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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.40, no.2, 2007³â, pp.223-233
¿ì¸®³ª¶ó ³ó¾÷¿ë Àú¼öÁöÀÇ ¿µ¾ç»óÅ ¹× ¼öÁúƯ¼º
( Trophic State and Water Quality Characteristics of Korean Agricultural Reservoirs )
ÀÌÀ翬;ÀÌÀçÈÆ;½Å°æÈÆ;Ȳ¼øÁø;¾È±¤±¹; Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;ÇѾç´ëÇб³ ÇØ¾çȯ°æ°úÇаú;°Ç±¹´ëÇб³ ȯ°æ°úÇаú;Ãæ³²´ëÇб³ »ý¸í°úÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â $2002{sim}2005$³â±îÁö ÃøÁ¤µÈ Çѱ¹³óÃ̰ø»çÀÇ ¼öÁúÃøÁ¤ÀڷḦ ÀÌ¿ëÇÏ¿© °èÀýº°, °ø°£º° Àú¼öÁöÀÇ ºÎ¿µ¾çÈ­ ¹× ¼öÁú Ư¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. TN¿¡ ÀǰÅÇÏ¿´À» ¶§, ´ë´Ù¼ö(ÀüüÀÇ 88%)ÀÇ Àú¼öÁö´Â ºÎ¿µ¾ç »óÅ·Π³ªÅ¸³µ´Ù. OECD ±âÁØ¿¡ ÀǰÅÇÏ¿© »êÁ¤ÇÑ TP¿¡ ÀÇÇÑ ¿µ¾ç»óÅ¿¡¼­´Â Àüü Àú¼öÁöÀÇ 26%°¡ ºÎ¿µ¾ç »óÅ·Π³ªÅ¸³µ°í, 71%´Â Áß¿µ¾ç, 3%´Â ºó¿µ¾ç »óÅ·Π³ªÅ¸³µ´Ù. °èÀýÀû º¯ÀÌ´Â °­¿ì ÁýÁß±âÀÎ 7¿ù¿¡¼­ 8¿ù »çÀÌ¿¡ °­ÇÏ°Ô ³ªÅ¸³ª°í ÀÖ¾úÀ¸¸ç, Àü±âÀüµµµµ, COD, SS, TN, TP ¹× CHL °ªÀº °­¿ì ÈÄ¿¡ Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. TP´Â Àü±âÀüµµµµ¿Í COD ³óµµ°¡ ³ôÀº Àú¼öÁö¿¡¼­ ³ôÀº ¼öÁØÀ¸·Î ³ªÅ¸³ª°í ÀÖ¾úÀ¸¸ç, TPÀÇ Áõ°¡¿¡ µû¶ó CHLÀÇ ³óµµµµ ÇÔ²² Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. COD¿Í SS´Â ÁýÁß °­¿ìÇØ¿¡ ³ôÀº ¼öÄ¡¸¦ ±â·ÏÇÏ¿´À¸¸ç, TP¿Í CHLÀº °¡¹³ÇØ¿¡ ºñÇÏ¿© ¾à 2¹èÁ¤µµ ³ôÀº ¼öÄ¡¸¦ ±â·ÏÇÏ¿´´Ù. ÀÌ´Â Àα٠Á¡ ºñ Á¡¿À¿°¿øÀ¸·ÎºÎÅÍ À帶 ±â°£¿¡ À¯±â¹° ¹× ºÎÀ¯¹°, ¿µ¾ç¿°ÀÇ ´Ù·® À¯ÀÔÀÌ ¿øÀÎÀ¸·Î ÀÛ¿ëÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇÑÆí ȸ±ÍºÐ¼®¿¡¼­´Â TN: TP ºñ¿Í TP°¡ ¸Å¿ì ³ôÀº »ó°ü°ü°è ($R^2$=0.84, p<0.001, n=34)¸¦ º¸¿´À¸¸ç, CHL°ú TP´Â 1Â÷ ÇÔ¼ö°ü°è $(Log_{10}TP=0.5{ imes}Log_{10}CHL+0.086)$¸¦ º¸¿´´Ù. TN, TP, CHL¿¡ ÀǰÅÇÑ À¯»çµµ ºÐ¼®¿¡¼­´Â ¾à 90% ¼öÁØ¿¡¼­ ¿°µµ°¡ ³ôÀ¸¸é¼­ ÇØ¾ç ÀÎÁ¢ Áö¿ª¿¡ À§Ä¡ÇÑ ±×·ì, ¿°µµ°¡ ³·À¸¸é¼­ ³»·ú¿¡ À§Ä¡ÇÑ ±×·ì, ±×¸®°í ¶Ñ·ÇÇÑ À§Ä¡ Ư¼ºÀ» º¸ÀÌÁö ¾Ê´Â Áß°£ÀûÀÎ ±×·ìÀ¸·Î ºÐ·ùµÇ¾ú´Ù.
For this study, we analyzed spatial and temporal patterns of trophic state and water quality over the period of $2002{sim}2005$, using the water chemistry dataset obtained from the Korea Rural community & Agriculture corporation. Most reservoirs, based on TN, showed eutrophic (about 88% of the total). About 20% of agricultural reservoirs, based on TP, showed eutrophic after the criteria of OECD (1982), while 71% and 3% were Hesotrophic and oligotrophic, respectively. Seasonal variations were evident due to the intense monsoon rain during July${sim}$August; conductivity, COD, SS, nutrients, and chlorophyll-${alpha}$ (CBL) increased in the postmonsoon compared to the premonsoon. TP values had positive functional relations with conductivity, COD, and CHL values. COD and SS peaked during the intense monsoon. Mean values of TP and CHL values were two times greater in the intense monsoon than the weak monsoon. The increased TP was probably due to inorganic suspended solids from point and non-point sources during the monsoon. Ratios of TN : TP had strong in- verse relations ($R^2$=0.843, p<0.001, n=34) with TP, but not with TN (p>0.05, n=34). Log10-transformed CHL increased with TP in most P-limited reservoirs $(Log_{10}TP=0.5{ imes}Log_{10}CHL+0.086)$. Similarity analysis, based TN, TP, and CHL showed that three groups were separated at 90% similarity level; One group was reservoirs with high salinity nearby the seawater, and the other two groups were reservoirs with a low salinity of the inland, and intermediate salinity, respectively.
 
Ű¿öµå
Trophic state;agricultural reservoir;empirical model;chlorophyll-${/alpha}$;nutrient;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.40, no.2, 2007³â, pp.223-233
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200709905950738)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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