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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.43, no.2, 2010³â, pp.242-254
¾î·ù»ó Æò°¡¸¦ Ȱ¿ëÇÑ ÇÏõ »ýŰèÀÇ ±³¶õ ¹× ȸº¹ À¯Çü °íÂû
( A Study on the Disturbance and the Rehabilitation of Stream by Using Evaluation of Ichthyofauna to Disturbed Ecosystem )
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ÀÎÀ§Àû ¿äÀο¡ ÀÇÇØ Ư¼ºÀÌ ¹Ù²ï ÇÏõÀº Àηù¿¡°Ô ÁÁÀº ±â´ÉÀ» Á¦°øÇϱ⵵ Çϳª ¿ª±â´ÉÀ» Áֱ⵵ ÇÑ´Ù. ¿ª±â´ÉÀº ÁÖ·Î ±³¶õÀ¸·Î¼­ ±³¶õÀÌ ³ªÅ¸³ª¸é ÇÏõÀÇ ±¸Á¶ ¹× ±â´É »ó½ÇÀº ½Ã°£ÀÇ °æ°ú¿¡ µû¶ó ½ÉÈ­µÈ´Ù. µû¶ó¼­ ÀÌ ¾Ç¼øÈ¯À» ²÷±â À§ÇÏ¿© ÇöȲ¿¡ ´ëÃ¥ ¸¶·ÃÀÌ ¹Ù¶÷Á÷ÇÏ´Ù. ³«µ¿°­¿¡¼­ ÇÏõ±³¶õÀÌ ÀÌ·ç¾îÁø 3°³ ±¸°£ ¹× ´ëÁ¶±¸°£¿¡¼­ 3³â°£ ¾î·ù»óÀ» Ȱ¿ëÇÏ¿© ÇÏõ»ýŸ¦ Æò°¡ÇÏ¿´´Ù. 2007³âºÎÅÍ 2009³â±îÁö ³«µ¿°­ÀÇ 6°³ Á¶»çÁöÁ¡¿¡¼­ ³ªÅ¸³­ ¾î·ù»óÀº 3¸ñ 10°ú 41Á¾À̾ú´Ù. È®ÀÎµÈ ¾îÁ¾ Áß Çѱ¹°íÀ¯Á¾Àº 14Á¾ (34.1%), ¿Ü·¡¾îÁ¾Àº 3Á¾ (7.3%)À̾ú´Ù. ÇÏõ »ýÅÂÆò°¡ ½Ã ÃâÇö Á¾ ¼ö, ±ºÁýºÐ¼®, »ýÅÂ°è ±¸Á¶ ¹× ¼­½Äó ´Ù¾ç¼ºÀ» Àû¿ëÇÏ¿´´Ù. 6°³ ÁöÁ¡ÀÇ 3³â Á¾ÇÕ ÀÚ·á Æò°¡¸¦ º¸¸é ¾Èµ¿´ï ÇÏ·ù, ³»¼ºÃµ ¼ö°è¿¡¼­´Â ÃâÇö¾îÁ¾ÀÇ ¼öÀû ºÒ¾ÈÀü¼ºÀ» ³ªÅ¸³½ ¹Ý¸é °¨ÃµÀº ¾Èµ¿´ï ¼ö°èº¸´Ù ÃâÇöÁ¾ÀÇ ´Ù¾ç¼ºÀÌ ³ªÅ¸³ª°í ÀÖ¾ú´Ù. ¾Èµ¿´ï ÇÏ·ù, ³»¼ºÃµ, ±×¸®°í °¨ÃµÀ» Æ÷ÇÔÇÏ´Â ¸ð·¡ÇÏõÀº ÀÓÇÏ´ï ÇÏ·ù ¹× ±æ¾ÈõÀ» Æ÷ÇÔÇÏ´Â ÀÚ°¥ÇÏõº¸´Ù »ý¹° ´Ù¾ç¼º°ú ¼­½Äó ´Ù¾ç¼ºÀÌ ¿ì¼öÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Streams changed by artificial factor those support positive functions but also negative function to humanbeing. Time and pathway exceed the lost of structure and negative function appearing as disturbance. Therefore, it is desirable to prepare right situation to break of a vicious circle. Stream ecology was evaluated with using ichthyofauna during three years at the three disturbed sites and reference sites in Nakdong River. Forty-one species belonging three orders and ten families were identified in six surveying sites of Nakdong River during 2007~2009. Korean endemic species (14 species, 34.1%) and alien (3 species, 7.3%) were identified in Nakdong River ichthyofauna. Species number, species diversity, ecosystem structure and habitat variability of ecosystem were applied to evaluate stream ecosystem. In view of three year comprehended data at six sites; numeric instability appeared Andong Dam and Naeseongcheon sites worse than Gamcheon and reference site, otherwise more numeric diversity appeared Gamcheon and reference site than Andong Dam and Naeseongcheon. As a result of integration, sand stream including downstream of Andong dam, Naeseongcheon and Gamcheon has been having more diversified biodiversity and habitat diversity than those in the pebble stream.
 
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ecosystem of stream;ichthyofauna;evaluation to disturbed ecosystem;disturbance and rehabilitation;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.43, no.2, 2010³â, pp.242-254
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201030853091275)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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