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Çѱ¹»ýÅÂÇÐȸ / v.29, no.6, 2006³â, pp.565-572
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( Early Stage Decomposition of Emergent Macrophytes ) |
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| ÆÈ´çÈ£¿¡¼ ºÐÆ÷ ¸éÀû°ú ºóµµ°¡ °¡Àå Å« ´ëÇü ¼ö»ý ½Ä¹°ÀÎ ÁÙ(Zizania latifolia), °¥´ë(Phragmites communis), ¾Ö±âºÎµé(Typha angustata) 3Á¾ÀÇ ÀÙ°ú ÁÙ±âÀÇ ºÐÇØ ½ÇÇèÀ» ³«¿± ÁÖ¸Ó´Ï ¹ý(litter bag method)À» ÀÌ¿ëÇÏ¿© 2005³â 7¿ù¿¡¼ 12¿ù±îÁö ½ÇÇèÇÏ¿´´Ù. 97Àϰ£ÀÇ ½ÇÇè ±â°£ µ¿¾È ÁÙÀÇ ÀÙ°ú ÁÙ±â´Â °¢°¢ Ãʱ⠰ÇÁß·®ÀÇ 78.8%¿Í 77.4%, °¥´ëÀÇ ÀÙ°ú ÁÙ±â´Â °¢°¢ 67.5%¿Í 43.6%, ¾Ö±âºÎµéÀÇ ÀÙ°ú ÁÙ±â´Â °¢°¢ 55.3%¿Í 61.9% ºÐÇØµÇ¾ú´Ù. ½Ä¹°Ã¼ÀÇ ºÐÇØ·Î ÀÎÇÑ Áß·® °¨¼Ò´Â ³ôÀº Áú¼Ò(N) ÇÔ·®°ú, ³·Àº C/NÀ» º¸ÀÎ Á¾°ú ½Ä¹°Ã¼ ºÎÀ§¿¡¼ ºü¸¥ ºÐÇØÀ²À» ³ªÅ¸³»´Â ¶Ñ·ÇÇÑ »ó°üÀÌ ÀÖ¾ú´Ù. ¹Ý¸é¿¡ ¸®±×´Ñ(lignin)ÀÇ ÇÔ·®ÀÌ ³ô°Å³ª, lignin/N, cellulose/NÀÌ ³ôÀº ½Ä¹° Á¾°ú ºÎÀ§¿¡¼´Â ±× ºÐÇØÀ²ÀÌ ´ÊÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼ö¿Â°ú ¼öÁß ÀÎ(P)ÀÇ ÇÔ·® º¯È¿Í ³«¿± ºÐÇØÀ² »çÀÌ¿¡´Â ¾çÀÇ »ó°üÀ» º¸¿´À¸³ª, $NO_3^-$-N ÇÔ·®°ú´Â À½ÀÇ »ó°üÀ» º¸¿´´Ù. ´õ¿íÀÌ ³«¿±ÁÖ¸Ó´ÏÀÇ ¸Á¸ñÀÇ Å©±â¸¦ ´Þ¸®ÇÑ °¢ ³«¿±ÁÖ¸Ó´Ï¿¡¼ÀÇ ºÐÇØÀ²Àº Â÷À̸¦ ³ªÅ¸³»Áö ¾Ê¾Æ ÀÌµé ½Ä¹°Ã¼ÀÇ ºÐÇØ´Â ´ëºÎºÐ °¦¾Æ¸Ô´Â ¼ö»ý¹Ì¼ÒÀýÁöµ¿¹°¿¡ ÀÇÇÏ¿© ÁøÇàµÇ´Â °ÍÀÌ ¾Æ´Ï¶ó ¼¼±ÕÀ̳ª °õÆÎÀÌ µî°ú °°Àº ¹Ì»ý¹°ÀÇ ÀÛ¿ë¿¡ ÀÇÇÏ¿© ºÐÇØµÇ°í ÀÖ´Â °ÍÀ¸·Î º¸À̸ç, ƯÈ÷ ¼öÁßÀÇ Áú¼Ò¿Í ÀÎ(P)ÀÇ ÇÔ·®Àº ¼ö¿ÂÀÇ º¯È¿Í ÇÔ²² ÀÌµé ¹Ì»ý¹°ÀÇ ¼ÒÀå¿¡ ¿µÇâÀ» ÁÖ´Â ÁÖ¿ä ȯ°æ¿ä¼Ò·Î¼ ¼öÁß ½Ä¹°Ã¼ÀÇ ºÐÇØ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ¿©°ÜÁø´Ù. |
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| This study examined the decomposition of blades and culms of aquatic emergent plant species, Zizania latifolia, Phragmites communis and Typha angustata, which were the most frequent in Lake Paldang. The experiment was carried out from July to December, 2005 in fresh water of lake Paldang using litter bag method. The litter bags had 1.2 mm mesh size and were suspended at 1 m depth of water surface. Remaining mass of blades and culms of each species after 97 days was 21.2% and 22.6% of initial mass in Z. latifolia, 32.5% and 56.4% in P. communis and 44.7% and 38.1 % in T. angustata, respectively. The plant tissue having high N concentration and low C/N exhibited the faster decay rate than the others. However, the tissue of high content of lignin, cellulose, lignin:N, and cullulose:N showed a slow decomposition rate. Water temperature was the most effective environmental factor on the emergent macrophyte litter decomposition in aquatic ecosystems. According to the water temperature, DO, $NO_3^-$-N, and total phosphate concentration were changed in the linear way. The mass loss of plant tissue of emergent macrophytes showed positive relationship with P concentration in water. The experiments on the decomposition of the litter using different mesh sized litter bag did not show significant differences between them. The results suggest that the decomposition of emergent macrophytes in fresh water of lake Paldang, which showed features of lentic and lower part of a stream, was affected by microbial activities better than the micro-invertebrates such as shredders. |
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| Ű¿öµå |
| Decomposition;Emergent macrophytes;Litter quality;Phragmites communis;Typha angustata;Zizania latifolia; |
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Journal of Ecology and Field Biology / v.29, no.6, 2006³â, pp.565-572
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1975-020X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200606142025532)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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