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Çѱ¹»ýÅÂÇÐȸ / v.29, no.3, 2006³â, pp.305-321
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( Atmospheric Acid Deposition : Nitrogen Saturation of Forests ) |
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| ´ë±â »ê¼º °ÇϹ° : »ï¸²ÀÇ Áú¼Ò Æ÷È Çѱ¹ÀÇ ¿¬Æò±Õ ½À¼º Áú¼Ò °ÇÏ·®Àº 12.78(¹üÀ§: $7.28{sim}21.05);kgN{cdot}ha^{-1}{cdot}yr^{-1}$À̰í, À̰Ϳ¡ °Ç¼º Áú¼Ò °ÇÏ·®(43%)À» ÇÕÇÏ¿© ÃßÁ¤ÇÑ ÃÑÁú¼Ò °ÇÏ·®Àº 18.26(10.41-30.10) $kgN{cdot}ha^{-1}{cdot}yr^{-1}$ÀÌ µÈ´Ù. ÀÌ Áú¼Ò °ÇÏ·®Àº À¯·´°ú ºÏ¹Ì ºÏµ¿ºÎÀÇ Áú¼Ò °ÇÏ·®°ú ºñ½ÁÇÑ ¼öÁØÀÌ´Ù. ´ë±â Áú¼Ò °ÇÏ·®ÀÌ ¸¹Àº ¿Â´ë »ï¸²Àº Áú¼Ò·Î Æ÷ȵȴÙ. Áú¼Ò·Î Æ÷ÈµÈ »ï¸²Àº °è·ù¼ö¿Í Åä¾ç¿¡ Áú»êÀ̿ ($NO_3^-$)°ú Áú»êÅÂÁú¼Ò/¾Ï¸ð´½ÅÂÁú¼ÒÀÌ($NO_{3}^{-}-N/NH_{4}^{+}-N$)ÀÇ ºñ°¡ ³ô¾ÆÁö°í, ÀÙÀÇ Áú¼Ò ³óµµ°¡ ³ô¾ÆÁö¹Ç·Î N/Pºñ, N/Kºñ ¹× N/Mg ºñ°¡ ³ô¾ÆÁö´Â °ÍÀ¸·Î º¸¾Æ ¹«±â ¿µ¾ç¼Ò ±³¶õÀÌ ÀϾ¸ç, »óÇØ¿Í º´ÇØ¿¡ °É¸®±â ½¬¿öÁö°í ¼¼±Ù°ú ±Ù±ÕÀÇ È°¼ºÀÌ ³·¾ÆÁüÀ¸·Î½á »ý»ê¼ºÀÌ ³·¾ÆÁø´Ù. ±×·¯°í ÇøÁú¼Ò¼º Á¾ÀÌ È£Áú¼Ò¼º Á¾¿¡ ÀÇÇÏ¿© ´ëÄ¡µÈ´Ù. Áú¼Ò·Î Æ÷ÈµÈ Åä¾ç¿¡¼´Â ¿Â½Ç°¡½ºÀÎ ¸Þź($CH_4$)ÀÇ Èí¼ö°¡ °¨¼ÒµÇ°í ÀÏ»êÈÁú¼Ò (NO)¿Í ¾Æ»êÈÁú¼Ò ($N_{2}O$)ÀÇ ¹èÃâÀÌ Áõ°¡µÇ¾î Áö±¸¿Â³È¸¦ ÃËÁøÇÒ ¼ö ÀÖ´Ù. ÀÌ Á¾¼³Àº Çѱ¹ÀÇ 33Àå¼Ò¿¡¼ 6³â µ¿¾È ($1999{sim}2004$) ÃøÁ¤ÇÑ ºÎÇǰ¡Áß ¿¬Æò±Õ ½À¼º Áú¼Ò °ÇÏ·®ÀÌ »ï¸²ÀÇ Áú¼Ò Æ÷È ¼öÁØ¿¡ ´ÞÇϰí, ±¤¸ª½ÃÇ踲ºÐ¼ö°è¿Í ±× ¹ÛÀÇ »ï¸² °è·ù¼öÀÇ $NO_3$ À¯Ãâ·®À¸·Î ¹Ì·ç¾î º¸¾Æ Çѱ¹ÀÇ »ï¸²¿¡ Áú¼Ò Æ÷ÈÀÇ Â¡Èİ¡ ³ªÅ¸³µÀ½À» Á¦½ÃÇϸç, ¹®Çå ÀڷḦ ÅëÇØ¼ ¿Ü±¹ÀÇ »ï¸²¿¡¼ ÀϾ´Â Áú¼Ò Æ÷ÈÀÇ Â¡Èĸ¦ ü°èÀûÀ¸·Î ³íÇÏ´Â µ¥ ¸ñÀûÀÌ ÀÖ´Ù. °ü¸®Çϱâ À§Çؼ´Â ¼ö¼ú¿¡ ´ëÇÑ ÃæºÐÇÑ »çÀüÁغñ°ú °£È£¾÷¹«¿¡ ´ëÇÑ Àç±³À°ÀÌ Ã¶ÀúÇÏ°Ô ½ÃÇàµÇ°í, °ú·Î¸¦ ¹æÁöÇϸç, ÀÚ³à¾çÀ°¿¡ °üÇÑ ºÎ´ãÀ» µé¾îÁÖ¸é¼ °è¼ÓÀûÀÎ ±³À°ÀÇ ±âȸ¸¦ º¸ÀåÇØ ÁÙ ¼ö ÀÖ´Â ¹æ¾ÈÀÌ ¸¶·ÃµÇ¾î¾ß ÇÑ´Ù.ounts of pollutants into the environment and efforts are underway to deal with these pollution. *´ëÇÑÀ§»ýÇÐȸÀå Regional community are faced with serious environmental problems. For instance, so called# Yellow Sand Storm# from China is one of the case. Recently, to make matter worse, acid rain and dry depositation from transboundary air pollution is tend to increase mainly because of emissions from mainland China. Therefore, the countries concerned in the region, should seek to promote international cooperation on environmental issues. An overall aspects of development and environmental programs in China are presented.