Sami Ullah

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Publications

  1. 2021
  2. E-pub ahead of print

    Chronic atmospheric reactive nitrogen deposition suppresses biological nitrogen fixation in peatlands

    Sami Ullah, 4 Jan 2021, In: Environmental Science and Technology.

    Research output: Contribution to journal › Article › peer-review

  3. 2020
  4. Published

    Concurrent measurement of nitrate and ammonium in water and soil samples using ion‐selective electrodes: Tackling sensitivity and precision issues

    Sami Ullah, 5 Dec 2020, In: Analytical Sciences Advances.

    Research output: Contribution to journal › Article › peer-review

  5. Published

    Alleviation of nitrogen stress in rice (Oryza sativa) by ceria nanoparticles

    Peng Zhang, Zhiling Guo, Sami Ullah & Iseult Lynch, 1 Oct 2020, In: Environmental Science: Nano. 7, 10, p. 2930-2940 11 p.

    Research output: Contribution to journal › Article › peer-review

  6. Published

    The method controls the story - Sampling method impacts on the detection of pore-water nitrogen concentrations in streambeds

    Sophie Comer-Warner, Phillip Blaen, Megan Klaar, Sami Ullah, Nicholas Kettridge, Sandy Milner & 2 others, David Hannah & Stefan Krause, 20 Mar 2020, In: Science of the Total Environment. 709, 19 p., 136075.

    Research output: Contribution to journal › Review article › peer-review

  7. Published

    Seasonal variability of sediment controls of nitrogen cycling in an agricultural stream

    Sophie Comer-Warner, Sami Ullah, Nicholas Kettridge & Stefan Krause, Mar 2020, In: Biogeochemistry. 148, 1, p. 31-48 18 p.

    Research output: Contribution to journal › Article › peer-review

  8. Accepted/In press

    Heavy metal pollution increases CH4 and decreases CO2 emissions due to soil microbial changes in a mangrove wetland: Microcosm experiment and field examination

    Jiaojiao Ma, Sami Ullah, 2020, (Accepted/In press) In: Chemosphere. 128735.

    Research output: Contribution to journal › Article › peer-review

  9. 2019
  10. Published

    Reply to ‘Pseudoreplication and greenhouse-gas emissions from rivers'

    Sophie Comer-Warner, Sami Ullah, Nicholas Kettridge, David Hannah & Stefan Krause, Dec 2019, In: Nature Communications.

    Research output: Contribution to journal › Article › peer-review

  11. Published

    Seasonal variability of sediment controls of carbon cycling in an agricultural stream

    Sophie Comer-Warner, Sami Ullah, Nicholas Kettridge & Stefan Krause, 20 Oct 2019, In: Science of the Total Environment. 688, p. 732-741 10 p.

    Research output: Contribution to journal › Article › peer-review

  12. Published

    Revealing chlorinated ethene transformation hotspots in a nitrate impacted hyporheic zone

    Stefan Krause, Sami Ullah, Nigel Cassidy, 15 Sep 2019, In: Water Research. 161, p. 222-231 10 p.

    Research output: Contribution to journal › Article › peer-review

  13. Published

    Addendum: Thermal sensitivity of CO2 and CH4 emissions varies with streambed sediment properties

    Sophie Comer-Warner, Paul Romeijn, Sami Ullah, Nicholas Kettridge, David Hannah & Stefan Krause, 9 Jul 2019, In: Nature Communications. 10, 1, 1 p., 3093 .

    Research output: Contribution to journal › Article › peer-review

  14. Published

    Biological nitrogen fixation in peatlands: comparison between acetylene reduction assay and 15N2 assimilation methods

    Sami Ullah, 1 Apr 2019, In: Soil Biology and Biochemistry. 131, p. 157-165 9 p.

    Research output: Contribution to journal › Article › peer-review

  15. Published

    Streambed organic matter controls on carbon dioxide and methane emissions from streams

    Sophie Comer-Warner, Sami Ullah, David Hannah & Stefan Krause, 5 Mar 2019, In: Environmental Science and Technology. 53, 5, p. 2364-2374 11 p.

    Research output: Contribution to journal › Article › peer-review

  16. Published

    China’s ineffective plastic solution to haze

    Sami Ullah, 2019, In: Science.

    Research output: Contribution to journal › Article › peer-review

  17. 2018
  18. Published

    Simultaneous detection of ammonium and nitrate in environmental samples using on ion-selective electrode and comparison with portable colorimetric assays

    Sami Ullah, 19 Oct 2018, In: Sensors (Switzerland). 18, 10

    Research output: Contribution to journal › Article › peer-review

  19. Published

    Thermal sensitivity of CO2 and CH4 emissions varies with streambed sediment properties

    Sophie Comer-Warner, Sami Ullah, Nicholas Kettridge, David Hannah & Stefan Krause, 18 Jul 2018, In: Nature Communications. 9, 1, 2803.

    Research output: Contribution to journal › Article › peer-review

  20. Published

    Erratum: author correction: nitrogen-rich organic soils under warm well-drained conditions are global nitrous oxide emission hotspots (Nature communications (2018) 9 1 (1135))

    Sami Ullah & 16 others, , 26 Apr 2018, In: Nature Communications. 9, 1, 1 p., 1748 .

    Research output: Contribution to journal › Comment/debate › peer-review

  21. Published

    Nitrogen-rich organic soils under warm well-drained conditions are global nitrous oxide emission hotspots

    Sami Ullah & 16 others, , 19 Mar 2018, In: Nature Communications. 9, 1135.

    Research output: Contribution to journal › Article › peer-review

  22. Published

    Natural attenuation of chlorinated ethenes in hyporheic zones: A review of key biogeochemical processes and in-situ transformation potential

    Stefan Krause, Sami Ullah, Nigel Cassidy, 1 Jan 2018, In: Water Research. 128, p. 362-382 21 p.

    Research output: Contribution to journal › Review article › peer-review

  23. 2017
  24. Published

    Soil greenhouse gas fluxes, environmental controls and the partitioning of N2O sources in UK natural and semi-natural land use types.

    Sami Ullah, 25 Sep 2017, In: Journal of Geophysical Research: Biogeosciences.

    Research output: Contribution to journal › Article › peer-review

  25. Published

    Single strip solid contact ion selective electrodes on a pencil-drawn electrode substrate

    Sami Ullah, 2017, In: Analytical Methods. 9, 7, p. 1213-1220 8 p.

    Research output: Contribution to journal › Article › peer-review

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