|
|
|
Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.5, 2000³â, pp.551-559
|
½ÃÈÈ£ÀÇ ¼öȯ°æ Áø´Ü°ú ¼öÁúȸº¹ Æò°¡
( Diagnosis of Water Environment and Assessment of Water Quality Restoration in Lake Shihwa ) |
| ±èµ¿¼·;°í¼®±¸; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;Çѱ¹¼öÀÚ¿ø°ø»ç;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| ¼ÇؾÈÀÇ ½Åµµ½Ã ¹× »ê¾÷´ÜÁö ±Ù±³¿¡ À§Ä¡ÇÑ Àΰø ½ÃÈÈ£¿¡¼ À¯ÀÔÁöõ ºÎ±ÙÀÇ »ó·ùÄíÅÍ ÃÖÇÏ·ùÀÇ ¼ö¹®ºÎ±Ù±îÁö 3~8°³ ÁöÁ¡¿¡¼ 1994³â~1999³â¿¡ °ÉÃÄ ¼öȯ°æ ¿ÀÀÎÀ» ¸Å¿ù 1~2ȸ Á¶»çÇÏ¿´´Ù. ȯ°æ¿äÀÎÀº ¿¬Æò±Õ $COD_{Mn}$, ¿±·Ï¼Ò $alpha$, ÃÑÁú¼Ò, ÃÑÀÎ³óµµ ¹× Åõ¸íµµ°¡ °¢°¢ 5.2~15.1mg/L, $7.3~148.1;mu extrm{g}$/L, 1.50~4.48 mgN/L, 0.055~0.281 mgP/L ¹× 0.5~1.4 m·Î¼ Áß¿µ¾ç´Ü°è¿¡¼ °ú¿µ¾ç´Ü°è±îÁöÀÇ ¼öÁúÀ» º¸¿´´Ù. ½ÃÈÈ£°¡ Á¶¼ºµÈ 1994³âºÎÅÍ 1997³â 3¿ù ÀÌÀü±îÁöÀÇ ¼öÁúÀº ¿ÜºÎ ¶Ç´Â ³»ºÎÀÇ ÀúÃþÀ¸·ÎºÎÅÍ ºÎÇϵǴ ¿À¿°¹°ÁúÀÌ Áö¼ÓÀûÀ¸·Î È£¼Ò³»¿¡ ÃàÀûµÇ¾î ±Øµµ·Î ¾ÇȵǾú´Ù. ¼öÁú¿À¿°Àº ¿¬Áß ½Ä¹°ÇöûũſÀÌ ´ë¹ß»ýÇÏ´Â »ý¹°ÇÐÀû Çö»óÀ¸·Î ¶Ñ·ÇÇÏ°Ô ³ªÅ¸³µ´Ù. ¹Ý¸é¿¡ 1997³â 3¿ùºÎÅÍ 1999³â±îÁö´Â ´Ù¾çÇÑ ¼öÁú°³¼±´ëÃ¥ÀÇ ½ÃÇàÀ¸·Î ºü¸¥ ¼ÓµµÀÇ ¼öÁúȸº¹ÀÌ °üÂûµÇ¾ú°í, 1999³âÀÇ ¼öÁúÀº ´ã¼öÈ ÃʱâÀÇ ¼öÁú·Î ȸº¹µÈ °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. ½ÃÈÈ£ÀÇ ¼öÁúȸº¹Àº 1997³â 7¿ùºÎÅÍ ½ÃÇàÇÑ ÇØ¼öÀ¯Åë¿¡ ÀÇÇØ °¡Àå Å« È¿°ú¸¦ º¸¿´°í, 1997³â 3¿ùºÎÅÍ ¿î¿µÇÑ ¹Ý¿ù°ø´Ü ¹× ½ÃȰøÀåÀÇ Â÷Áý¼ö·Î¿¡ ÀÇÇÑ À¯ÀÔºÎÇÏ·® Àú°¨À¸·Î ¼öÁúȸº¹È¿°ú¸¦ ´õ¿í Çâ»ó½ÃŲ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. |
|
| In order to diagnose the water environment and assess the water quality restoration, long term trend of water environment has been surveyed at 3-R stations from 1994 to 1999 in Lake Shihwa. Annual mean values of $COD_{Mn}$, Chlorophyll a, total nitrogen, total phosphorus and Secchi depth are ranged in 5.2-15.1 mg/L, 7.3-14R.1 jlg/L, 1.50-4.84 mgN/L, 0.055-0.281 mgP/L and 0.5 -1.4 m, respectively, during the study periods. Carson's trophic state indeies were varied from mesotrophy in 1994 and 1995, hyper-eutrophy in 1996 and 1997, to meso eutrophy in 199R and 1999. After dike construction, water quality were rapidly deteriorated by allochthonous and autochthonous loading of high nutrients and organic carbon. Eutrophication phenomena were characterized by massive phytoplankton blooms and high concentration of COD. However, after onset of restoration program, lake water quality was rapidly restored to the level of just after sea-dike construction. The diversion of waste water inflowing from the Panwol and the Sihwa industrial districts which was started from March, 1997 has contributed to improve water quality in the surface layer. And the tidal mixing (sea water inflowing) through the continuous gate operation was the most effective measure to the whole lake restoration.ration. |
| |
| Ű¿öµå |
| ½ÃÈÈ£;¹æÁ¶Á¦°Ç¼³;¼öÁúȸº¹;ºÎ¿µ¾çÈ;Shihwa Lake;Sea-Dike construction;water quality restoration;Eutrophion;diversion of waste water; |
| |
|
|
 |
|
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.5, 2000³â, pp.551-559
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920730380)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|