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  Àΰø»ê¼º¿ì¿Í ¹¦¸ñÀÇ »ýÀå Effects of Simulated Acid Rain on the Growth Seedlings
  ±Û¾´ÀÌ : °ü¸®ÀÚ     ³¯Â¥ : 08-04-14 11:40     Á¶È¸ : 9826    
Àΰø»ê¼º¿ì°¡ À㳪¹« ¹¦¸ñÀÇ »ýÀå, ¿µ¾ç»óÅ ¹× Åä¾ç»ê¼ºÈ­¿¡ ¹ÌÄ¡´Â ¿µÇâ Effects of Simulated Acid Rain on the Growth, Nutrient Status of Korean Pine(Pinus koraiensis) Seedlings and Soil Acidification <Çѱ¹ÀÓÇÐȸÁö 89(3):422-430 Jour. Kor. For. Soc. 89(3):422-430 2000> Senior author Hyun-O Jin (Dept. of Forestry, Kyunghee Univ., Yongin 449-701, Korea)
 
È­°­¾Ï ¸ðÀçÀÇ °¥»ö»ê¸²Åä¾ç¿¡ 3³â»ý À㳪¹« ¹¦¸ñÀ» À̽ÄÇÏ¿© 1999³â 4¿ù 21ÀϺÎÅÍ 11¿ù 17ÀϱîÁö 210ÀÏ°£ pH 5.6(´ëÁ¶±¸), 4.0, 3.0, 2.5 ¹× 2.0ÀÇ Àΰø»ê¼º¿ì¸¦ Á¶Á¦ÇÏ¿© »ìÆ÷ÇÏ¿´´Ù. °á°ú, À㳪¹« ¿ä¸ñÀÇ °¡½ÃÀåÇØ´Â pH 2.5 ¹× pH 2.0 󸮱¸¿¡¼­ °üÂûµÇ¾ú´Ù. ÀÙ°ú »Ñ¸® ±×¸®°í °³Ã¼ °ÇÁß·®Àº ´ëÁ¶±¸¿¡ ºñÇØ pH 2.0 󸮱¸¿¡¼­ À¯ÀÇÀûÀ¸·Î °¨¼ÒÇÏ¿´À¸¸ç, T/Rºñ´Â Ÿ 󸮱¸¿¡ ºñÇØ pH 2.0 󸮱¸¿¡¼­ ÇöÀúÈ÷ Áõ°¡ÇÏ¿´´Ù. À㳪¹« ¹¦¸ñÀÇ °¢ ±â°ü³» ¿ø¼Ò¼ººÐÀ» ºÐ¼®ÇÑ °á°ú, ÀÙÀÇ Ca, P ³óµµ ¹× chlorophyll ÇÔ·®Àº ´ëÁ¶±¸¿¡ ºñÇØ pH 2.0 󸮱¸¿¡¼­ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´À¸¸ç, N ³óµµ´Â ¸ðµç ±â°ü¿¡ À־ 󸮱¸ pH°¡ °¨¼ÒÇÔ¿¡ µû¶ó Áõ°¡ÇÏ¿´´Ù. À㳪¹« ¹¦¸ñÀ» À°¼ºÇÑ Åä¾çÀ» ºÐ¼®ÇÑ °á°ú, 󸮱¸ÀÇ pH°¡ °¨¼ÒÇÔ¿¡ µû¶ó Åä¾ç pH°¡ ÀúÇϵǰí Ca, Mg, Al ¹× Mn ³óµµ°¡ Áõ°¡ÇÏ¿´´Âµ¥, ƯÈ÷ Åä¾ç pH 4.4 ÀüÈÄ¿¡¼­ ±Þ°ÝÇÑ Áõ°¡¸¦ º¸¿´´Ù. ÇÑÆí, À㳪¹« ¹¦¸ñÀÇ °³Ã¼°ÇÁß·®°ú Åä¾çÀÇ pH ¹× Al ³óµµ¿ÍÀÇ »çÀÌ¿¡ °¢°¢ ³ôÀº »ó°ü(r=0.90, p<0.05; r=-0.94, p<0.01)ÀÌ ÀÎÁ¤µÇ¾ú´Ù. ÀÌ °á°ú´Â Åä¾çÀÇ pH ¹× Al ³óµµ´Â »ê¸²¼öÁ¾ÀÇ »ýÀå¿¡ ¹ÌÄ¡´Â »ê¼º¿ìÀÇ ¿µÇâÆò°¡¿¡ ÀÖ¾î Áß¿äÇÑ ÁöÇ¥°¡ µÉ °ÍÀ¸·Î »ç·áµÈ´Ù.
Three-rear-old Pinus koraiensis seedlings, transplanted in brown forest soils originating from granite were treated with simulated acid rain of pH concentrations 5.6(control), 4.0, 3,0, 2.5 and 2.0 for 210 days from April 21 to November 17, 1999. Visible injury of the seedlings were observed at the pH 2.0 and pH 2.5 treatments. The total dry weight of the seedlings decreased at pH 2.0 treatment compared with that of the control, and T/R ratio increased at pH 2.0 treatment compared with others. The elements in each part of the seedlings, concentrations of Ca, P and content of chlorophyll in needles increased at the pH 2.0 treatment compared with the control. The concentration of N in the needles of the seedlings increased as the soil pH decreased. As the treated pH was lowered, soil pH has decreased, and concentrations of Ca, Mg, Al, and Mn increased, especially at pH 4.4. In addition, there was a strong correlation(r=0.90, p<0.05; r=-0.94, p<0.01) between the dry weight of the seedlings and the pH and Al concentration of the soils. Therefore, the pH and Al concentration in the soil may be useful indicator for assessing the effect of acid rain on the growth of woody plants.
Key words: simulated acid rain, Pinus koraiensis seedlings, dry weight, nutrient status, soil acidification

   

 
   

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