Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지

Effect of Nitrate in Irrigation Water on Iron Reduction and Phosphate Release in Anoxic Paddy Soil Condition

관개용수 중의 질산 이온이 논토양의 철 환원과 인 용출에 미치는 영향

  • Kim, Byoung-Ho (Division of Life and Environmental Science, Daegu University) ;
  • Chung, Jong-Bae (Division of Life and Environmental Science, Daegu University)
  • 김병호 (대구대학교 생명환경학부) ;
  • 정종배 (대구대학교 생명환경학부)
  • Received : 2010.01.28
  • Accepted : 2010.02.16
  • Published : 2010.02.28
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Abstract

Since ${NO_3}^-$ is amore favorable electron acceptor than Fe, high ${NO_3}^-$ loads function as a redox buffer limiting the reduction of Fe and following release of ${PO_4}^{3-}$ in flooded paddy soil. The effect ${NO_3}^-$ loaded through irrigation water on Fe reduction and ${PO_4}^{3-}$ release in paddy soil was investigated. Pot experiment was conducted where irrigation water containing 5 or 10 mg N $L^{-1}$ of ${NO_3}^-$ was continuously applied at 1 cm $day^{-1}$, and changes of ${NO_3}^-$, $Fe^{2+}$ and ${PO_4}^{3-}$ concentrations in soil solution at 5 and 10 cm depths beneath the soil surface were monitored as a function of time. Irrigation of rice paddy with water containing 5 mg N $L^{-1}$ of ${NO_3}^-$ led to reduced release of $Fe^{2+}$ and prevented solubilization of P at 5 cm depth beneath the soil surface. And application of irrigation water containing 10 mg N $L^{-1}$ of ${NO_3}^-$ could further suppress Fe reduction and solubilization of P through 10 cm depth soil layer beneath the surface. These results suggest that the introduction of high level ${NO_3}^-$ with irrigation water in rice paddy can strongly limit Fe reduction and P solubilization in root zone soil layer in addition to the excessive supply of N to rice plants.

담수상태의 토양이나 습지생태계에서 ${NO_3}^-$는 환원상태의 발달을 지연시키는 완충역할을 할 수 있다. 논토양에서 관개용수를 통하여 공급되는 ${NO_3}^-$가 Fe의 환원과 그에 따른 P의 가용화에 미치는 영향을 조사하였다. 관개용수중의 ${NO_3}^-$ 함량이 5 mg N $L^{-1}$ 수준일 경우 5 cm 깊이 토양에 도달하기 전에 대부분 탈질작용에 의해 제거되었으며, 5 cm 깊이 토양에서 일어나는 Fe의 환원과 P의 용출이 저해되었고 10 cm 깊이 토양의 환원현상에는 영향을 미치지 못하였다. ${NO_3}^-$ 함량이 10 mg N $L^{-1}$ 수준인 관개용수를 공급하였을 경우에는 10 cm 깊이 토양층까지 ${NO_3}^-$가 잔류 유입되었으며, Fe의 환원과 P의 용출을 현저히 억제하는 것으로 나타났다. 이상의 결과를 보면 관개용수를 통하여 ${NO_3}^-$를 포함한 질소가 과도하게 논토양으로 유입되면 질소과다현상을 유발할 뿐만 아니라 P의 가용화를 억제함으로써 인 결핍을 초래할 수도 있을 것이다.

