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Çѱ¹»ýÅÂÇÐȸ / v.17, no.1, 1994³â, pp.69-78
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»ê¼º°ÇϹ°ÀÌ ÅбêÅÐÀ̳¢(Hypnum plumaeforme)ÀÇ Áú»ê ȯ¿øÈ¿¼Ò¿Í ±¤ÇÕ¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( The Effect of Acidic Deposition on Nitrate Reductase Activity and Photosynthesis of Hypnum plumaeforme ) |
| ÀÌÁ¡¼÷;ÀÓº´¼±;ÀÓÇöºó; ±º»ê´ëÇб³ »ý¹°Çаú;¸ñÆ÷´ëÇб³ »ý¹°Çаú;¸ñÆ÷´ëÇб³ »ý¹°Çаú;
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| 1991³â 3¿ùºÎÅÍ 1993³â 6¿ù±îÁö °ø´Ü, Áذø´Ü ¹× ºñ°ø´ÜÁö¿ª¿¡¼ ºø¹°À» äÃëÇÏ¿© pH¸¦ ÃøÁ¤Çϰí, °ø´Ü°ú ºñ°ø´ÜÁö¿ª¿¡¼ NH4+, NO3-, SO42- ¹× Àü±âÀüµµµµ¸¦ 1³âµ¿¾È ÃøÁ¤ÇÏ¿´´Ù. ¶ÇÇÑ È²»ê°ú Áú»êÀÇ 1:4·Î ÇÏ¿© pH4.6, 3.6 ¹× 2.6À¸·Î Á¶Á¤ÇÑ »ê¼º°ÇϹ°ÀÌ ÅбêÅÐÀ̳¢ÀÇ NRA, ±¤ÇÕ¼º ¹× ¼öºÐÆ÷Åټȿ¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ¿´´Ù. ºø¹°ÀÇ pH´Â ¸ðµÎ À̸¥ º½¿¡ ³·°í ¿©¸§¿¡ ³ô¾ÒÀ¸¸ç °ø´ÜÁö¿ªÀÇ ³·Àº pH´Â ´Ù·®ÀÇ À̿ ƯÈ÷ SO42-¿Í °ü·ÃµÇ¾ú´Ù. ºø¹°ÀÇ SO42-, NO3- ¹× NH4+ÀÇ ¿ù Æò±ÕÀº °ø´ÜÁö¿ª¿¡¼ °¢°¢ 2.94(81.0%), 0.48(13.2%) ¹× 0.21(5.78%)mg/l À̾ú°í, ºñ°ø´ÜÁö¿ª¿¡¼´Â °¢°¢ 0.61(64.21%), 0.25(26.3%) ¹× 0.9(9.5%)mg/l·Î °ø´ÜÁö¿ª¿¡¼ ³ô¾Ò´Ù. °ø´ÜÁö¿ª¿¡¼ »ýÀ°ÇÏ´Â Hypnum plumaeformeÀÇ NRAÀÇ ºñ°ø´ÜÁö¿ª¿¡ ºñÇÏ¿© °ø´ÜÁö¿ªÀÇ °ÍÀÌ ³·¾Ò°í, »ê¼º°ÇϹ°·Î 24ÀÏ µ¿¾È ó¸®ÇÑ NRA¸¦ ÃøÁ¤ÇÑ °á°ú °øÅëÀûÀ¸·Î ¾ïÁ¦µÇ¾ú´Ù. °ø´ÜÁö¿ª°ú ºñ°ø´ÜÁö¿ª¿¡¼ »ýÀ°ÇÑ ½Ä¹°ÀÇ ±¤ÇÕ¼º´ÉÀº »ê¼º°ÇϹ° ó¸®ÈÄ 24Àϸ¸¿¡ pH3.6¿¡¼ °¢°¢ 85¿Í 80%ÀÌ»ó ȸº¹µÇ¾úÀ¸³ª pH2.6¿¡¼´Â 66°ú 56% ȸº¹µÇ¾ú´Ù. °ø´Ü°ú ºñ°ø´ÜÀÇ ½Ä¹°Ã¼ÀÇ ¼öºÐÆ÷ÅÙ¼ÈÀº »ê¼º°ÇϹ°¿¡ ´ëÇÑ ¶Ñ·ÇÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸³ª ´Ü¼öÈÄ ¸ðµÎ Å©°Ô ³·¾ÆÁ³´Ù. |
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| The acidic deposition (wet) was collected at three different locations; representative industrial (Kun-Jang industrial areas), semiindustrial (Kunsan City) and nonindustrial (Daeya areas) region between March, 1991 and June, 1993. Samples were analyzed for major chemical components along with pH. Also the responses of Hypnum filunzaeforme to the acidic deposition adjusted to pH 4.6, 3.6 and 2.6 with 1:4 molar ratio of nitric to sulfuric acid were investigated. Seasonal variation of pH showed the lowest in early spring and the highest in summer. The annual mean concentrations of $S0_4^{2-},;NO_3^{-};and;NH_4^{+}$ were 2.94 (81.0%), 0.48 (13.2%) and 0.21 (5.78%) mg/l in industrial region and 0.61 (64.21%), 0.25 (26.3%) and 0.9 (9.5%) mg /I in nonindustrial region, respectively. $S0_4^{2-}$ contents of industrial region was 4 times higher than those of nonindustrial region. The ratio of $S0_4^{2-};to;NO_3^{-}$ was 4.75~7.35 in industrial region and 0.69-6.36 in nonindustrial region. The acidic deposition near industrial region was associated with excess ions, expecially $S0_4^{2-}$. Nitrate reductase activity(NRA) of mosses was inhibited by acidic deposition in both regions. The time required for the maximum NRA induction by 2mM $KNO_3$ was shortened in mosses collected from industrial region. Photosynthesis of H. plumaejorme began to decrease with acidic deposition by pH below 4.6, and was completely inhibited at pH 2.6 in both regions. Water potential of mosses treated with acidic deposition was almost constant during 18 days, however after withholding the supply of acidic deposition, it was rapidly decreased. |
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| Ű¿öµå |
| Acidic deposion;Industrial and nonindustrial region;Hypnum plumaeforme;Nitrate reductase activity;Photosynthesis;Water potential; |
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The Korean Journal of Ecology / v.17, no.1, 1994³â, pp.69-78
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411919966115)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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