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Seasonal Variation of Water Quality of the Watersheds in the Agricultural Environment Promotion Zone
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 Title & Authors
Seasonal Variation of Water Quality of the Watersheds in the Agricultural Environment Promotion Zone
Kim, Chan-Yong; Kim, Chang-Bae; Kim, Jong-Soo; Seo, Young-Jin; Yoon, Jae-Tak;
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A study was conducted to investigate the seasonal changes in water quality of watershed in the Agricultural Environment Promotion Zone. Samples collected were 12 GW (ground water), 2 IW (irrigation water), 2 SW (stream water) in An-Dong City, 4 GW, 6 IW, 11 SW in Young-Yang Gun, and sampling was conducted separately during dry and rainy season. In the ground water, EC and ionic species, except pH, were higher than those in stream water, and especially concentration exceeded the limitation of drinking water. Concentration of ions decreased as the sampling depth was far from the soil surface. During a rainy season, the concentrations of and K in the stream water were slightly higher than those during season. COD was lower during dry season in Yong-Yang, while the trend was contrasted to An-Dong. These results suggest that ground water was polluted by fertilization and compost while streamwater was polluted by loss of soil and organic during the rainy season. Principal chemical components related with changing water quality were EC, , Ca, Mg, Na, , , in ground water, whereas , K, Mg, , in stream water.
ground water;irrigation;stream water;quality;ion;;;COD;
 Cited by
야관문 에탄올 추출물의 자외선 노출에 의한 피부 광노화 개선 효과,정희경;최미옥;김배진;조성경;정유석;

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