|
|
|
Çѱ¹»ýÅÂÇÐȸ / v.29, no.6, 2006³â, pp.559-563
|
¼Ò³ª¹«(Pinus densiflora) ¹¦¸ñÀÇ »ýÀå¿¡ ¹ÌÄ¡´Â ³³°ú CO2ÀÇ ¿µÇâ
( Effects of Pb and CO2 on the Growth of Pinus densiflora Seedlings ) |
| ±è¼ºÇö;È«¼±È;°È£Á¤;·ùÈñ¿í;ÀÌ»óµ·;Á¶°æ¼÷;ÀÌÀμ÷; ÀÌÈ¿©ÀÚ´ëÇб³ »ý¸í°úÇаú;ÀÌÈ¿©ÀÚ´ëÇб³ ȯ°æ°øÇаú;ÀÌÈ¿©ÀÚ´ëÇб³ ȯ°æ°øÇаú;¼þ½Ç´ëÇб³ ȯ°æÈÇаøÇаú;ÀÌÈ¿©ÀÚ´ëÇб³ ȯ°æ°øÇаú;ÀÌÈ¿©ÀÚ´ëÇб³ ȯ°æ°øÇаú;ÀÌÈ¿©ÀÚ´ëÇб³ »ý¸í°úÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸´Â $CO_2$ Áõ°¡¿Í Pb ¿À¿°ÀÌ ¼Ò³ª¹« ¹¦¸ñ¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇÏ¿© Á¶»çÇÏ¿´´Ù. ³³ ¿À¿° Åä¾ç(500 mg/kg-soil)°ú ºñ¿À¿°Åä¾ç¿¡ 2³â»ý ¼Ò³ª¹«¸¦ ½ÄÀçÇÑ ÈÄ, $CO_2$ ³óµµ¸¦ 380 PPM ȤÀº 760 ppmÀ¸·Î Á¶ÀýÇÑ ¹è¾ç±â¿¡¼ 3°³¿ù°£ »ýÀ°½ÃŲ ÈÄ, ¼Ò³ª¹« ¹¦¸ñÀÇ ¼ºÀå, ³³ ÇÔ·® º¯È ¹× Åä¾çÀÇ ¹°¸® ÈÇÐÀû º¯È¸¦ Á¶»çÇÏ¿´´Ù. ¼Ò³ª¹«ÀÇ »ýü·®°ú »Ñ¸® ±æÀÌ´Â$CO_2$ ³óµµ¿¡ µû¶ó À¯ÀÇÀûÀÎ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾ÒÀ¸³ª, ³³¿¡ ÀÇÇÑ ÀúÇØ´Â ¶Ñ·ÇÀÌ ³ªÅ¸³µ´Ù. ³³ ¿À¿° Åä¾ç¿¡¼ Åä¾çÁßÀÇ ³³ ÀÜ·ù¶ûÀº $CO_2$ ³óµµ¿¡ ¿µÇâÀ» ¹ÞÁö ¾Ê¾ÒÀ¸³ª, ¼Ò³ª¹« »Ñ¸®ÁßÀÇ ÃàÀû·®Àº $CO_2$ ³óµµ°¡ ³ôÀ¸¸é 2¹è Á¤µµ ³ô¾Ò´Ù. ÀÌ·¯ÇÑ °á°ú´Â $CO_2$ ³óµµ Áõ°¡°¡ ¼Ò³ª¹« »Ñ¸®ÀÇ Pb »ý¹° À̿뼺¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ» ½Ã»çÇÑ´Ù. |
|
| This work was investigated the effects of the elevated $CO_2$ and Pb contamination on the growth of Pinus densiflora. Two-years pine trees were planted in Pb-contaminated soils (500 mg/kg-soil) and uncontaminated soils, and cultivated for 3 months in the growth chamber where $CO_2$ concentration was controlled at 380 or 760 ppmv. The growth of P. densiflora were comparatively analyzed in 4 kinds of soil samples (CA : $CO_2$ 380 ppmv + Pb 0 mg/kg, CB : $CO_2$ 380 ppmv + Pb 500 mg/kg, EA : $CO_2$ 760 PPmv + Pb 0 mg/kg, EB : $CO_2$ 760 ppmv + Pb 500 mg/kg). It was measured the growth changes of the p. densiflora caused by $CO_2$ concentration and Pb contamination. The growth of P. densiflora was remarkably inhibited in the Pb-contaminated soil, although the biomass and the root elongations were not significantly affected by the elevated $CO_2$. These results suggested that the growth of p. densiflora was sensitively influenced by Pb contamination rather than $CO_2$ concentration. Compared to the initial soil, total Pb concentration in the soil samples was decreased at 760 ppmv $CO_2$ as well as at 380 ppmv $CO_2$ after 3 months. The accumulation of Pb in the roots at 760 ppmv $CO_2$ was two-fold of that at 380 ppmv $CO_2$, indicating that Pb bioavailability in the root of p. densiflora might be affected by the elevated $CO_2$. |
| |
| Ű¿öµå |
| Eelevated $CO_2$;Growth inhibition;Lead;Pinus desiflora; |
| |
|
|
 |
|
Journal of Ecology and Field Biology / v.29, no.6, 2006³â, pp.559-563
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1975-020X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200606142025477)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|