A - Papers appearing in refereed journals
Zhang, Y., Ding, H., Zheng, X., Ren, X., Cardenas, L. M., Carswell, A. M. and Misselbrook, T. H. 2018. Land-use type affects N2O production pathways in subtropical acidic soils. Environmental Pollution. 237, pp. 237-243. https://doi.org/10.1016/j.envpol.2018.02.045
Authors | Zhang, Y., Ding, H., Zheng, X., Ren, X., Cardenas, L. M., Carswell, A. M. and Misselbrook, T. H. |
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Abstract | The change in land-use from woodland to crop production leads to increased nitrous oxide (N2O)emissions. An understanding of the main N2O sources in soils under a particular land can be a useful tool in developing mitigation strategies. To better understand the effect of land-use on N2O emissions, soils were collected from 5 different land-uses in southeast China: shrub land (SB), eucalyptus plantation (ET), sweet potato farmland (SP), citrus orchard (CO) and vegetable growing farmland (VE). A stable isotope experiment was conducted incubating soils from the different land use types at 60% water holding capacity (WHC), using 15NH4NO3 and NH4 15NO3 to determine the dominant N2O production pathway for the different land-uses. The average N2O emission rates for VE, CO and SP were 5.30, 4.23 and 3.36 mgN kg1 dry soil d1, greater than for SB and ET at 0.98 and 1.10 mgN kg1 dry soil d1, respectively. N2O production was dominated by heterotrophic nitrification for SB and ET, accounting for 51 and 50% of N2O emissions, respectively. However, heterotrophic nitrification was negligible (<8%) in SP, CO and VE,where autotrophic nitrification was a primary driver of N2O production, accounting for 44, 45 and 66% |
Keywords | Nitrous oxide ; Heterotrophic nitrification ; Autotrophic nitrification ; Denitrification; 15N; Stable isotope |
Year of Publication | 2018 |
Journal | Environmental Pollution |
Journal citation | 237, pp. 237-243 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.envpol.2018.02.045 |
Open access | Published as non-open access |
Funder | BBSRC Newton funding |
Funder project or code | UK - China Virtual Joint Centre for Improved Nitrogen Agronomy (CINAG) |
Output status | Published |
Publication dates | |
Online | 24 Feb 2018 |
Publication process dates | |
Accepted | 15 Feb 2018 |
Publisher | Elsevier Sci Ltd |
Copyright license | CC BY |
ISSN | 0269-7491 |
Permalink - https://repository.rothamsted.ac.uk/item/84742/land-use-type-affects-n2o-production-pathways-in-subtropical-acidic-soils
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