[논문]관개용수 중의 질산 이온이 논토양의 철 환원과 인 용출에 미치는 영향

김병호; 정종배

[국내논문] 관개용수 중의 질산 이온이 논토양의 철 환원과 인 용출에 미치는 영향
Effect of Nitrate in Irrigation Water on Iron Reduction and Phosphate Release in Anoxic Paddy Soil Condition 원문보기

韓國土壤肥料學會誌 = Korean journal of soil science & fertilizer, v.43 no.1, 2010년, pp.68 - 74

초록
AI-Helper

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.

Abstract ▼ AI-Helper

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.

Keyword

AI 본문요약
AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

제안 방법

In this study the effect of surface applied NO₃^- with irrigation water on the release of PO₄^3- in root zone soil layer was investigated using a rice paddy model system.
Two drain outlets were installed on the bottom of the cylinder. In this experiment, three experimental systems were constructed and used for the irrigation treatments of three different NO₃^- concentrations.

대상 데이터

The flooded rice paddy model consisted of a 10-L plastic cylinder with a sealed bottom, 24 cm long with a diameter of 23 cm (Fig. 2). The prepared soil was packed uniformly to a height of 15 cm from bottom of the cylinder.
The prepared soil was packed uniformly to a height of 15 cm from bottom of the cylinder. Two soil moisture samplers (Eijkelkamp, Giesbeek, The Netherlands) were placed at each depth of 5 and 10 cm beneath the soil surface for soil solution sample collection. A platinum electrode for redox potential measurement was placed at a depth of 10 cm beneath the soil surface.
02 M CaCl₂solution supplied from bottom of the soil column through drain outlets and 5 cm flooding depth above the soil surface was maintained with the drain outlets closed until the redox potential measured at 10 cm soil depth lowered below -200 mV. Irrigation waters containing three levels of NO₃^-(0, 5 and 10 mg N L^-1) were used in the experiment. Irrigation waters were prepared by dissolving a reagent grade KNO₃ in distilled water containing 0.

이론/모형

Soil pH was determined using a pH meter in deionized water with a 1:5 soil/solution ratio. Organic matter was determined by using Walkley and Black procedure (Nelson and Sommers, 1982). Total and available P contents were measured using perchloric acid digestion and Bray No.
1 procedures (RDA, 1988). Content of free iron oxides was measured using Na-dithionite-extraction method (Olson and Ellis, 1982). Soil particle size distribution was determined by micro-pipette method (Miller and Miller, 1987).
Content of free iron oxides was measured using Na-dithionite-extraction method (Olson and Ellis, 1982). Soil particle size distribution was determined by micro-pipette method (Miller and Miller, 1987).

참고문헌 (27)

Anderson, J.M. 1982. Effect of nitrate concentration in lake water on phosphate release from the sediment. Water Res. 16:1119-1126.

상세보기
Chung, J.B. 2009. Effect of nitrate on iron reduction and phosphorus release in flooded paddy soil. Korean J. Environ. Agric. 28:165-170.

원문보기 상세보기
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.

원문보기 상세보기
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.

원문보기 상세보기
Hidaka, S. 1993. Multi-utilization of water and irrigation water quality. Jpn. J. Soil Sci. Plant Nutr. 64:465-473.
Kasuya, M. 1999. Denitrification of nitrate introduced by groundwater irrigation in rice paddy soil. Jpn. J. Soil Sci. Plant Nutr. 70:123-131.
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.

상세보기
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.

상세보기
McBride, M.B. 1994. Environmental chemistry of soils. Oxford University Press, New York, USA.
Miller, W.P., and D.M. Miller. 1987. A micro-pipette method for soil mechanical analysis. Commun. Soil Sci. Plant Anal. 18:1-15.

상세보기
Ministry of Environment. 2009. Environmental statistics (http://stat.me.go.kr/nesis/index.jsp). Ministry of Environment, Republic of Korea, Gwacheon, Korea.
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.

상세보기
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.
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.
Ponnamperuma, F. N. 1972. The chemistry of submerged soils. Adv. Agron. 24:29-96.
RDA. 1988. Methods of soil chemical analysis. Rural Development Administration, Suwon, Korea.
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.

상세보기
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.

상세보기
Sanyal, S.K., and S.K. De Datta. 1991. Chemistry of phosphorus transformations in soil. Adv. Soil Sci. 16:1-120.
Schlesinger, W.H. 1997. Biogeochemistry: An analysis of global change. 2nd ed. Elsevier Academic Press, Amsterdam, Netherlands.
Smolders, A., and J.G.M. Roelofs. 1993. Sulphate-mediated iron limitation and eutrophication in aquatic ecosystems. Aquat. Bot. 46:247-253.

상세보기
Sposito, G. 1989. The chemistry of soils. Oxford University Press, New York, USA.
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.

상세보기
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.

상세보기
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.

상세보기
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.

상세보기
Young, E.O., and D.S. Ross. 2001. Phosphate release from seasonally flooded soils: A laboratory microcosm study. J. Environ. Qual. 30:91-101.

상세보기

저자의 다른 논문 :

활용도 분석정보

상세보기

다운로드

내보내기

활용도 Top5 논문

해당 논문의 주제분야에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증