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SS and COD Runoff from a Rice Field Watershed during Storm Events in the Growing and Non-growing Seasons

강우시 영농기와 비영농기의 광역논에서의 부유물질 (SS)과 COD의 유출특성

  • Lee, Jeong Beom (Department of Road Construction, Uiwang City Hall) ;
  • Lee, Jae Yong (Department of Agricultural and Rural Engineering, Chungbuk National University) ;
  • Kim, Jin Soo (Department of Agricultural and Rural Engineering, Chungbuk National University)
  • Received : 2017.02.10
  • Accepted : 2017.03.07
  • Published : 2017.03.31

Abstract

The objective of this research was to investigate runoff characteristics of suspended solid (SS) and chemical oxygen demand (COD) from a paddy field watershed during storm events in the growing and non-growing seasons. Average of event mean concentration (EMC) of pollutants were 56.9 mg/L for SS and 23.9 mg/L for COD in the non-growing season and 50.3 mg/L for SS and 11.9 mg/L for COD in the growing season. The average EMC of SS in the study area was much lower than that in the uplands irrespective of cultivation, suggesting that paddy fields control soil erosion. This may be because flooding and wet soil in the growing season, and rice straw residue and stubble on the topsoil in the non-growing season reduce soil erosion. The changing tillage practice from fall tillage to spring tillage avoids soil erosion due to shortening of the tilled fallow period. However, the average EMC of COD in the non-growing season was about twice as much that in the growing season likely due to the runoff of organics like rice straw residues. The relationship between SS and COD loads and stormwater runoff volume was expressed by power function. The exponent for SS was higher than that for COD, suggesting that SS load increased with stormflow runoff more than COD load did. The mean SS and COD loads per storm during the non-growing season were much lower than those in the growing season, and therefore non-point source pollution in the growing season should be managed well.

