ư¼º ¹× »ýÅ °Ç°µµ¸¦ Áø´ÜÇÏ¿´´Ù. »ý¹°ÅëÇÕÁö¼ö(Index of Biological Integrity, IBI)¸ðµ¨ ºÐ¼®Àº ±¹³» ÇÏõÀÇ Æ¯¼º¿¡ ¸Â°Ô ¼öÁ¤ º¸¿ÏÇÏ¿© 8°³ ´Ùº¯¼ö ¸ÞÆ®¸¯ ¸ðµ¨À» ÀÌ¿ëÇÏ¿´°í, ¹°¸®Àû ¼½ÄÁö Æò°¡ Áö¼ö(Qualitative Habitat Evaluation Index, QHEI)ºÐ¼®Àº 11°³ÀÇ ´Ùº¯¼ö ¸ÞÆ®¸¯ ¸ðµ¨À» Àû¿ëÇÏ¿´´Ù. ÀÌ ÈÇÐÀû ¼öÁú ºÐ¼®Àº ÅÂȰ ¼ö°èÀÇ È¯°æºÎ ¼öÁú ÃøÁ¤¸Á ÀÚ·á Áß 2000³âºÎÅÍ 2009³â±îÁö 10³â°£ÀÇ ÀڷḦ ÀÌ¿ëÇÏ¿© ºÐ¼®ÇÏ¿´´Ù. ÅÂȰÀÇ Áö³ 10³â°£ Æò±Õ BOD °ªÀº $1.7;mg;L^{-1}$·Î¼ Ib(ÁÁÀ½) µî±ÞÀ» º¸¿´°í, $0.1{sim}31.8;mg;L^{-1}$ÀÇ ³ÐÀº º¯ÀÌÆøÀ» º¸¿´´Ù. COD °ªÀº $3.6;mg;L^{-1}$·Î¼ ¿ª½Ã Å« º¯À̸¦ º¸¿´°í($0.4{sim}33;mg;L^{-1}$) TNÀÇ Æò±Õ°ªÀº $2.8;mg;L^{-1}$ (¹üÀ§: $0.1{sim}14.8;mg;L^{-1}$)·Î ³ªÅ¸³µÀ¸¸ç, TPÀÇ Æò±Õ°ªÀº $96.8;{mu}g;L^{-1}$ (¹üÀ§: $0{sim}1675;{mu}g;L^{-1}$)·Î ³ªÅ¸³µ´Ù. ÅÂȰÀÇ ¹°¸®Àû ¼½ÄÁö Æò°¡ Áö¼ö °ªÀº 67.5·Î "º¸Åë»óÅÂ"(C)¿¡¼ 164.5 "¾çÈ£»óÅÂ"(B)ÀÇ ºÐÆ÷¸¦ º¸ÀÌ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º»·ùÀÇ QHEI °ªÀº T9 ÁöÁ¡ ÀÌÈÄ ÇÏ·ù·Î °¥¼ö·Ï ¿ï»ê½ÃÀÇ ¿µÇâÀ¸·Î °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÅÂȰÀÇ 1, 2Â÷ Á¶»ç °á°ú Æò±Õ 26.1(n=14)·Î "¾çÈ£»óÅÂ"(B)·Î ³ªÅ¸³µ´Ù. ÅÂȰ ¼ö°èÀÇ º»·ù´Â ¿ï»ê ½Ã³»¸¦ °üÅëÇÏ¸é¼ Á¡¿À¿°¿ø ¹× ºñÁ¡¿À¿°¿øÀÇ ¿µÇâÀ» ¹Þ¾Æ ÇÏ·ù·Î °¥¼ö·Ï °Ç°¼ºÀÌ ¾ÇȵǴ °æÇâÀ» º¸¿´´Ù. ÅÂȰ ¼ö°èÀÇ IBI, QHEI, ÀÌ ÈÇÐÀû ¼öÁúÀ» »ìÆìº¸¸é ¼½ÄÁöÁú°ú ¼öÁúÀÇ ¾ÇÈ·Î º»·ù´Â ÇÏ·ù·Î °¥¼ö·Ï °Ç°¼º ÀÌ °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| This study was to evaluate water quality characteristics and ecological health using a mulimetric fish model in Taehwa-River watershed during May~September 2009. The ecological health assessments were based on the Index of Biological Integrity (IBI) using fish community and the multimetric model of Qualitative Habitat Evaluation Index (QHEI). For the study, the models of IBI and QHEI were modified as 8 and 11 metric attributes, respectively. We also analyzed spatial patterns of chemical water quality over the period of 2000~2009, using the water chemistry dataset, obtained from the Ministry of Environment, Korea. Values of BOD and COD averaged $1.7;mg;L^{-1}$ (scope: $0.1{sim}31.8;mg;L^{-1}$) and $3.6;mg;L^{-1}$ (scope: $0.4{sim}33;mg;L^{-1}$), respectively during the study. Total nitrogen (TN) and total phosphorus (TP) averaged $2.8;mg;L^{-1}$ and $96.8;{mu}g;L^{-1}$, respectively, indicating an eutrophic-hypertrophic state. Also, TN and TP showed longitudinal increases toward the downriver reach. In the watershed, QHEI values varied from 67.5 (fair condition) to 164.5 (good condition) by the criteria of US EPA (1993). There was a abruptly decreasing tendency from T9 site in the QHEI values. According to 1st and 2nd surveys of Taewha River, multimetric model values of IBI was averaged 26.1 (n=14) with "good" condition (B) and the spatial variation was evident. Our results suggest that the mainstream sites was getting worse health condition along the river gradient due to inputs of the point and non-point sources from the urban (Ulsan city). Overall, dataset of IBI, QHEI, and water chemistry indicated that the ecological river health showed a downriver decline and the pattern was closely associated with habitat degradations and chemical pollutions as the waters pass through the urban region. |
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| Ű¿öµå |
| ecological health;habitat;water quality; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.43, no.3, 2010³â, pp.428-436
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201009654402839)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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