|
环境科学学报(英文版) 2008
Nitrous oxide emissions in nonflooding period from fallow paddy fields
Keywords: nitrous oxide emission,cracks,soil drying,paddy soil Abstract: The study was conducted to investigate the N2O emissions and dissolved N2O in the leachate during the nonflooding period in nongrowing paddy fields.Three kinds of paddy soils were repacked to soil columns and were supersaturated with water initially and dried gradually in a greenhouse to attain the N2O emissions flux during the incubation.Soils with the texture of silty clay-loam (Q and H) produced cracks during the drying of soil,but soil with the texture of silty loam (X) did not form the cracks.Cracked s...
|