Per Lennart Ambus

Search results

• 2024

  Arctic Tundra Plant Dieback Can Alter Surface N₂O Fluxes and Interact With Summer Warming to Increase Soil Nitrogen Retention

  Xu, W., Elberling, B., Li, D. & Ambus, PL., 2024, In: Global Change Biology. 30, 10, e17549.

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

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• Carbon dioxide exchange and temperature sensitivity of soil respiration along an elevation gradient in an arctic tundra ecosystem

  Xu, W., Westergaard-Nielsen, A., Michelsen, A. & Lennart Ambus, P., 2024, In: Geoderma. 452, 11 p., 117108.

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• Long-term summer warming reduces post-fire carbon dioxide losses in an arctic heath tundra

  Xu, W., Elberling, B. & Ambus, P. L., 2024, In: Agricultural and Forest Meteorology. 344, 10 p., 109823.

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  1 Citation (Scopus)

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• Newly plant-derived carbon in the deeper vadose zone of a sandy agricultural soil does not stimulate denitrification

  Xu, W. & Ambus, P. L., 2024, In: Geoderma. 448, 9 p., 116936.

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• Nitrogen immobilization could link extreme winter warming events to Arctic browning

  Rasmussen, L. H., Danielsen, B. K., Elberling, B., Ambus, P., Björkman, M. P., Rinnan, R. & Andresen, L. C., 2024, In: Soil Biology and Biochemistry. 191, 11 p., 109319.

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  1 Citation (Scopus)

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• Regional emissions of soil greenhouse gases across Tibetan alpine grasslands

  Wang, P., Wang, J., Elberling, B., Ambus, P., Li, Y., Pan, J., Zhang, R., Guo, H. & Niu, S., 2024, In: Geoderma. 443, 10 p., 116843.

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  1 Citation (Scopus)

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• Spatial-temporal patterns of foliar and bulk soil ¹⁵N isotopic signatures across a heterogeneous landscape: Linkages to soil N status, nitrate leaching, and N₂O fluxes

  Wangari, E. G., Mwanake, R. M., Houska, T., Kraus, D., Kikowatz, H-M., Wolf, B., Gettel, G. M., Breuer, L., Ambus, P., Kiese, R. & Butterbach-Bahl, K., 2024, In: Soil Biology and Biochemistry. 199, 13 p., 109609.

  Research output: Contribution to journal › Journal article › Research › peer-review
• 2023

  Deepened snow in combination with summer warming increases growing season nitrous oxide emissions in dry tundra, but not in wet tundra

  Xu, W., Frendrup, L. L., Michelsen, A., Elberling, B. & Ambus, P. L., 2023, In: Soil Biology and Biochemistry. 180, 12 p., 109013.

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  4 Citations (Scopus)

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• Delayed nitrogen application after straw and charred straw addition altered the hot moment of soil N₂O emissions

  Ye, X., Ran, H., Wang, X., Li, G., Ambus, P., Wang, G. & Zhu, K., 2023, In: European Journal of Soil Science. 74, 1, 15 p., e13349.

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  8 Citations (Scopus)

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• Effects of long-term organic fertilizer substitutions on soil nitrous oxide emissions and nitrogen cycling gene abundance in a greenhouse vegetable field

  Xu, W., Zhao, D., Ma, Y., Yang, G., Ambus, P. L., Liu, X. & Luo, J., 2023, In: Applied Soil Ecology. 188, 10 p., 104877.

  Research output: Contribution to journal › Journal article › Research › peer-review
  7 Citations (Scopus)

• Fate and stabilization of labile carbon in a sandy boreal forest soil – A question of nitrogen availability?

  Meyer, N., Sietiö, O-M., Adamczyk, S., Ambus, P., Biasi, C., Glaser, B., Kalu, S., Martin, A., Mganga, K. Z., Olin, M., Seppänen, A., Shrestha, R. & Karhu, K., 2023, In: Applied Soil Ecology. 191, 14 p., 105052.

  Research output: Contribution to journal › Journal article › Research › peer-review
  3 Citations (Scopus)

• Fire intensity regulates the short-term postfire response of the microbiome in Arctic tundra soil

  Ramm, E., Ambus, P. L., Gschwendtner, S., Liu, C., Schloter, M. & Dannenmann, M., 2023, In: Geoderma. 438, 11 p., 116627.

