한국토양비료학회지 (Korean Journal of Soil Science and Fertilizer)

  • 제39권5호
  • /
  • Pages.253-258
  • /
  • 2006
  • /
  • 0367-6315(pISSN)
  • /
  • 2288-2162(eISSN)
한국토양비료학회 (Korean Society of Soil Science and Fertilizer)
권호 표지

온실가스 배출 파라메타를 이용한 고추밭 토양의 N2O 배출 예측

Predicting N2O Emission from Upland Cultivated with Pepper through Related Soil Parameters

  • 김건엽 (농촌진흥청 농업과학기술원 환경생태과) ;
  • 송범헌 (충북대학교 식물자원학과) ;
  • 현병근 (농촌진흥청 농업과학기술원 환경생태과) ;
  • 심교문 (농촌진흥청 농업과학기술원 환경생태과) ;
  • 이정택 (농촌진흥청 농업과학기술원 환경생태과) ;
  • 이종식 (농촌진흥청 농업과학기술원 환경생태과) ;
  • 김원일 (농촌진흥청 농업과학기술원 환경생태과) ;
  • 신중두 (농촌진흥청 농업과학기술원 환경생태과)
  • Kim, Gun-Yeob (National Institute of Agricultural Science and Technology, RDA) ;
  • Song, Beom-Heon (Department of Agronomy, College of Agriculture, Chungbuk National University) ;
  • Hyun, Byung-Keun (National Institute of Agricultural Science and Technology, RDA) ;
  • Shim, Kyo-Moon (National Institute of Agricultural Science and Technology, RDA) ;
  • Lee, Jeong-Taek (National Institute of Agricultural Science and Technology, RDA) ;
  • Lee, Jong-Sik (National Institute of Agricultural Science and Technology, RDA) ;
  • Kim, Won-Il (National Institute of Agricultural Science and Technology, RDA) ;
  • Shin, Joung-Du (National Institute of Agricultural Science and Technology, RDA)
  • 투고 : 2006.06.16
  • 심사 : 2006.07.25
  • 발행 : 2006.10.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

수원시에 위치한 농업과학기술원 시험포장인 고평통의 식양토와 본량통의 사양토에서 고추를 재배하였다. 식양토와 사양토의 2개 토성을 대상으로 토양 검정한 NPK 시비에 돈분퇴비 $25Mg\;ha^{-1}$를 각 각 시용하였다. 토양의 $N_2O$ 배출량 측정을 한 후 동시에 $N_2O$ 배출에 기여하는 토양수분, 무기태 질소, 지온 등을 측정하였고, 토양수분은 관수시점인 -50 kPa내의 범위로 한정하여 토양의 $N_2O$ 배출량을 실제 측정하였다. 온실가스 배출량을 예측하기 위해 영국의 경험 모델을 이용하여 $N_2O$ 배출의 예측값과 실측값을 비교 분석하였다. $N_2O$ 배출의 실측량과 무기태 질소($NO_3{^-}+NH_4{^+}$)의 관계에서 무기태 질소($NO_3{^-}-N+NH_4{^+}-N$)가 $10mg\;kg^{-1}$ 이하에서 $N_2O$ 배출량이 $1{\sim}10g\;N_2O-N\;ha^{-1}day^{-1}$로 나타나 $N_2O$ 배출에 대한 무기태질소 ($NO_3{^-}-N+NH_4{^+}-N$)의 한계선을 구분할 수 있었으며, 실측값인 토양온도와 WFPS(water filled pore space) 관계에서도 경험 모델의 배출 추정식인 (% WFPS)+{$2{\times}$토양온도($^{\circ}C$)}=90, (% WFPS)+{$2{\times}$토양온도($^{\circ}C$)}=105를 증명 하였다. $N_2O$ 배출의 실측량과 예측량을 1:1 대응한 결과, 식양토와 사양토 각 r=0.962, r=0.974로 나타났다. 고추밭의 $N_2O$ 배출량을 분석한 결과, 예측량과 작기 기간 전체 $N_2O$ 배출량의 비교에서 예측량은 식양토에서 12.2%가 낮게 평가 되었고, 사양토에서는 30%가 높게 평가 되었다. 그리고 토양 파라메타 분석 동시에 1주일에 1회 $N_2O$가스를 포집한 $N_2O$ 배출량에서는 식양토 27.1, 사양토 14.7%가 높게 평가 되었다. 향후 경험 모델의 정밀도를 높이기 위해서는 국내 작물재배환경에 맞는 파라메타의 수정이 필요하며 다양한 작물을 대상으로 연구가 있어야 할 것으로 생각한다.

An empirical model of nitrous oxide emission from agricultural soil has been applied. It is based on the relationship between $N_2O$ and three soil parameters, soil mineral N(ammonium plus nitrate) content in the topsoil(0-15cm), soil water-field pore space, and soil temperature, determined in a study on clay loam and sandy loam at the pepper field in 2004. For comparisons between estimated and observed values of $N_2O$ emissions in the pepper field, it was investigated that $N_2O$ amount in the clay loam and sandy loam were overestimated as 12.2% and less estimated as 30%, respectively. However, $N_2O$ emissions were overestimated as 27.1% in the clay loam and 14.7% in the sandy loam from $N_2O$ gas samples collected once a week at the same time analyzing soil parameters. This modelling approach, based as it is well established and widely used soil measurements, has the potential to provide flux estimates from a much wider range of agricultural sites than would be possible by direct measurement of $N_2O$ emissions.

