Assessment of German nitrous oxide emissions using empirical modelling approaches
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作者:
Dechow, Rene
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Johann Heinrich von Thunen Inst, Inst Agr Climate Res, D-38116 Braunschweig, GermanyJohann Heinrich von Thunen Inst, Inst Agr Climate Res, D-38116 Braunschweig, Germany
Dechow, Rene
[1
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Freibauer, Annette
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Johann Heinrich von Thunen Inst, Inst Agr Climate Res, D-38116 Braunschweig, GermanyJohann Heinrich von Thunen Inst, Inst Agr Climate Res, D-38116 Braunschweig, Germany
Freibauer, Annette
[1
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机构:
[1] Johann Heinrich von Thunen Inst, Inst Agr Climate Res, D-38116 Braunschweig, Germany
Direct nitrous oxide (N2O) emissions from agricultural soils contribute considerably to anthropogenic GHG emissions. Albeit a key source of emissions in many countries, direct N2O emissions are still calculated and reported to the United Nations Convention on Climate Change using default emission factors defined in the IPCC guidelines (IPCC 1996, 2006). It is known that processes controlling production and transport of N2O are highly sensitive to environmental conditions defined by weather, soil and management. The accuracy of N2O emission budgets and the efficiency of mitigation can be improved if those dependencies are considered with regionalized emission factors. In this study an empirical method originating from soft computing techniques based on measured data is developed and applied to quantify direct N2O emissions from agricultural soils at field and national level in Germany between 1990 and 2005. The method is used to derive maps of emission factor distribution of direct N2O emissions of agricultural land in Germany. Model results are compared with alternative empirical approaches from literature. Results from developing empirical models show that grassland and cropland have to be differentiated according to the key controls driving N2O emissions. N2O emissions of German croplands are highly influenced by climatic conditions and soil properties. The variability of N2O fluxes on grasslands is mainly driven by the fertilizer N applied. The model comparison using measured European N2O emissions exhibits profound discrepancies between the models used on a regional scale. The nationwide budgets derived span a narrow range of -8 to 28% relative to direct N2O emissions quantified by the German national inventory report. The emission factor of German agriculture estimated by the developed model is 0.91% of fertilizer N applied.
机构:
Univ Petr & Energy Studies, Dept Hlth Safety Environm & Civil Engn, Dehra Dun 248007, IndiaUniv Petr & Energy Studies, Dept Hlth Safety Environm & Civil Engn, Dehra Dun 248007, India
Abbasi, Tabassum
Abbasi, Tasneem
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Pondicherry Univ, Ctr Pollut Control & Environm Engn, Chinakalapet 605014, Puducherry, IndiaUniv Petr & Energy Studies, Dept Hlth Safety Environm & Civil Engn, Dehra Dun 248007, India
Abbasi, Tasneem
Luithui, Chirchom
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Pondicherry Univ, Ctr Pollut Control & Environm Engn, Chinakalapet 605014, Puducherry, IndiaUniv Petr & Energy Studies, Dept Hlth Safety Environm & Civil Engn, Dehra Dun 248007, India
Luithui, Chirchom
Abbasi, Shahid Abbas
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Pondicherry Univ, Ctr Pollut Control & Environm Engn, Chinakalapet 605014, Puducherry, IndiaUniv Petr & Energy Studies, Dept Hlth Safety Environm & Civil Engn, Dehra Dun 248007, India
机构:
Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
Univ Chinese Acad Sci, Beijing, Peoples R ChinaChinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
Chen, Zengming
Ding, Weixin
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Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R ChinaChinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
Ding, Weixin
Luo, Yiqi
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Univ Oklahoma, Dept Bot & Microbiol, Norman, OK 73019 USAChinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
Luo, Yiqi
Yu, Hongyan
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Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R ChinaChinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
Yu, Hongyan
Xu, Yehong
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Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
Univ Chinese Acad Sci, Beijing, Peoples R ChinaChinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
机构:
Lund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Stockholm Vatten, SE-10636 Stockholm, SwedenLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Lindblom, E.
Arnell, M.
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Lund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
SP Tech Res Inst Sweden, Gjuterigatan 1D, SE-58273 Linkoping, SwedenLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Arnell, M.
Flores-Alsina, X.
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Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, DenmarkLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Flores-Alsina, X.
Stenstrom, F.
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Lund Univ, Water & Environm Engn, Dept Chem Engn, POB 118, SE-22100 Lund, Sweden
VA Ingenjorerna AB, Tradgardsgatan 12, SE-70212 Orebro, SwedenLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Stenstrom, F.
Gustavsson, D. J. I.
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VA SYD, POB 191, SE-20121 Malmo, Sweden
Sweden Water Res, Ideon Sci Pk,Scheelevagen 15, SE-22370 Lund, SwedenLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Gustavsson, D. J. I.
Yang, J.
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Royal Inst Technol KTH, Dept Sustainable Dev Environm Sci & Engn, Teknikringen 76, SE-10044 Stockholm, Sweden
Swedish Environm Res Inst IVL, Valhallavagen 81, SE-10031 Stockholm, SwedenLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
Yang, J.
Jeppsson, U.
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Lund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, SwedenLund Univ, Dept Biomed Engn, Div Ind Elect Engn & Automat IEA, POB 118, SE-22100 Lund, Sweden
机构:
Royal Inst Technol KTH, Div Energy & Furnace Technol, S-10044 Stockholm, SwedenRoyal Inst Technol KTH, Div Energy & Furnace Technol, S-10044 Stockholm, Sweden
Yang, WH
Blasiak, W
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Royal Inst Technol KTH, Div Energy & Furnace Technol, S-10044 Stockholm, SwedenRoyal Inst Technol KTH, Div Energy & Furnace Technol, S-10044 Stockholm, Sweden