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Çѱ¹»ýÅÂÇÐȸ / v.17, no.3, 1994³â, pp.277-286
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( Cation Deficiencies in Needles and Fine Roots of Pitch Pine in Seoul Metropolitan Area )
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¼öµµ±Ç°ú ±× ÁÖº¯ Áö¿ªÀÇ 33Áö¼ÒÀÇ ¸®±â´Ù¼Ò³ª¹« ½£¿¡¼­ ¸®±â´Ù¼Ò³ª¹« ÀÙ°ú ÀܻѸ®ÀÇ ÁÖ¿äÀÌ¿ÂÀÇ ÇÔ·®À» Á¤·®ÇÏ¿´´Ù. ÀÙ ¼ÓÀÇ N, P, K ¹× Mg ÇÔ·®¿î Àü³âµµ ÀÙ¿¡ ºñÇØ ´çÇØ¿¬µµ ÀÙ¼Ó¿¡ ³ô¾ÒÁö¸¸, Al°ú CaÀº ±× ¹Ý´ë¿´´Ù. ÀÙ ¼ÓÀÇ N, P, K ¹× Al ÇÔ·ªÀº Áö¿ª°£ÀÇ Â÷À̰¡ ¾ø¾úÁö¸¸, Ca°ú Mg ÇÔ·®Àº Àü¿øÁö¿¡ ºñÇØ µµ½ÉÁö¿¡¼­ ³·¾Ò´Ù. ±×·¯³ª ÀÙ¼ÓÀÇ N/Ca¿Í N/MgÀÇ ºñÀÇ °ªÀº Àü¿øÁö¿¡º¸´Ù µµ½ÉÁö¿¡¼­ ÄÇ´Ù. Ç¥Åä ÀܻѸ® ¼ÓÀÇ Mg ÇÔ·®Àº µµ½ÉÀ¸·ÎºÎÅÍ °Å¸®°¡ ¸Ö¾îÁü¿¡ µû¶ó Áõ°¡ÇÏ¿´À¸³ª, ½ÉÃþÅä ÀܻѸ® ¼ÓÀÇ Al ÇÔ·®Àº ±× ¹Ý´ë¿´´Ù. Åä¾çÃþ ÀܻѸ® ¼ÓÀÇAl ÇÔ·®Àº µµ½ÉÁöº¸´Ù Àü¿øÁö¿¡¼­ ³·¾Ò´Ù. Åä¾çÃþ ÀܻѸ®¼ÓÀÇ Al ÇÔ·®Àº ³«¿±ÃþÀÇ ÀܻѸ®¿¡ ºñÇÏ¿© 2~3¹è ³ô¾Ò´Ù. ±×¸®°í Ç¥Å亸´Ù ½ÉÃþÅä¿¡ Á¸ÀçÇÏ´Â ÀܻѸ® ¼Ó¿¡ Al ÇÔ·®ÀÌ ³ô¾Ò´Ù. ±×·¯¹Ç·Î ¼öµµ±Ç Áö¿ª¿¡¼­ ¸®±â´Ù¼Ò³ª¹«ÀÇ »ýÀå°¨¼Ò´Â Á¶Á÷ ¼ÓÀÇ Ca°ú Mg ºÎÁ·, N/Ca°ú N/Mg ºñÀÇÁõ°¡ ¹× ÀܻѸ® »ýÀå¿¡ ´ëÇÑ Al µ¶¼º¿¡ ÀÖ¾ú´Ù. ±×¸®°í ¼öµµ±Ç Áö¿ª¿¡¼­ ÀܻѸ®ÀÇ ºñÁ¤»óÀûÀÎ ºÐÆ÷´Â »ê¼ºÅä¾ç¿¡¼­ Al µ¶¼º¿¡ ÀÇÇÑ ÀܻѸ®ÀÇ »ýÀå°¨¼Ò°¡ ±× ¿øÀÎÀ¸·Î ÇØ¼®µÈ´Ù.
The contents of major elements were determined in current-year and previous-year needles and fine roots of pitch pine (Pinus yzgida) at 33 sites in Seoul and its vicinity. Contrary to Ca and Al in needles, N, P, Mg and K contents in current-year needles were higher than those in previous-year needles. The N, P, K and Al contents in current-year needles in Seoul were not significantly different from those in rural areas. In contrast, Ca and Mg contents in needles in Seoul were significantly lower than those in suburbs and rural areas. The N /Ca and N /Mg ratios in needles in urban Seoul were higher than those in rural areas. Mg contents in fine roots in soil of 0-5 cm depth increased along with distance from the center of Seoul, while Al contents in fine root in soil of 5-10 cm depth decreased along with distance from the center of Seoul. Al contents in fine roots in soil layer in Seoul and suburbs were higher than those in rural areas. Al contents in fine roots in litter layer were 1 /3 - 1 /2 times lower than those in soil layer for all areas. A1 content in fine roots in deep soil was higher than that in top soil. Therefore growth decline of pitch pine in Seoul and suburbs was thought to be caused by Ca and Mg deficiency in plant tissues and Al toxicity to fine roots. Abnormal vertical distribution of fine roots of pitch pine in Seoul and its vicinity were interpreted as the result of growth reduction of fine roots by Al toxicity in deep layer of acid soil.
 
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Al toxicity;Cation deficiencies;Fine root;Needle;N/Mg ratio;Pitch pine;Urban area;
 
The Korean Journal of Ecology / v.17, no.3, 1994³â, pp.277-286
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411919966287)
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