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  3 Citations (Scopus)

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• High nitrous oxide emissions from temporary flooded depressions within croplands

  Elberling, B., Kovács, G. M., Hansen, H. F. E., Fensholt, R., Ambus, P., Tong, X., Gominski, D., Mueller, C. W., Poultney, D. M. N. & Oehmcke, S., 2023, In: Communications Earth and Environment. 4, 1, 9 p., 463.

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  1 Citation (Scopus)

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• Moderate nitrogen retention in temperate heath ecosystem after elevated CO₂, drought and warming through 7 years

  Andresen, L. C., Ambus, P., Beier, C. & Michelsen, A., 2023, In: European Journal of Soil Science. 74, 4, 13 p., e13397.

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• Spatial controls of methane uptake in upland soils across climatic and geological regions in Greenland

  D’imperio, L., Li, B-B., Tiedje, J. M., Oh, Y., Christiansen, J. R., Kepfer-Rojas, S., Westergaard-nielsen, A., Brandt, K. K., Holm, P. E., Wang, P., Ambus, P. & Elberling, B., 2023, In: Communications Earth & Environment. 4, 1, 10 p., 461.

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  5 Citations (Scopus)

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• 2022

  A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils—changing the paradigm

  Ramm, E., Liu, C., Ambus, P., Butterbach-bahl, K., Hu, B., Martikainen, P. J., Marushchak, M. E., Mueller, C. W., Rennenberg, H., Schloter, M., Siljanen, H. M. P., Voigt, C., Werner, C., Biasi, C. & Dannenmann, M., 1 Jan 2022, In: Environmental Research Letters. 17, 1, 34 p., 013004.

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  41 Citations (Scopus)

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• Challenges in measuring nitrogen isotope signatures in inorganic nitrogen forms: An interlaboratory comparison of three common measurement approaches

  Biasi, C., Jokinen, S., Prommer, J., Ambus, P., Dörsch, P., Yu, L., Granger, S., Boeckx, P., Van Nieuland, K., Brueggemann, N., Wissel, H., Voropaev, A., Zilberman, T., Jaentti, H., Trubnikova, T., Welti, N., Voigt, C., Gebus-Czupyt, B., Czupyt, Z. & Wanek, W., 2022, In: Rapid Communications in Mass Spectrometry. 36, 22, 16 p., 9370.

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  7 Citations (Scopus)

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• Effects of fire on CO₂, CH₄, and N₂O exchange in a well-drained Arctic heath ecosystem

  Hermesdorf, L., Elberling, B., D'Imperio, L., Xu, W., Lambæk, A. & Ambus, P. L., 2022, In: Global Change Biology. 28, 16, p. 4882-4899

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  13 Citations (Scopus)

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• Microbial carbon use efficiency along an altitudinal gradient

  Mganga, K. Z., Sietiö, O-M., Meyer, N., Poeplau, C., Adamczyk, S., Biasi, C., Kalu, S., Räsänen, M., Ambus, P., Fritze, H., Pellikka, P. K. E. & Karhu, K., 2022, In: Soil Biology and Biochemistry. 173, 12 p., 108799.

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  23 Citations (Scopus)

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• Modelling impacts of lateral N flows and seasonal warming on an arctic footslope ecosystem N budget and N₂O emissions based on species-level responses

  Rasmussen, L. H., Zhang, W., Ambus, P., Jansson, P. E., Kitzler, B. & Elberling, B., 2022, In: Biogeochemistry. 158, 2, p. 195–213 19 p.

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  3 Citations (Scopus)

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• Normalizing time in terms of space: What drives the fate of spring thaw-released nitrogen in a sloping Arctic landscape?

  Rasmussen, L. H., Mortensen, L. H., Ambus, P., Michelsen, A. & Elberling, B., 2022, In: Soil Biology and Biochemistry. 175, 8 p., 108840.

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  1 Citation (Scopus)

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• Pyrogenic organic matter as a nitrogen source to microbes and plants following fire in an Arctic heath tundra

  Xu, W., Elberling, B. & Ambus, P. L., 2022, In: Soil Biology & Biochemistry. 170, 9 p., 108699.

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  13 Citations (Scopus)

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• Re-visiting soil carbon and nitrogen stocks in a temperate heathland seven years after the termination of free air CO₂ enrichment (FACE)

  Li, Q., Ambus, P. L., Michelsen, A., Schmidt, I. K., Beier, C., Dietzen, C. A., Reinsch, S., Arndal, M. F. & Larsen, K. S., 2022, In: Geoderma. 428, 7 p., 116185.

