Measurements of Gases Emissions form Agricultural Soils and Their Characteristics with Chamber Technique: Emissions of NO and $N_2O$

챔버를 이용한 농작지로부터의 기체배출량의 측정과 배출특성연구: 일산화질소(NO)와 아질산가스($N_2O$)의 배출량산정

  • 김득수 (군산대학교 토목환경공학부 환경공학과 대기환경연구실)
  • Published : 2001.02.01

Abstract

During the growing season from June to August, 2000, the soil NO and $N_2$O fluxes were measured to elucidate characteristics of soil nitrogen emissions from different types of intensively managed agricultural soils at outskirts of Kunsan City, located in the western inland of Korea, Flux measurements were made using a closed chamber technique at two different agricultural fields; one was made from upland field, and the other from rice paddy field. The flux data from upland field were collected for both the green onion and soybean field. Concentrations of NO and $N_2$O inside a flux chamber ar 15 minute sampling interval were measured to determine their soil emissions. Either polyethylene syringes of teflon air bags were used for gas samples of $N_2$O and NO. The analysis of NO and $N_2$O was made using a chemiluminesence NO analyzer and GC-ECD, respectively no later than few hours after sample collection at laboratory. The gas fluxes were varied more than one standard deviation around their means. Relatively high soil gas emissions occurred in the aftermoon for both NO and $N_2$O. A sub-peak for $N_2$O emission was observed in the morning period, but not in the case of NO. NO emissions from rice paddy field were much less than those from upland site. It seems that water layer over the rice paddy field prevents gases from escaping from the soil surface covered with were during the irrigation and acts as a sink of these gases. The NO fluxes resulted from these field experiments were compared to those from grass soil and they were found to be much higher. Diurnal and daily variations of NO and $N_2$O emission were discussed and correlated with the effects of nitrogen fertilizer application on the increase of the level of soil nitrogen availability.

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References

  1. 한국대기보전학회지 v.13 no.6 질소산화물의 토양배출량 추정과 지구환경에 미치는 대기화학적 특성연구 김득수
  2. Atmos. Environ. v.21 Measurement of nitric oxide flux an upper coastal plain North Carolina agricultural soil Aneja, V.P.;W.P. Robarge;B.D. Holbrook
  3. NIAES Measuring fluxes of CH₄and N₂O between agricultural systems and the atmosphere. "CH₄and N₂O: Global Emissions and Controls from Rice Fields and Other Agricultural and Industrial Sources" Denmead, O.T.
  4. J. Geophys. Res. v.93 Emission of NO and deposition of O₃ in a tropical forest system Kaplan, W.A.(et al.)
  5. Atmos. Environ. v.28 Characterization of nitrogen oxide fluxes from soil of a follow field in the central piedmont North Carolina Kim, D.S.;V.P. Aneja;W.P. Robarge
  6. J. KAPRA no.E Natural emission of nitric oxide from agricultural soil of cornfield in eastern North Carolina Kim, D.-S.;P. Roelle;V.P. Aneja
  7. J. Geophys. Res. v.88 Nitrogen oxides in the troposphere: Global and regional budgets Logan, J.A.
  8. J. Geophys. Res. v.104 Laboratory Study of NO flux from agricultural soil : Effects of soil moisture, pH, and temperature Ormeci, B.;S.L. Sanin;J.J. Pierce
  9. J. Geophys. Res. v.92 Measurement of nitrogen oxides fluxes from soils: Intercomparison of enclosure and gradient measurement Techniques Parrish, D.D.;E.J. Williams;D.W. Fafey;S.C. Lin;F.C. Fehsenfeld
  10. J. Geophys. Res. v.104 Measurement of nitrogen oxide emissions form an agricultural soil with a dynamic chamber system Roelle, P.;V.P. Aneja;J.O. Connor;W. Robarge;D.-S. Kim;J.S. Levine
  11. Nutrient Cycling in Agroecosystems v.49 Nitrous oxide emissions from a rice paddy filed in Japan Tsuruta, T.;K. Kanda;T. Hirose
  12. Chemistry of the Natural Atmosphere Warneck, P.
  13. Nutrient Cycling Agroecosystems v.49 N₂O and NO emissions grassland soils after the application of cattle and swine excreta Watanabe, T.;T. Osada;M. Yoh;H. Tsuruta
  14. J. Geophys. Res. v.92 Determination of nitrogen oxide emission from soils : Results from a grassland site in Colorado Williams, E.J.;D.D. Parrish;F.C. Fehsenfeld
  15. J. Geophy. Res. v.100 Empirical model of global soilbiogenic NOX emissions Yienger, J.J.;H. Levy