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한국환경생물학회 / v.27, no.3, 2009년, pp.306-313 
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우포늪의 수환경요인 변화
( Changes of the Environmental Factors in Upo Wetland ) |
| 이정준;이정호; 대구대학교 과학교육학부;대구대학교 과학교육학부;
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| 초 록 |
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| In the Upo wetland, physico-chemical factors were observed during the period from March 2005 to December 2007 on a monthly basis. In the Upo wetland, water temperatures ranged $3.4{sim}34.5^{circ}C$. Conductivities were in the range of 133~806 ${mu}S;cm^{-1}$, which showed about 140 ${mu}S;cm^{-1}$ below in comparison with the precedent studies. The pH levels were between 6.7~9.1 with lower level in summertime. The dissolved oxygens were between 0.06~18.23 mg $L^{-1}$. COD ranged 4.9~20.8 mg $L^{-1}$, and showed a tendency to decrease every year. Nitrogen nutrients such as nitrate nitrogen ($NO_3-N$), ammonia nitrogen ($NH_3-N$) and total nitrogen (T-P) showed that they were generally decreased in comparison with those in the precedent studies. However the total nitrogen (T-N) is still considerably higher than the standard concentration level of eutrophication and algal blooming. Phosphate phosphorus ($PO_4-P$) and total phosphorus (T-P) were also shown as to be reduced considerably comparing with the values in the precedent studies. However, It was found out that total phosphorus (T-P) was dissolved over the criteria concentration of eutrophication. The average of TN/TP ratio was 18 in the Upo wetland, which proved that phosphorus was the limiting factor to the growth of phytoplankton in the Upo wetland. The chl-$alpha$ was the highest in wintertime and the lowest in summertime, and especially in 2006 summer when the cyanobacterial bloom developed, it showed extremely high concentration. |
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| 키워드 |
| Upo Wetland;physico-chemical factors; |
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환경생물 / v.27, no.3, 2009년, pp.306-313
한국환경생물학회
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200919061725416)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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