Relationships between soil water content and N2O production

Abstract

Abstract: Studies on the effect of soil water content on N₂O production and emission indicated that different soil water contents induced different N₂O fluxes. It was demonstrated by the technique of acetylene inhibition, that around the period of sowing when the climate was dry and soil water content was low,N₂O production came from nitrification; after raining when soil water content was high, N₂O production mainly came from denitrification; and at medium water content, a half of N₂O emission came from nitrification, and another half from denitrification. It was suggested that the ways of N₂O production from upland fields mainly depended on the control and regulation of soil water.

Key words: Soil, Water content, N₂O production, Upland field, sub-high temperature, cucumber, photosynthetic enzyme, high temperature, photosynthesis

Huang Guohong, Chen Guanxiong, Han Bin, Oswald Van Cleemput. Relationships between soil water content and N₂O production[J]. Chinese Journal of Applied Ecology, 1999, 10(1): 53-56.

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Relationships between soil water content and N₂O production

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