Keywords

References

  1. APHA (American Public Health Association), 1998. 20th ed. Standard Methods for the Examination of Water and Wastewater, Washington, D.C., USA.
  2. Chen, S.-K., C.-W. Liu, and Y.-R Chen, 2002. Assessing soil erosion in a terraced paddy field using measurements and universal soil loss equation, Catena. 95: 131-141.
  3. Chow, V. T., D. R. Maidment, and L. W. Mays, 1998. Applied Hydrology, McGraw-Hill, NY, NY, USA.
  4. Feng, Y. W., I. Yoshinaga, E. Shiratani, T. Hitomi, and H. Hasebe, 2004. Characteristics and behavior of nutrients in a paddy field area equipped with a recycling irrigation system. Agricultural Water Management 68(1): 47-60. https://doi.org/10.1016/j.agwat.2004.02.012
  5. Han, K.-H., J.-H. Kim, J.-S. Lee, J.-T. Lee, J.-Y. Cho, and K. S. Yoon, 2005. Effect of sampling frequency during storm period on estimation of pollutant load from paddy field. Korean Journal of Environmental Agriculture 24(1): 17-23 (in Korean). https://doi.org/10.5338/KJEA.2005.24.1.017
  6. Kim, J. S., S. Y. Oh, and K. Y. Oh, 2006a. Nutrient runoff from a Korean rice paddy watershed during multiple storm events in the growing season. Journal of Hydrology 327: 128-139. https://doi.org/10.1016/j.jhydrol.2005.11.062
  7. Kim, T. C., U.-S. Gim, J. S. Kim, and D.-S. Kim, 2006b. The multi-functionality of paddy farming in Korea. Paddy and Water Environment 4(4): 169-179. https://doi.org/10.1007/s10333-006-0046-6
  8. Kunimatsu, T., L. Luong, M. Sudo, and I. Takeda, 1994. Runoff loading of materials causing water pollution from a paddy field during a non-planting period. Trans. of the Japanese Society of Irrigation, Drainage, and Land Reclamation 170: 45-54 (in Japanese).
  9. Lee, K., J. Jung, D. Choi, K. Yoon, W. Choi, S. Choi, S. Lim, H. Park, B. Lim, and G. Choi, 2011. Characteristics of suspended solids from paddy fields. J. of Korean Society on Water Quality, 27(6): 868-876.
  10. Lee, J. B., J. Y. Lee, S. H. Li, J. J. Jang, I G. Jang, and J. S. Kim, 2014. Nutrient balance in the paddy fields watershed with a source of river water. J. of the Korean Society of Agricultural Engineers 56(5): 11-19 (in Korean). https://doi.org/10.5389/KSAE.2014.56.5.011
  11. Lee, J. Y., 2015. Characteristics of pollutant runoff from a sloping upland field during multiple storms. M. S. diss., Cheongju: Chungbuk National University (in Korean).
  12. Ministry of Agriculture, Food, and Rural Affairs, 2016. Agriculture, Food, and Rural Affairs Statistic Yearbook, Sejong, Korea (in Korean).
  13. Ministry of Environment, 1997. Standard Methods for Water Quality 199-209 (in Korean).
  14. Novotny, V., 2003. Water Quality: Diffuse Pollution and Watershed Management, John Wiley & Sons, Inc., NY, USA.
  15. Oh, S. Y., J. S. Kim, S. J. Kim, and C. G. Yoon, 2002. Unit loads of pollutants in a paddy fields area with large-scaled plots during irrigation seasons, J. of the Korean Society of Agricultural Engineers 44(2): 136-147 (in Korean).
  16. Park, S. C., C. R. Oh, Y. H. Jin, and D. S. Kim, 2005. Study on runoff characteristics of non-point source in rural area of Seomjin watershed. J. of the Environment Sciences 14(11): 1057-1062 (in Korean). https://doi.org/10.5322/JES.2005.14.11.1057
  17. Rekolainen, S., 1989. Effect of snow and soil frost melting on the concentrations of suspended solids and phosphorous in two rural watersheds in Western Finland. Aquatic Science 51(3): 211-223. https://doi.org/10.1007/BF00877743
  18. Shin, M. H., J. J. Jang, Y. Jung, Y. S. Park, K. J. Lim, and J. D. Choi, 2015. Effect of straw mulch on runoff and NPS pollution reduction from experimental plots under climate change scenario in Korea. J. of Irrigation and Drainage Engineering 141(8), doi: http://dx.doi.org/10.1061/(ASCE)IR.1943-4774.0000862.
  19. Song, J.-H., M.-S. Kang, I. Song, S.-H. Hwang, J. Park, S.-M. Jun, K.-U. Kim, and J.-R. Jang, 2013. Analysis of nutrient load balance in reservoir irrigated paddy block. J. of the Korean Society of Agricultural Engineers 55(6): 165-175 (in Korean).
  20. Takeda, I. and I. Fukushima, 2006. Long-term changes in pollutant load outflow and purification function in a paddy field watershed using a circular irrigation system. Water Research 40: 569-578. https://doi.org/10.1016/j.watres.2005.08.034
  21. Takeda, I., T. Kunimatsu, S. Kobayashi, and T. Maruyama, 1990. Storm runoff loadings from paddy field areas. Trans. of the Japanese Society of Irrigation, Drainage and Land Reclamation 147: 79-85 (in Japanese).
  22. Takeda, I., T. Kunimatsu, S. Kobayashi, and T. Maruyama, 1991. Pollutants balance of a paddy field area and its loadings in the water system. Trans. of the Japanese Society of Irrigation, Drainage and Land Reclamation 153: 62-72 (in Japanese).
  23. Toy, T. J., G. R. Foster, and K. G. Renard, 2002. Soil Erosion: Processes, Prediction, Measurement, and Control, 201-202, John Wiley & Sons, Inc., NY, USA.
  24. Wolfe, M. L. 2001. Hydrology, Ch. 1. In Agricultural Nonpoint Source Pollution: Watershed Management and Hydrology, eds. W. F. Ritter, and A. Shirmohammadi, 1-27, CRC Press LLC, Boca Raton, FL, USA.
  25. Yoon, C. G., B. H. Kim, J. J. Hong, and H. H. Sun, 2002a. Characteristics of pollutant loading from paddy field area with groundwater irrigation. J. of the Korean Society of Agricultural Engineers 44(5): 116-126 (in Korean).
  26. Yoon, K.-S., J.-G. Cho, K.-K. Han, J.-K. Choi, J.-G. Son, and J.-Y. Cho, 2002b Sediment losses from a paddy plot during cropping period. J. of Korean Society of Rural Planning 8(1): 69-76 (in Korean).
  27. Yoon, K. S., J.-Y., Choi, K. H. Han, and J. Y. Cho, 2002c Flow weighted mean concentration and runoff-mass load relationship of pollutant derived from intensively sampled water quality data of a paddy field. J. of the Korean Society of Agricultural Engineers 44(5): 127-135 (in Korean).
  28. Yoon, K. S., K. H. Han, J. Y. Cho, C. H. Choi, J. G. Son, and J. K. Choi, 2002d. Water and nutrient balance of paddy field irrigated from a pumping station during cropping period, J. of the Korean Society of Rural Planning 8(1): 15-25 (in Korean).
  29. Yoon, Y. S., S. H. Lee, J. J. Yu, and J. K. Lee, 2011. Analysis of nonpoint source runoff characteristics for the vineyard area. J. of the Environment Sciences 20(3): 361-372 (in Korean). https://doi.org/10.5322/JES.2011.20.3.361
  30. Zhang, Y., K. Jung, H.-R. Cho, K.-H. Han, M.-G. Kim, and Y.-K. Sonn, 2016. Suspended solids export by outflowing water from irrigation paddy field during rice growing season of Korea. J. of Soil Sci. Fert. 49(2): 218-225 (in Korean).

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