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Fallow paddies experience natural flooding and draining water status due to rainfall and evaporation, which could induce considerable nitrous oxide (NO) emissions and need to be studied specially. In this study, intact soil columns were collected from a fallow paddy field and the flooding-draining process was simulated in a microcosm experiment. The results showed that both NO concentrations in the soil and NO emission rates were negligible during flooding period, which were greatly elevated by draining the fallow paddy soil. The remarkable NO concentrations in the soil and NO emission/h during draining both had significant relationships with the Arch-amoA gene (P < 0.01) but not the Bac-amoA, narG, nirK, nirS, and nosZ genes, indicating that the ammonium-oxidizing archaea (AOA) might be the important players in soil NO net production and emissions after draining. Moreover, we observed that NO concentrations in the upper soil layers (0-10 cm) were not significantly different from that in the 10-20 cm layer under draining condition (P > 0.05). However, the number of AOA and the nitrification substrate (NH-N) in the 0-10 cm layer were significantly higher than in the 10-20 cm layer (P < 0.01), indicating NO production in the 0-10 cm layer might be higher than the measured concentration and would contribute considerably to NO emissions as shorter distance of gas diffusion to the soil surface.
This article was published in the following journal.
Name: Scientific reports
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This randomized trial aimed to compare conventional draining seton with or without rerouting of the fistula track in treatment of complex anal fistula
Describe the patient population and bacterial microbiology of pediatric patients presenting with spontaneous draining acute otitis media
To investigate the clinical efficacy of certolizumab pegol for fistula closure in Crohn's disease subjects with active draining fistulas.
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Radon. A naturally radioactive element with atomic symbol Rn, atomic number 86, and atomic weight 222. It is a member of the noble gas family and released during the decay of radium and found in soil. There is a link between exposure to radon and lung cancer.
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Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...