¶óÆæÆ®¦¢Ä«Æä¦¢ºí·Î±×¦¢´õº¸±â
¾ÆÄ«µ¥¹Ì Ȩ ¸í»çƯ°­ ´ëÇבּ¸½Ç޹æ Á¶°æ½Ç¹« µ¿¿µ»ó°­ÀÇ Çѱ¹ÀÇ ÀüÅëÁ¤¿ø ÇÐȸº° ³í¹®
ÇÐȸº° ³í¹®

Çѱ¹°Ç¼³°ü¸®ÇÐȸ
Çѱ¹°ÇÃà½Ã°øÇÐȸ
Çѱ¹µµ·ÎÇÐȸ
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
Çѱ¹»ýÅÂÇÐȸ
Çѱ¹¼öÀÚ¿øÇÐȸ
Çѱ¹½Ä¹°ÇÐȸ
Çѱ¹½Ç³»µðÀÚÀÎÇÐȸ
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
Çѱ¹ÀܵðÇÐȸ
Çѱ¹Á¶°æÇÐȸ
Çѱ¹Áö¹Ý°øÇÐȸ
Çѱ¹ÇÏõȣ¼öÇÐȸ
Çѱ¹È¯°æ»ý¹°ÇÐȸ
Çѱ¹È¯°æ»ýÅÂÇÐȸ

Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.4, 2001³â, pp.261-266
ÀÌź½ÀÁö¿¡¼­ ÀÌ»êȭź¼ÒÀÇ ³óµµ°¡ Á¶·ùÀÇ Áõ½Ä, ¸Þź »êÈ­ ¹× ¾Æ»êÈ­Áú¼Ò »ý¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Impacts of Elevated $CO_2$ on Algal Growth, $CH_4$ Oxidation and $N_2O$ Production in Northern Peatland )
;°­È£Á¤; ;ÀÌÈ­¿©ÀÚ´ëÇб³ ȯ°æÇаú;
 
ÃÊ ·Ï
ÀÌ»êȭź¼Ò ³óµµ°¡ Áõ°¡ÇÒ ¶§¿¡ ºÏ±¸ ÀÌź ½ÀÁö¿¡¼­ ³ªÅ¸³ª´Â »ýÁöÈ­ÇÐÀû º¯È­°úÁ¤À» »ìÆìº¸¾Ò´Ù. Ç¥¸é ½Ä»ýÀ» Æ÷ÇÔÇÑ ¿ÂÀüÇÑ Äھ ºÏ¿þÀϽºÀÇ ÀÌź½ÀÁö·ÎºÎÅÍ Ã¤ÃëÇÏ¿©, ³ôÀº ÀÌ»êȭź¼Ò³óµµ(700ppm)¿Í ÀÚ¿¬»óÅ (350ppm)ȯ°æ¿¡¼­ 4°³¿ù°£ ¹è¾çÇÏ¿´´Ù. ¹è¾ç ÈÄ, È­ÇÐÀûÀÎ ÀúÇØÁ¦¸¦ ÀÌ¿ëÇÏ¿© ½ÀÁö Åä¾ç¿¡¼­ ¹Ì·®±âüÀÇ »ý¼º°ú ¼Òºñ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¸ÞźÀÇ °æ¿ì, ºÒÈ­¸Þź($CH_3F$)¸¦ ÀÌ¿ëÇÏ¿© ¸Þź »êÈ­À²À» °áÁ¤ÇÏ¿´°í, Áú»êÈ­¿Í Å»ÁúÀÛ¿ëÀ» ÃøÁ¤ÇϱâÀ§ÇØ ¾Æ¼¼Æ¿·»($C_2H_2$)ÀúÇØ ¹æ¹ýÀ» Àû¿ëÇÏ¿´´Ù. À̸¦ À§ÇØ, ¸ÕÀú °¢ ÃøÁ¤ ¹æ¹ýÀ» ½ÀÁö ½Ã·á¿¡ ÀûÇÕÇϵµ·Ï ÃÖÀûÈ­ ½ÃÄ×°í, µÑ°·Î µÎ ¼öÁØÀÇ ÀÌ»êȭź¼Ò¿¡¼­ ¹è¾çÇÑ ½Ã·á¿¡ ÀÌ ¹æ¹ýµéÀ» Àû¿ëÇÏ¿´´Ù. ³ôÀº ÀÌ»êȭź¼Ò ³óµµ´Â ¸ÞźÀÇ »ý¼º·®À» Áõ°¡ ½ÃÄ×À¸³ª(210´ë $100;ng;CH_4 g^{-1};hr^{-1}$), ¸Þź »êÈ­ÀÇ ¾çµµ Áõ°¡½ÃÄѼ­ (128´ë $15;ng;CH_4 g^{-1};hr^{-1}$) °á±¹¿¡´Â ¼ø¸Þź ¹æÃâ·®¿¡´Â º¯È­°¡ ¾ø¾ú´Ù. ¾Æ»êÈ­Áú¼ÒÀÇ °æ¿ì¿¡´Â Áõ°¡µÈ ¹ß»ý·®ÀÌ Å»Áú º¸´Ù´Â Áú»êÈ­ °úÁ¤¿¡¼­ »ý¼ºµÈ °ÍÀ¸·Î »ç·áµÈ´Ù. ÀÌ·¯ÇÑ º¯È­µéÀº ³ôÀº ÀÌ»êȭź¼Ò ÇÏ¿¡¼­ Á¶·ùÀÇ ¼ºÀåÀÌ Áõ°¡µÇ¾î ¾ß±âµÈ °ÍÀ¸·Î ÃßÃøµÈ´Ù.
Effects of elevated carbon dioxide ($CO_2$) on soil microbial processes were studied in a northern peatland. Intact peat cores with surface vegetation were collected from a northern Welsh fen, and incubated either under elevated carbon dioxide (700 ppm) or ambient carbon dioxide (350 ppm) conditions for 4 months. Higher algal biomass was found under the elevated $CO_2$ condition, suggesting $CO_2$ fertilization effect on primary production, At the end of the incubation, trace gas production and consumption were analyzed using chemical inhibitors. For methane ($CH_4$ ), methyl fluoride ($CH_3F$) was applied to determine methane oxidation rates, while acetylene ($C_2H_2$) blocking method were applied to determine nitrification and denitrification rates. First, we have adopted those methods to optimize the reaction conditions for the wetland samples. Secondly, the methods were applied to the samples incubated under two levels of $CO_2$. The results exhibited that elevated carbon dioxide increased both methane production (210 vs. $100;ng;CH_4 g^{-1};hr^{-1}$) and oxidation (128 vs. $15;ng;CH_4 g^{-1};hr^{-1}$), resulting in no net increase in methane flux. For nitrous oxide ($N_2O$) , elevated carbon dioxide enhanced nitrous oxide emission probably from activation of nitrification process rather than denitrification rates. All of these changes seemed to be substantially influenced by higher oxygen diffusion from enhanced algal productivity under elevated $CO_2$.
 
Ű¿öµå
Greenhouse gas;Mire;Global climatic changes;Wetland;Methane oxidizer;Denitrifying bacteria;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.4, 2001³â, pp.261-266
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317178599)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
¸ñ·Ïº¸±â
ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

ÇÏÀ§¹è³ÊÀ̵¿