Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Changes in potential denitrification-derived N2O emissions following conversion of grain to greenhouse vegetable cropping systems

    Access Status
    Fulltext not available
    Authors
    Cao, J.
    Lee, Juhwan
    Six, J.
    Yan, Y.
    Zhang, F.
    Fan, M.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Cao, J. and Lee, J. and Six, J. and Yan, Y. and Zhang, F. and Fan, M. 2015. Changes in potential denitrification-derived N2O emissions following conversion of grain to greenhouse vegetable cropping systems. European Journal of Soil Biology. 68: pp. 94-100.
    Source Title
    European Journal of Soil Biology
    DOI
    10.1016/j.ejsobi.2015.03.009
    ISSN
    1164-5563
    Faculty
    Faculty of Science and Engineering
    School
    School of Molecular and Life Sciences (MLS)
    URI
    http://hdl.handle.net/20.500.11937/75595
    Collection
    • Curtin Research Publications
    Abstract

    © 2015 Elsevier Masson SAS. In China, considerable cropland previously under grain production has been rapidly converted to greenhouse vegetable production by farmers since 1980s. Vegetable crops generally require higher nitrogen (N) inputs from manure amendments and more frequent tillage and irrigation operations compared to grain crops. Here, we compared potential denitrification-derived N<inf>2</inf>O emissions across the soil profile (0-90cm depth) between grain and greenhouse vegetable fields. Denitrification enzyme activity (DEA) was assessed in the top 0-15cm soil layer. Soil samples from five wheat (Triticum aestivum L.) - maize (Zea mays L.) fields, paired with adjacent vegetable greenhouse fields, were collected across typical vegetable production regions. Conversion from the grain fields to the greenhouse vegetable fields led to greater potential denitrification-derived N<inf>2</inf>O emissions in the 0-15 and 15-30cm depths, respectively, with 4 and 3 times higher cumulative emissions over the 10-day incubation. Continuous manure amendments and chemical N input increased water extractable organic carbon and nitrate concentrations, which significantly enhanced potential denitrification-derived N<inf>2</inf>O production in the 0-30cm soil depth of vegetable crop fields. The differences in microbial community for the two cropping systems did not seem to affect the surface N<inf>2</inf>O production potential since denitrification enzyme activity were not significantly different between the two production systems. There was a small to negligible potential N<inf>2</inf>O flux in 30-90cm soil depths for both production systems because of limited carbon availability and microbial activity. Managing surface labile carbon and mineral N pool may be critical in reducing regional N<inf>2</inf>O emissions in China's greenhouse vegetable production systems.

    Related items

    Showing items related by title, author, creator and subject.

    • Potentials to mitigate greenhouse gas emissions from Swiss agriculture
      Necpalova, M.; Lee, Juhwan ; Skinner, C.; Büchi, L.; Wittwer, R.; Gattinger, A.; van der Heijden, M.; Mäder, P.; Charles, R.; Berner, A.; Mayer, J.; Six, J. (2018)
      © 2018 Elsevier B.V. There is an urgent need to identify and evaluate management practices for their biophysical potential to maintain productivity under climate change while mitigating greenhouse gas (GHG) emissions from ...
    • Effects of irrigation rate on the growth, yield, nutritive value, and water use efficiency of Carrot (Daucus carota) and Broccoli (Brasiola oleracea)
      Ludong, Daniel Peter M. (2008)
      The effects of differential irrigation treatments on the water use of broccoli (c.v. Indurance) and carrots (c.v. Stefano) were studied in the rainy, winter season from July to September 2006 and in the dry, summer period ...
    • Decreasing the carbon footprint of an intensive rice-based cropping system using conservation agriculture on the Eastern Gangetic Plains
      Alam, K.; Bell, R.; Biswas, Wahidul (2019)
      Emerging conservation agriculture (CA) technologies are being applied in rice-upland cropping systems and their potential to mitigate greenhouse gas emissions of the whole rice-based cropping systems could be significant ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.