£¿£¿å£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿Ú³£¿£¿©ù£¿ï¢òÓ£¿£¿£¿£¿£¿£¿£¿£¿ÙÀؤ£¿âäË⣿£¿£¿£¿£¿£¿£¿üäߤï¢ðÍ£¿£¿éÀ£¿£¿ç±£¿£¿Ú棿êУ¿£¿Õ磿ëÈ£¿£¿ç±£¿£¿Õ»£¿£¿£¿ï¢£¿£¿÷·£¿üäߤï¢ðÍ£¿£¿£¿£¿£¿ÓÁ£¿£¿£¿£¿ß¤ðÍ£¿£¿û©ðÍ£¿ÓÁ£¿£¿£¿£¿òÓ£¿ÌÔ£¿Ô¼êÐî¿õôðÍ£¿£¿£¿£¿ÚªéÀ£¿£¿£¿ü·£¿©ùØ®òÓ£¿Ê£¿£¿û©ðÍ£¿£¿Ø·£¿£¿û©ðÍ£¿ç±£¿êø£¿û©Ë⣿ڪéÀ£¿£¿è¯£¿£¿£¿éÀ£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿Î±û©£¿£¿£¿£¿ö´£¿ |
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| Atmospheric Acid Deposition: Nitrogen Saturation of Forests: Volume weighted annual average wet deposition of nitroge at 33 sites in Korea during 1999-2004 ranged 7.28 to $21.05kgN{cdot}ha^{-1}{cdot}yr^{-1}$ with average $12.78kgN{cdot}ha^{-1}{cdot}yr^{-1}$, which values are similar level with nitrogen deposition of Europe and North America. The temperate forests that suffered long-term high atmospheric nitrogen deposition are gradually saturated with nitrogen. Such nitrogen saturated forest watersheds usually leach nitrate ion ($NO_3^-$) in stream water and soil solution. It may be likely that Korean forest ecosystems are saturated by much nitrogen deposition. In leaves with nitrogen saturation ratios of N/P, N/K and N/Mg are so enhanced that mineral nutrient system is disturbed, suffered easily frost damage and blight disease, reduced fine-root vitality and mycorrhizal activity. Consequently nitrogen saturated forests decrease primary productivity and finally become forest decline. Futhermore understory species are replaced the nitrophobous species by the nitrophilous one. In soil with nitrogen saturation uptake of methane ($CH_4$) is reduced and emission of nitrogen monoxide (NO) and nitrous oxide ($N_{2}O$) are increased, which gases are greenhouse gas accelerating global warming. |
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| Nitrogen deposition;Nitrogen retention;Nitrogen saturation; |
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Journal of Ecology and Field Biology / v.29, no.3, 2006³â, pp.305-321
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1975-020X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200633242276137)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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