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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.33, no.1, 2000³â, pp.23-30
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ÆÈ´çÈ£ ¼öº¯ºÎ ÅðÀû¹°ÀÌ ¼öÃþÀÇ »ê¼Ò¼Ò¸ð¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Bottom Sediments on Oxygen Demand of Overlying Water in Onshore of Lake ) |
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| ÃÊ·Ï(ÇѱÛ) ÀÔ·ÂÀÚ : ÅðÀûÃþ »ê¼Ò¿ä±¸´Â ¼öÁßÀÇ ÅðÀûÃþ¿¡¼ »ý¹°ÇÐÀû È£±â¼º ´ë»ç¿Í ÈÇÐÀû »êÈ¿¡ ¼Ò¸ðµÇ´Â ¿ëÁ¸»ê¼Ò·®À¸·Î 1999³â 4¿ùºÎÅÍ 11¿ù »çÀÌ¿¡ ÆÈ´çÈ£ ÇöÀå¿¡¼ÀÇ SOD´Â Á¶»ç½ÃÁ¡¿¡ µû¶ó $4{sim}5$ ½Ã°£µ¿¾È $1.57{sim}12.55$ mg $O_{2}m^{-2}h^{-1}$·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ SOD´Â ÅðÀûÀ¯±â¹°ÀÇ ¾ç°ú ÅðÀûÃþ ³»·ÎÀÇ »ê¼Ò È®»êÀÇ ¿µÇâÀÌ ÄÇ´Ù. Ãʱâ 30ºÐ µ¿¾È¿¡ ¹°°ú ÅðÀûÃþÀÇ »ê¼Ò¿ä±¸¸¦ ºñ±³Çϸé SOD°¡ ¼öÃþ Àüü »ê¼Ò¼Ò¸ðÀÇ $63.8{sim}94$%¸¦ Â÷ÁöÇÏ¿´´Ù. ½ÇÇè½Ç ³»ÀÇ SOD ÃøÁ¤¿¡¼ ÈÇÐÀû ÅðÀûÃþ »ê¼Ò¿ä±¸´Â Å©°Ô ÀϾÁö ¾Ê¾ÒÀ¸¸ç ÅðÀûÃþÀÇ Åº¼Ò¼º »ê¼Ò¿ä±¸´Â Àüü SODº¸´Ù Àû°Ô ³ªÅ¸³µ´Ù. ÀÌ °á°ú·ÎºÎÅÍ ÆÈ´çÈ£ÀÇ SOD´Â ÁÖ·Î »ý¹°ÇÐÀû »ê¼Ò¿ä±¸¿¡ ÀÇÇÑ °ÍÀ̸ç ÁúÈÀÛ¿ë¿¡ ÀÇÇÑ »ê¼Ò¿ä±¸°¡ SOD¿¡ Å« ºñÁßÀ» Â÷ÁöÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ÅðÀûÃþÀÇ µÎ²²°¡ SOD¿¡ ¹ÌÄ¡´Â ¿µÇâÀº ÅðÀû¹°ÀÇ Æ¯¼º¿¡ Å©°Ô Á¿ìµÇ¸ç À¯¼ÓÀ» 2¹è·Î ºü¸£°Ô ÇÑ °æ¿ì¿¡´Â SOD°¡ $1.4{sim}1.9$¹è Áõ°¡ÇÏ¿´´Ù. º» ¿¬±¸¸¦ ÅëÇØ SOD°¡ ¼öÃþÀÇ ¿ëÁ¸»ê¼Ò¸¦ °¨¼Ò½ÃŰ´Â ÁÖ¿äÇÑ ¿äÀÎÀÓÀ» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç »ó¼ö¿øÀ¸·Î ÀÌ¿ëµÇ´Â È£¼ö¿¡¼ À̸¦ °¨¾ÈÇÑ ¼öÁú°ü¸®°¡ Àû¿ëµÇ¾î¾ß ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| n situ sediment oxygen demand (SOD), which takes place with the uptake of dissolved oxygen for biological metabolism and chemical oxidation in sediments, ranged from 1.57 to $12.55;mg;O_2;m^{-2};h^{-1}$ in onshore of Lake Paldang from April to November 1999. SOD was influenced by the amount of organics and oxygen diffusion. Comparing the oxygen demands partitioning between overlying water and sediment during initial phase, SOD accounted for $63.8{sim}94%$ of total oxygen demand in Lake Paldang. The chemical SOD and nitrogenous oxygen demand ranged $1.2{sim}18.3%$ and $8.3{sim}51.7%$ of total SOD, respectively. This result indicated that SOD in Lake Paldang occurred mainly by aerobic respiration and nitrification. Although the flow velocity could increase SOD within a certain limit, the effect of sediment depth on SOD was dependent on physicochemical properties of the sediment. This study showed that SOD can represent a significant portion of the total oxygen up-take in Lake Paldang. Therefore, the assessment of SOD might be necessary for the control of water quality. |
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| Ű¿öµå |
| Sediment oxygen demand;BOD;Nitrogenous oxygen demand;Chemical oxygen demand;Lake Paldang; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.33, no.1, 2000³â, pp.23-30
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200018317175176)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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