N2O and CH4 fluxes from typical upland fields in northeast China

Abstract

Abstract: Closed chamber measurements of N₂O and CH₄ fluxes from soybean and maize fields at Shenyang Ecological Experimental Station show that the emission of N₂O has significant diurnal and seasonal variations, and mainly occurs in the growing period of crops.N₂O is also released from soil during thawing and after harvest.In addition, the net emission of CH₄ from soybean and maize fields is very small, and hence, upland field as the sink or source of atmospheric CH₄ is not significant.

Key words: Nitrous oxide, Methane, Flux, extensive management, diversity, DGGE, soil bacterial and fungal communities, Phyllostachys edulis, cultivation history, available P, available K

Huang Guohong, Chen Guanxiong, Wu Jie, Huang Bin, Yu Kewei . N₂O and CH₄ fluxes from typical upland fields in northeast China[J]. Chinese Journal of Applied Ecology, 1995, 6(4): 383-386.

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N₂O and CH₄ fluxes from typical upland fields in northeast China

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