Potential effect of fertilising and tilling on N2O emission from upland soils analyzed by DNDC model

Abstract

Abstract: A corn-rape and a soybean-winter wheat rotation field in Guizhou Province were selected to measure N₂O fluxes from sub-tropical upland soils.Based on the function of the DNDC model in well elucidating the seasonal changes of N₂O flux and the effects of fertilising and tilling on them,it was thus used to assess the potential effect of variations in application of manure and N-fertilisers,fertilising timing,N-fertiliser types,fertilising depth,and tillage on N₂O fluxes from sub-tropical upland soils.The results could be used to enact relevant policies,and to explore the potential for controlling N₂O emissions from agricultural soils by changing fertilising and tilling.

CLC Number:

X171.5

XU Wenbin, LIU Weiping, LIU Guangshen. Potential effect of fertilising and tilling on N₂O emission from upland soils analyzed by DNDC model[J]. Chinese Journal of Applied Ecology, 2001, 12(6): 917-922.

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Potential effect of fertilising and tilling on N₂O emission from upland soils analyzed by DNDC model

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