키워드

참고문헌

  1. Bouwman, A.F. 1996. Direct emissions of nitrous oxide from agricultural soils. Nutrient Cycling in Agroecosystems. 46:53-70 https://doi.org/10.1007/BF00210224
  2. Davidson, E.A. 1991. Fluxes of nitrous oxide and nitric oxide from terrestrial ecosystems. In: Microbial Production and Consumption of Greenhouse Gases: Methane, Nitrous Oxide and Halomethanes(eds Rogers JE, Whitman WB), pp.219-235. American Soc. of Microbiol., Washington, D.C.
  3. Denmead, O.T. 1979. Chamber systems for measuring nitrous oxide emission from soils in the field. Soil Sci. Soc. of America J. 43:89-95 https://doi.org/10.2136/sssaj1979.03615995004300010016x
  4. Engel, T.H., E. Priesack. 1993. Expert-N, a building block system of nitrogen models as a resource for advice, research, water management and policy, In: Integrated Soil and Sediment Research: a Basis for Protection (eds Eijsackers HJP, Hamers T), pp.503-507. Kluwer, Dordrecht
  5. F. Conen, K.E. Dobbie, and K.A. Smith. 2000. Predicting $N_{2}O$ emissions from agricultural land through related soil parameters. Global Change Biology. 6:417-426 https://doi.org/10.1046/j.1365-2486.2000.00319.x
  6. Frolking, S.E., A.R. Mosier, and D.S. Ojima. 1998. Comparison of $N_{2}O$ emissions from soils at three temperate agricultural sites: simulations of year-round measurements by four models. Nutrient Cycling in Agroecosystems. 52:77-105 https://doi.org/10.1023/A:1009780109748
  7. IPCC(Intergovernmental Panel on Climate Change). 1996. Revised IPCC guideline for national greenhouse gas inventories: Reference Manual, revised in 1996, IPCC
  8. IPCC(Intergovernmental Panel on Climate Change). 1997. Greenhouse gas emissions from agricultural soils. In: Greenhouse Gas Inventory Reference Manual; Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories, Vol.3, Section 4.5 Agriculture(eds Houghton JT et al.), IPCC/OECD/IEA. UK Meteorological Office, Bracknell, UK
  9. Li, C., S. Frolking, and T. Frolking. 1992. A model of nitrous oxide evolution from soil driven by rainfall events: 1. Model structure and sensitivity. J. of Geophysical Res. 97:9759-9776 https://doi.org/10.1029/92JD00509
  10. Parton, W.J., A.R. Mosier, D.S. Ojima, D.W. Valentine, D.S. Schimel, K. Weier, and A.E. Kulmala. 1996. Generalized model for $N_{2}$ and $N_{2}O$ production from nitrification and denitrification. Global Biochem. Cycles. 10:401-412 https://doi.org/10.1029/96GB01455
  11. Potter, C.S., R.H. Riley, and S.A. Klooster. 1997. Simulation modelling of nitrogen trace gas emissions along an age gradient of tropical forest soils. Ecological Modelling. 97:179-196 https://doi.org/10.1016/S0304-3800(96)01903-5
  12. Powlson, D.S., P.G. Saffigna, and M. Kragt-Cottaar. 1998. Denitrification at sub-optimal temperatures in soils from different climatic zones. Soil Biol. and Biochem. 20:719-723 https://doi.org/10.1016/0038-0717(88)90157-5
  13. Prinn, R.D., R. Cunnold, P. Simmonds, F. Alyea, A. Crawford, R. Fraser, and R. Rosen. 1990. Atmospheric emissions and trends of nitrous oxide deduced from 10 years of ALEGAGE data. J. Geophys. Res. 95:18369-18385 https://doi.org/10.1029/JD095iD11p18369
  14. Ryden, J.C. 1983. Denitrification loss from grassland soil in the field receiving different rates of nitrogen as ammonium nitrate. J. of Soil Sci. 34:355-365 https://doi.org/10.1111/j.1365-2389.1983.tb01041.x
  15. Smith, K.A., P.E. Thomson, H. Clayton, I.P. McTaggart, and F. Conen. 1998. Effects of temperature, water content and nitrogen fertilisation on emissions of nitrous oxide by soils. Atmospheric Environ. 32:3301-3309 https://doi.org/10.1016/S1352-2310(97)00492-5
  16. Velthof, G., J.G. Koops., J.H. Duyzer, and O. Oenema. 1998. Prediction of nitrous oxide fluxes from managed grassland on peat soil using a simple empirical model. Netherlands J. of Agr. Sci. 44:339-356
  17. Webb, R.A. 1972. Use of boundary line analysis of biological data. J. of Horticultural Sci. 47:309-319 https://doi.org/10.1080/00221589.1972.11514472
  18. Weier, K.L., J.W. Doran, J.F. Power, and D.T. Walters. 1993. Denitrification and the dinitrogen/nitrous oxide ratio as affected by soil water, available carbon, and nitrate. Soil Sci. Soc. of Am. J. 57:66-72 https://doi.org/10.2136/sssaj1993.03615995005700010013x