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Çѱ¹»ýÅÂÇÐȸ / v.28, no.6, 2005³â, pp.389-393
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ÀÎÀ§ÀûÀÎ Åä¾ç »ê¼ºÈ°¡ ¼Ò³ª¹« ¹¦¸ñÀÇ »ýÀå¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Growth of Pinus densiflora Seedlings in Artificially Acidified Soils ) |
| ÀÌÃæÈ;À̽¿ì;±èÀº¿µ;±è¿µ°É;º¯Àç°æ;¿øÇü±Ô;ÁøÇö¿À; ±¹¸³»ê¸²°úÇпø »ê¸²È¯°æºÎ;±¹¸³»ê¸²°úÇпø »ê¸²È¯°æºÎ;±¹¸³»ê¸²°úÇпø »ê¸²È¯°æºÎ;±¹¸³»ê¸²°úÇпø »ê¸²È¯°æºÎ;±¹¸³»ê¸²°úÇпø »ê¸²È¯°æºÎ;±¹¸³»ê¸²°úÇпø »ê¸²È¯°æºÎ;°æÈñ´ëÇб³ »ý¸í°úÇкÎ;
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| Ȳ»ê¿ë¾×À» ÷°¡ÇÏ¿© ÀÎÀ§ÀûÀ¸·Î »ê¼ºÈ½ÃŲ Ȱ¾Ï Ç³È ¸ðÀçÀÇ °¥»ö »ê¸² Åä¾ç¿¡ 2-1 ¼Ò³ª¹«(Pinus densiflora) ¹¦¸ñÀ» À̽ÄÇϰí, 1998³â 4¿ù 29ÀϺÎÅÍ 9¿ù 22ÀϱîÁö 21ÁÖ µ¿¾È ¿Â½Ç¿¡¼ »ýÀ°½ÃŲ ÈÄ °Ç¹°»ýÀå·®°ú Åä¾ç pH, Al, Mn ³óµµ ¶Ç´Â ¿°±â¼º ¾çÀ̿ ¸ôºñ »çÀÌÀÇ °ü°è¸¦ Á¶»çÇÑ °á°ú, Åä¾ç³» $H^+$ ºÎÇÏ·®ÀÇ Áõ°¡´Â Åä¾çÁß Al ³óµµÀÇ Áõ°¡¸¦ ÃÊ·¡ÇÏ¿´´Ù. ¼Ò³ª¹« ¹¦¸ñÀÇ °Ç¹° »ýÀå·®Àº Åä¾çÀÇ Al ³óµµ°¡ ³ô¾ÆÁü¿¡ µû¶ó °¨¼ÒÇÏ¿´´Ù. Åä¾çÀÇ (Ca+Mg+K)/Al ¸ôºñ¿Í °Ç¹° »ýÀå·® »çÀÌ¿¡´Â À¯ÀÇÀûÀÎ Á¤ÀÇ »ó°ü°ü°è(r=0.97, p<0.01)°¡ ÀÖ¾úÀ¸¸ç, ¸ôºñ°¡ 1.0ÀÎ °æ¿ì¿¡ ¾à50%ÀÇ °Ç¹° »ýÀå·®ÀÇ °¨¼Ò°¡ ¹ß»ýÇÏ¿´´Ù. À̵éÀÇ °á°ú´Â »ê¼º °ÇϹ°¿¡ ÀÇÇÑ Åä¾ç »ê¼ºÈ°¡ ¼ö¸ñ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÒ ¶§, Åä¾çÀÇ Al°ú °°Àº À¯ÇرݼÓÀÇ º¯È¸¦ °í·ÁÇÒ Çʿ䰡 ÀÖÀ¸¸ç, (Ca+Mg+K)/Al ¸ôºñ´Â »ê¼º °ÇϹ°ÀÇ »ï¸²»ýŰè ÇÇÇØ¿¹ÃøÀ» À§ÇÑ ÇÑ°è ºÎÇÏ·®ÀÇ Æò°¡¿¡ ÀÖ¾î Áß¿äÇÑ ÁöÇ¥°¡ µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| This study was carried out to investigate the effects of soil acidification on the growth of 3-year-old Pinus densiflora seedlings grown for 21 weeks in brown forest soils acidified with $H_2SO_4$ solution. The concentrations of Al in the acidified soils were increased with increasing amount of $H^+$ added to the soil. The total dry weight of the seedlings was reduced by the addition of the $H_2SO_4$ solution. In addition, there was a strong positive correlation (r=0.97, p<0.01) between the dry weight of the seedlings and the molar (Ca+Mg+K)/Al ratio of the soil. The seedlings with the molar (Ca+Mg+K)/Al ratio of 1.0 resulted from approximately 50% growth reduction compared with the control value. The results suggest that the molar (Ca+Mg+K)/Al ratio of the soil may be a useful indicator for assessing the critical load of acid deposition. |
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| Ű¿öµå |
| Dry weight;Molar (Ca+Mg+K)/Al ratio;Pinus densiflora;Soil acidification; |
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The Korean Journal of Ecology / v.28, no.6, 2005³â, pp.389-393
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200509905771081)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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