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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.39, no.3, 2006³â, pp.331-339
¸ð·¡ ĸÇÎ µÎ²²°¡ ÅðÀû¹° ÀÎ ¿ëÃâ¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Impact of Thickness of Sand Capping on Phosphorus Release Rate from Sediment )
Á¤¿ìÇõ;±è°ÇÇÏ; Çѳ²´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;Çѳ²´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;
 
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º» ¿¬±¸´Â ÅðÀû¹°ÀÇ ÀÎ ¿ëÃâÀ» Á¦¾îÇϱâ À§ÇÑ ¹æ¹ýÀ¸·Î ¸ð·¡¸¦ ÀÌ¿ëÇÑ Ä¸ÇÎÀ» Æ÷¼³ÇÒ °æ¿ì µÎ²²¿¡ µû¸¥ ÀÎ ¿ëÃâÀ² Àú°¨ È¿°ú¸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. ĸÇÎÀº ÅðÀû¹°ÀÇ ÀÎÀÌ ¼öü·Î ¿ëÃâµÇ´Â ¼Óµµ¸¦ Àú°¨½Ã۸ç, ¹Ì»ý¹°ÀÇ ±âÁú¼Ò¸ð ÀÌÇÏ·Î ±× ¼Óµµ¸¦ ³·Ãß¸é ¼öü³»ÀÇ ÀÎÀÇ ³óµµ¸¦ ÀÏÁ¤ÇÏ°Ô À¯ÁöÇÒ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. ¸ð·¡Ä¸ÇÎÀÇ µÎ²²¿Í ¿ëÃâÀú°¨Àº ¼±ÇüÀÇ »ó°ü°ü°è¸¦ º¸À̸ç ĸÇÎ µÎ²²°¡ 40 mm¿¡¼­ 80 mm·Î µÎ²¨¿ï¼ö·Ï Å»»ê¼Ò°è¼ö°¡ 0.311 $day^{-1}$¿¡¼­ 0.262 $day^{-1}$À¸·Î ÀÛ¾ÆÁö°í ÀÖÀ¸¸ç, µÎ²²°¡ Áõ°¡ÇÔ¿¡ µû¶ó ÀçÆø±â °è¼ö´Â 0.013 $day^{-1}$¿¡¼­ 0.0240 $day^{-1}$À¸·Î Ä¿Áö´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ȸ±ÍºÐ¼®ÇÑ °á°ú¿¡ ÀÇÇϸé ÃÖ¼ÒÇÑ 20${sim}$40 mmÀÇ ¸ð·¡Ä¸ÇÎÀ» ½Ç½ÃÇÏ´õ¶óµµ ÀÎ ¿ëÃâ·®À» È¿À²ÀûÀ¸·Î Àú°¨ ½Ãų ¼ö ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
This research was carried out to understand the impacts of thickness of sand capping to control phosphorus release from sediment into overlying water. As capping effectively retards release flux, phosphorus concentration in water body can be maintained if phosphorus release rate was kept under microbial degradation rate. With capping thickness increases, deaeration rate become less, while reaeration coefficient become higher. Phosphorus release rate and capping thickness were linearly correlated. The results of regression analysis indicated that phosphorus release can be controlled effectively by sand capping of least 20${sim}$40 mm thickness.
 
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.39, no.3, 2006³â, pp.331-339
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200618317187410)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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