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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.35, no.3, 2002³â, pp.172-180
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³«µ¿° ÇÏ·ù¿¡¼ ¼ö¼¹«Ã´Ãßµ¿¹°¿¡ ÀÇÇÑ Á¤¼ö½Ä¹°ÀÇ ³«¿±ºÐÇØ
( Leaf Litter Breakdown of Emergent Macrophytes by Aquatic Invertebrates in the Lower Nakdong River ) |
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| Å« °ÀÇ ÇÏ·ù¿¡¼ ¿ìÁ¡ÇÏ´Â Á¤¼ö½Ä¹°ÀÇ ºÐÇØ ±âÀÛÀ» ¾Ë±â À§ÇÏ¿© 1998³â 11¿ùºÎÅÍ 1999³â 9¿ù±îÁö ³«µ¿°ÇÏ·ùÀÇ ¼öº¯¿¡ ºÐÆ÷ÇÏ´Â Á¤¼ö½Ä¹° Áß ¿ìÁ¡Á¾ÀÎ °¥´ë¿ÍÁØ¿ìÁ¡Á¾ÀÎ ÁÙ ¹× ¾Ö±âºÎµéÀÇ ³«¿±ºÐÇØ¼Óµµ(°³¹æ¸Á°ú Æó¼â¸Á, ºÎÀ¯Ãþ°ú ħ¼öÃþ)¸¦ ºñ±³ÇÏ°í£¬¡¡¼ö¼ ¹«Ã´Ãßµ¿¹°ÀÇ ³«¿±ºÐÇØ ±â¿©µµ¸¦ Á¶»çÇÏ¿´´Ù. ³«¿±ÁÖ¸Ó´Ï¿¡¼ äÁýµÈ ¼ö¼ ¹«Ã´Ãßµ¿¹°Àº 11°ú 11Á¾À̾úÀ¸¸ç Æò±Õ ¹Ðµµ´Â $222;ind./m^2$ (n= 792)¿´´Ù. ¿ìÁ¡Á¾Àº Æò±Õ ¹ÐµµÀÇ ¾à 68% ÀÌ»óÀ» Â÷ÁöÇÏ´Â ÆÄ¸®¸ñ ±òµû±¸°úÀÇ Chironomus sp.(±òµû±¸¼Ó)·Î ¼öÁý-¸ðÀ¸´Â ±â´É±º(collector-gather)ÀÌ¡¡¿ìÁ¡ÇÏ¿´´Ù. ¼ö¼ ¹«Ã´Ãßµ¿¹°ÀÇ ¼½Ä ¹Ðµµ´Â °³¹æ¸Áº¸´Ù¡¡Æó¼â¸Á¿¡¼ ³ô°Ô ³ªÅ¸³µÀ¸¸ç ºÎÀ¯Ãþ°ú ħ¼öÃþ¿¡¼´Â Å«Â÷À̰¡ ¾ø¾ú´Ù£®¡¡³«¿±ÁÖ¸Ó´Ï ³» ±òµû±¸°úÀÇ Æò±Õ ¹Ðµµ´Â ÁÙ($180;ind./m^2$, n= 264), ¾Ö±âºÎµé($187;ind./m^2$, n= 264), °¥´ë ($95;ind./m^2$, n= 264) ¼øÀ̾ú°í ºÎÀ¯Ãþº¸´Ù ħ¼öÃþ¿¡¼, °³¹æ¸Áº¸´Ù Æó¼â¸Á¿¡¼ ´Ù¼Ò ¸¹ÀÌ ÃâÇöÇÏ¿´´Ù. 50%ºÐÇØ¿¡ ¼Ò¿äµÇ´Â ±â°£Àº ÁÙÀÌ °¡Àå ª°í ´ÙÀ½Àº ¾Ö±âºÎµé ±×¸®°í °¥´ë ¼øÀ¸·Î ³ªÅ¸³µ´Ù. ½ÇÇè°á°ú ºÐÇØÀ²Àº ÁÙÀÌ °¡Àå ³ô¾ÒÀ¸¸ç, ¾Ö±âºÎµéÀÌ °¥´ëº¸´Ù Á¶±Ý ´õ »¡¸®¡¡ºÐÇØµÇ¾ú´Ù. ±×¸®°í 3Á¾ÀÇ ³«¿± ¸ðµÎ ºÐÇØÀ²ÀÌ Ä§¼öÃþ¿¡¼º¸´Ù ºÎÀ¯Ãþ¿¡¼ ´õ ºü¸£°Ô ºÐÇØµÇ¾ú´Ù. °³¹æ¸Á°ú Æó¼â¸Á¿¡¼´Â ºÐÇØÀ²ÀÇ Â÷À̰¡ ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. |
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| Leaf litter breakdown rates of the Phragmites australis, Zizania latifolia and Typha angustifolia were determined at the lower Nakdong River from Nov. 1998 to Sept. 1999. The relationship between leaf litter breakdown of three and abundance of aquatic invertebrates was investigated. Aquatic invertebrates collected in the litterbags were 11 family, 11 species (mean density: $222;ind./m^2$ , n = 792), and Chironomidae was dominant. Mean density of Chironomidae in the litterbags were different according to the aquatic plant species: Z. latifolia ($180;ind./m^2$, n = 264) T. angustifolia ($187;ind./m^2$, n = 264) P. australis ($95;ind./m^2$, n = 264). The breakdown of Z. latifolia was the shortest, and that of T. angustifolia was shorter than P. australis. Overall, the breakdown rate at floating layer was faster than that of submerged layer in all of three species and differences of the breakdown rate between open bags and closed three species and differences of the breakdown rate between open bags and closed bags were not found. |
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| Ű¿öµå |
| breakdown rate;aquatic invertebrates;Phragmites australis;Zizania latifolia;Typha angustifolia;Chironomidae; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.35, no.3, 2002³â, pp.172-180
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200218317179830)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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