Mitigation options for methane, nitrous oxide and nitric oxide emissions from agricultural ecosystems |
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| Authors: | Zheng Xunhua Wang Mingxing Wang Yuesi Shen Renxing Li Jing J Heyer M Koegge H Papen Jin Jisheng Li Laotu |
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| Institution: | LAPC; Institute of Atmospheric Physics; Chinese AcadeW of Sciences; Beijing 100029,LAPC; Institute of Atmospheric Physics; Chinese AcadeW of Sciences; Beijing 100029,LAPC; Institute of Atmospheric Physics; Chinese AcadeW of Sciences; Beijing 100029,LAPC; Institute of Atmospheric Physics; Chinese AcadeW of Sciences; Beijing 100029,LAPC; Institute of Atmospheric Physics; Chinese AcadeW of Sciences; Beijing 100029,Fraunhofer Institute for Atmospheric Environmental Research; Garmisch-P; Germany,Fraunhofer Institute for Atmospheric Environmental Research; Garmisch-P; Germany,Fraunhofer Institute for Atmospheric Environmental Research; Garmisch-P; Germany |
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| Abstract: | An experimental study on mitigation of greenhouse gas (CH4, N2O and NO) emission has been conducted in a typical cropping system of Southeast China for 4 years. By simultaneous measurement, the CH4, N2O and NO emission fluxes from rice-wheat rotation fields, effects of fertilization, water management, temperature and soil moisture were investigated. Temperature, fertilization and water status were found to be the key factors to regulate CH4, N2O and NO emissions. Based on the experimental results, some agricultural measures were recommended as technical options to mitigate greenhouse gas emissions from rice-wheat rotation ecosystems. These mitigation measures are reducing mineral N input, coupling organic manure with chemical fertilizers, applying fertilizers which release available N slowly during periods with intensive plant activity, and applying dry fermented organic manure and well management of water and fertilizer. |
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| Keywords: | Mitigation options Emission Greenhouse gases Ecosystems |
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