• Title/Summary/Keyword: irrigation water quality

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Actual Uses and Water Qualities of Irrigation Water from Agricultural Reservoir and Pumping Station (관개용 저수지 및 양수장의 농업용수 공급량 및 수질)

  • Choi, Jin-Kyu;Han, Kang-Wan;Koo, Ja-Woong;Son, Jae-Gwon
    • Korean Journal of Soil Science and Fertilizer
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    • v.34 no.3
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    • pp.205-212
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    • 2001

  • Joongpyong reservoir and Guiseok pumping station were selected as the hydrologic monitoring sites for the water level gauging and amount of irrigation water use, and water samples were taken and analysed periodically. Rating curves were derived from the relations water level and discharge data, and water supply through culvert of the Joongpyong reservoir was $593,200m^3$ and irrigation water $2,913,000m^3$ from the Guiseok pumping station. Changes of stream water qualities such as water temperature, pH, EC, total nitrogen, total phosphorus were examined, pH was 6.98.1 lower than the criteria of agricultural water 6.0~8.5, total nitrogen $0.9{\sim}4.5mg\;L^{-1}$, total phosphorus $0.008{\sim}0.036mg\;L^{-1}$. The results from this study could be offered as a basic data for the irrigation plan and water quality management.

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The Effect of Reclaimed Sewage Irrigation on the Rice Cultivation (벼 재배시 생활오수 처리수 관개 효과)

  • Yoon, Chun-Gyeong;Kwun, Soon-Kuk;Chung, Ill-Min;Kwon, Tae-Young
    • Korean Journal of Environmental Agriculture
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    • v.18 no.3
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    • pp.236-244
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    • 1999

  • A feasibility study was performed to examine the agronomic application of treated sewage on paddy rice culture by field experiment. The domestic sewage was treated by the constructed wetland system which was in subsurface flow type and consisted of sand and macrophyte. The effluent of the wetland system was adjusted to maintain the total nitrogen concentration below $25mgL^{-1}$ and used for irrigation water. Four treatments include (1) irrigation of treated sewage after concentration adjusted with conventional fertilization (TWCF), (2) irrigation of treated sewage after concentration adjusted with half of the conventional fertilization (TWHF), (3) irrigation of treated sewage after concentration adjusted without fertilization (TWNF), and (4) irrigation of treated sewage as it was without fertilization (SWNF). These cases were compared to the control case of tap water irrigation with conventional fertilization (Control). Generally, addition of the treated sewage to the irrigation water showed no adverse affect on paddy rice culture, and even improvement was noticed in both growth and yields. TWCF showed the best result and the yields exceed the Control in about 10%. Overall performance of the treatments was TWCF, Control, TWHF, TWNF, and SWNF in decreasing order. From this study, it appears that reuse of treated sewage as a supplemental irrigation water could be feasible and practical alternative for ultimate sewage disposal which often causes water quality problem to the receiving water body. For full scale application, further study is recommended on the specific guidelines of major water quality components and public health.

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Water Quality of Agricultural Groundwater in Western Coast Area and Eastern Mountain Area of Jeollabuk-do (전라북도 서부 해안지역과 동부 산악지역 농업용 지하수 수질 평가)

  • Jo, Jae-Yeong
    • Journal of Applied Biological Chemistry
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    • v.54 no.3
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    • pp.218-224
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    • 2011

  • This study was conducted to estimate the water quality of agricultural groundwater well located in Buan-gun, Jinan-gun, Sunchang-gun, and Jangsu-gun of Jeollabuk-do. The groundwater samples were collected at 328 sites (Buan-gun: 158, Jansu-gun: 45, Sunchang-gun: 32, Jinan-gun: 93, respectively). We measured 4 kinds of general contaminants (pH, $NO_3-N$, $Cl^-$, and COD) and 10 kinds of specific contaminants (Cd, As, $CN^-$, Hg, phenol, Pb, $Cr^{+6}$, organophosphorus, trichloroethylene, and tetrachloroethylene). Generally, the level of general contaminants and specific contaminants in the agricultural groundwater was suitable for water quality standard in all sites for agricultural irrigation water. Exceptionally, chloride concentrations were exceeded water quality standard of agricultural groundwater at some sites in western coast area of Jeollabuk-do. Although water quality standards in agricultural groundwater have been suitable, the water contaminants of agricultural groundwater in western coast area were gradually increased than eastern mountain area.

  • https://doi.org/10.3839/jabc.2011.036 인용 PDF KSCI