Keywords

References

  1. Anderson, J.M. 1982. Effect of nitrate concentration in lake water on phosphate release from the sediment. Water Res. 16:1119-1126. https://doi.org/10.1016/0043-1354(82)90128-2
  2. Chung, J.B. 2009. Effect of nitrate on iron reduction and phosphorus release in flooded paddy soil. Korean J. Environ. Agric. 28:165-170. https://doi.org/10.5338/KJEA.2009.28.2.165
  3. Chung, J.B., B.J. Kim, and J.K. Kim. 1997. Water pollution in some agricultural areas along Nakdong river. Korean J. Environ. Agric. 16:187-192.
  4. Chung, J.B., B.J. Kim, J.K. Kim, and M.K. Kim. 1998. Water quality of streams in some agricultural areas of different agricultural practices along Nakdong river basin. Korean J. Environ. Agric. 17:140-144.
  5. Hidaka, S. 1993. Multi-utilization of water and irrigation water quality. Jpn. J. Soil Sci. Plant Nutr. 64:465-473.
  6. Kasuya, M. 1999. Denitrification of nitrate introduced by groundwater irrigation in rice paddy soil. Jpn. J. Soil Sci. Plant Nutr. 70:123-131.
  7. Lucassen, E.C.H.E.T., A.J.P. Smolders, A.L. van der Salm, and J. G. M. Roelofs. 2004. High groundwater nitrate concentrations inhibit eutrophication of sulphate-rich freshwater wetlands. Biogeochemistry 67:249-267. https://doi.org/10.1023/B:BIOG.0000015342.40992.cb
  8. Matocha, C.J., and M.S. Coyne. 2007. Short-term response of soil iron to nitrate addition. Soil Sci. Soc. Am. J. 71:108-117. https://doi.org/10.2136/sssaj2005.0170
  9. McBride, M.B. 1994. Environmental chemistry of soils. Oxford University Press, New York, USA.
  10. Miller, W.P., and D.M. Miller. 1987. A micro-pipette method for soil mechanical analysis. Commun. Soil Sci. Plant Anal. 18:1-15. https://doi.org/10.1080/00103628709367799
  11. Ministry of Environment. 2009. Environmental statistics (http://stat.me.go.kr/nesis/index.jsp). Ministry of Environment, Republic of Korea, Gwacheon, Korea.
  12. Murray, T.E. 1995. The corelation between iron sulfide precipitation and hypolimnetic phosphorus accumulation during one summer in a softwater lake. Can. J. Fish. Aquat. Sci. 52:1190-1194. https://doi.org/10.1139/f95-115
  13. Nelson, D.W., and L.E. Sommers. 1982. Total carbon, organic carbon, and organic matter. p. 539-579. In A. L. Page et al. (ed.) Methods of soil analysis. Part 2: Chemical and microbiological properties. SSSA, Madison, WI, USA.
  14. Olson, R.V., and R. Ellis, Jr. 1982. Iron. p. 301-312. In A. L. Page et al. (ed.) Methods of soil analysis. Part 2: Chemical and microbiological properties. SSSA, Madison, WI, USA.
  15. Ponnamperuma, F. N. 1972. The chemistry of submerged soils. Adv. Agron. 24:29-96. https://doi.org/10.1016/S0065-2113(08)60633-1
  16. RDA. 1988. Methods of soil chemical analysis. Rural Development Administration, Suwon, Korea.
  17. Roden, E.E., and J.W. Edmonds. 1997. Phosphate mobilization in iron-rich anaerobic sediments: microbial Fe(III) oxide reduction versus iron-sulfide formation. Arch. Hydrobiol. 139:347-378.
  18. Sallade, Y.E., and J.T. Sims. 1997. Phosphorus transformations in the sediments of Delaware's agricultural drainageways: II. Effect of reducing conditions on phosphorus release. J. Environ. Qual. 26:1579-1588.
  19. Sanyal, S.K., and S.K. De Datta. 1991. Chemistry of phosphorus transformations in soil. Adv. Soil Sci. 16:1-120. https://doi.org/10.1007/978-1-4612-3144-8_1
  20. Schlesinger, W.H. 1997. Biogeochemistry: An analysis of global change. 2nd ed. Elsevier Academic Press, Amsterdam, Netherlands.
  21. Smolders, A., and J.G.M. Roelofs. 1993. Sulphate-mediated iron limitation and eutrophication in aquatic ecosystems. Aquat. Bot. 46:247-253. https://doi.org/10.1016/0304-3770(93)90005-H
  22. Sposito, G. 1989. The chemistry of soils. Oxford University Press, New York, USA.
  23. Straub, K.L., W.A. Schonhuber, D.E.E. Buchholz-Cleven, and B. Schink. 2004. Diversity of ferrous iron-oxidizing, nitrate-reducing bacteria and their involvement in oxygenindependent iron cycling. Geomicrobiol. J. 21:371-378. https://doi.org/10.1080/01490450490485854
  24. Stucki, J.W., and W.L. Anderson. 1981. The quantitative assay of minerals for $Fe^{2+}$ and $Fe^{3+}$ using 1,10-phenanthroline : I. Sources of variability. Soil Sci. Soc. Am. J. 45:633-637. https://doi.org/10.2136/sssaj1981.03615995004500030039x
  25. Surridge, B.W.J., A.L. Heathwaite, and A.J. Baird. 2007. The release of phosphorus to pore water and surface water from river riparian sediments. J. Environ. Qual. 36:1534-1544. https://doi.org/10.2134/jeq2006.0490
  26. Weber, K.A., J. Pollock, K.A. Cole, S.M. O'Connor, L.A. Achenbach, and J.D. Coates. 2006. Anaerobic nitrateependent iron(II) bio-oxidation by a novel lithoautotrophic betaproteobacterium, strain 2002. Appl. Environ. Microbiol. 72:686-694. https://doi.org/10.1128/AEM.72.1.686-694.2006
  27. Young, E.O., and D.S. Ross. 2001. Phosphate release from seasonally flooded soils: A laboratory microcosm study. J. Environ. Qual. 30:91-101. https://doi.org/10.2134/jeq2001.30191x