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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.2, 2003³â, pp.172-180
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( Algal Growth Potential Test (AGPT) in the Stream- Reservoir System of the Pyeongtaek Reservoir Watershed, Korea ) |
| Ȳ¼øÁø;½ÅÀç±â; °Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ Áö¿ª°Ç¼³È¯°æ°øÇаú;
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| ÆòÅÃÈ£¿Í ÁÖ¿ä À¯ÀÔÇÏõ¿¡¼ 2000³â 3¿ùºÎÅÍ 12¿ù±îÁö ¼öÁúÀÇ »ý¸ôÇÐÀû Æò°¡¸¦ À§ÇØ ³²Á¶·ù Microcystis aeruginosaÀÇ Á¶·ù»ýÀåÀáÀç·ÂÃøÁ¤ (AGPT)À» °èÀý¿¡ µû¶ó 4ȸ ÃøÁ¤ÇÏ¿´´Ù. ÆòÅÃÈ£¿Í À¯ÀÔÇÏõ¿¡¼ AGPTÀÇ ¹üÀ§¿Í Æò±Õ°ªÀº °¢°¢ 0${sim}$463mg dw/1, 90 mg dw/lÀ̾ú´Ù. À¯ÀÔÇÏõ Áß AGPTÀÇ Æò±Õ°ªÀº Ȳ±¸Áöõ¿¡¼ 343 mg dw/1·Î¼ °¡Àå ³ô¾Ò°í ¼Á¤Ãµ, ¼ºÈ¯Ãµ, ¿À»êõ°ú ÁøÀ§Ãµ ¹× ¾È¼ºÃµ¿¡¼ °¢°¢ 158, 66, 29¹× 21mg dw/1 ¼øÀ¸·Î °¨¼ÒÇÏ¿´´Ù. ÆòÅÃÈ£¿¡¼ AGPT°ªÀº 0${sim}$138 mg dw/1 ¹üÀ§(Æò±Õ 54 mg dw/1)¿´À¸¸ç ´ëüÀûÀ¸·Î À¯ÀÔÇÏõ°ú ±ÙÁ¢µÈ»ó·ù¿¡¼ ³ô°í ÇÏ·ù·Î °¥¼ö·Ï °¨¼ÒÇÏ´Â ¾ç»óÀ» º¸¿´À¸³ª Çϰ迡 À¯ÀÔ·®ÀÌ ±ÞÁõÇÑ Á÷ÈÄ¿¡´Â »ó·ù¿¡¼ ³²Á¶·ùÀÇ ´ë¹ß»ý (130${mu}g$ chl-a/l)À¸·Î ÀÎÇØ ¿ÀÈ÷·Á ÇÏ·ù°¡ 2¹èÁ¤µµ ³ô¾Ò´Ù. ÆòÅÃÈ£¿Í À¯ÀÔÇÏõÀÇ ¼öÁúÀº °¥¼ö±â¿¡ ´õ¿í ¾ÇȵǾú°í ÀÌ ½Ã±â¿¡ AGPT°ªµµ ÄÇ´Ù. AGPT´Â ¿µ¾ç¿° Áß P¿Í »ó°ü(r=0.999, p⁢0.001)ÀÌ °¡Àå ³ô¾Æ Á¶·ùÀÇ »ýÀå¿¡ PÀÇ ¿µÇâÀÌ °¡Àå Å« °ÍÀ¸·Î ÃßÁ¤µÇ¾ú´Ù. ÆòÅÃÈ£ À¯¿ª¿¡¼ AGPT´Â ½Ã°ø°£ÀûÀ¸·Î º¯È ÆøÀÌ Äǰí À¯ÀÔÇÏõÀÇ ¿µ¾ç¿° ¼öÁذú ¹ÐÁ¢ÇÑ °ü·Ã¼ºÀÌ ÀÖ¾ú´Ù. AGPT¿¡ ÀÇÇÑ ¼öÁú»óÅ´ °ú¿µ¾ç ¼öÁØ (>20 mg dw/1)À¸·Î Æò°¡µÇ¾î ÀÌ¿¡ ´ëÇÑ ¼öȯ°æ °ü¸®°¡ Áß¿äÇÏ¿´´Ù. AGPT´Â Á¶·ù »ýÀå¿¡ ´ëÇÑ Á¦ÇÑ¿µ¾ç¿° ÆÇÁ¤ »Ó¸¸ ¾Æ´Ï¶ó, ¼öÁß fertility¸¦ Æò°¡ÇÔ¿¡ ÀÖ¾î À¯¿ëÇÏ¿´´Ù. |
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| For a biological assessment of Pyeongtaek Reservoir and its major influent streams, an algal growth potential test (AGPT) was conducted with the blue-green algae Microcystis aeruginosa in March, June, September and December, 2000. The range and average value of AGPT were from 0 to 463 mg dw/l and 90 mg dw/l, respectively. For the influent streams in particular, the average of AGPT was the in the Hwangguchi Stream (343 mg dw/l). It decreased to 158, 66, 29, 21, and 21 mg dw/l in the Sojong Stream, Songhwan Stream, Osan Stream, Chinwi Stream, and Ansong Stream, respectively. The AGPT values in the reservoir ranged from 0 to 138 mg dw/1(mean 54 mg dw/1) with a tendency to increase in the upstream, which was close to the influent streams. In general, the AGPT values decreased further in the downstream. Immediately after the abrupt increase in influent discharge in summer, the AGPT value in the downstream almost doubled due to the proliferation of blue-green algae. The water quality of Pyeongtaek Reservoir and its influent streams further deteriorated during the drought period. Similarly, the AGPT value was the highest during this period. The AGPT values showed the closest correlation with the content of P (r = 0.999, p<0,001). Thus, it could be concluded that the content of P is highly effective in the growth of algae. In the Pyeongtaek Reservoir Watershed, the AGPT values varied in space and time. It was also closely related to the nutrient content of influent streams. The AGPT values revealed that the water quality state was hypertrophic (> 20 mg dw/1). Thus, control of the aquatic environment is essential. AGPT is very useful in evaluating the fertility and pollution state of the water as well as determining the nutrients that limit the growth of algae. |
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| Ű¿öµå |
| algal growth potential test(AGPT);Microcystis aeruginosa;stream;reservoir;water quality;wastewater; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.2, 2003³â, pp.172-180
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200318317181176)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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