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  2 Citations (Scopus)

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• Våd natur kan give væsentlig klimaeffekt – men på lang sigt

  Christiansen, J. R., Jepsen, M. R., Ambus, P., Elberling, B., Mueller, C., Bruun, S., Gravsholt, A., Jensen, L. S., Bruun, H. H., Krøijer, S., Jessen, N. T., Jessen, S. & Stisen, S., 25 May 2022, BIO (DM).

  Research output: Other contribution › Net publication - Internet publication › Communication

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• 2021

  Analysis of narwhal tusks reveals lifelong feeding ecology and mercury exposure

  Dietz, R., Desforges, J-P., Rigét, F. F., Aubail, A., Garde, E., Ambus, P., Drimmie, R., Heide-Jørgensen, M. P. & Sonne, C., 2021, In: Current Biology. 31, 9, p. 2012-2019.e2 10 p.

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  20 Citations (Scopus)

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• Deepened snow enhances gross nitrogen cycling among Pan-Arctic tundra soils during both winter and summer

  Xu, W., Prieme, A., Cooper, E. J., Mörsdorf, M. A., Semenchuk, P., Elberling, B., Grogan, P. & Ambus, P. L., 1 Sep 2021, In: Soil Biology and Biochemistry. 160, 13 p., 108356.

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  26 Citations (Scopus)

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• Effects of experimental fire in combination with climate warming on greenhouse gas fluxes in Arctic tundra soils

  Xu, W., Lambæk, A., Holm, S. S., Furbo-halken, A., Elberling, B. & Ambus, P. L., 1 Nov 2021, In: Science of the Total Environment. 795, 12 p., 148847.

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  12 Citations (Scopus)

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• Effects of two wood-based biochars on the fate of added fertilizer nitrogen—a ¹⁵N tracing study

  Kalu, S., Oyekoya, G. N., Ambus, P., Tammeorg, P., Simojoki, A., Pihlatie, M. & Karhu, K., 2021, In: Biology and Fertility of Soils. 14 p.

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  15 Citations (Scopus)

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• Fire increases soil nitrogen retention and alters nitrogen uptake patterns among dominant shrub species in an Arctic dry heath tundra

  Xu, W., Elberling, B. & Ambus, P. L., 2021, In: Science of the Total Environment. 807, Part 3, 11 p., 150990.

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  14 Citations (Scopus)

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• Nitrogen transport in a tundra landscape: the effects of early and late growing season lateral N inputs on arctic soil and plant N pools and N₂O fluxes

  Rasmussen, L. H., Zhang, W., Ambus, P., Michelsen, A., Jansson, P. E., Kitzler, B. & Elberling, B., 2021, In: Biogeochemistry. 157, p. 69–84 16 p.

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  12 Citations (Scopus)

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• Nitrous oxide surface fluxes in a low Arctic heath: Effects of experimental warming along a natural snowmelt gradient

  Kolstad, E., Michelsen, A. & Ambus, P. L., 2021, In: Soil Biology and Biochemistry. 160, 14 p., 108346.

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  13 Citations (Scopus)

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• Short-term effects of experimental fire on CO2, CH4 and N2O exchange in a well-drained arctic tundra

  Hermesdorf, L., D'Imperio, L., Elberling, B. & Ambus, P. L., 4 Mar 2021. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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• The Influence of Grain Legume and Tillage Strategies on CO₂ and N₂O Gas Exchange under Varied Environmental Conditions

  Hansen, E. M. Ø., Hauggaard-nielsen, H., Justes, E., Ambus, P. & Mikkelsen, T. N., 2021, In: Agriculture. 11, 5, 18 p., 464.

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• 2020

  A new dataset of soil carbon and nitrogen stocks and profiles from an instrumented Greenlandic fen designed to evaluate land-surface models

  Morel, X., Hansen, B., Delire, C., Ambus, P., Mastepanov, M. & Decharme, B., 2020, In: Earth System Science Data. 12, 4, p. 2365-2380 16 p.

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  1 Citation (Scopus)

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• Combined effects of glacial retreat and penguin activity on soil greenhouse gas fluxes on South Georgia, sub-Antarctica

  Wang, P., D'Imperio, L., Biersma, E. M., Ranniku, R., Xu, W., Tian, Q., Ambus, P. & Elberling, B., 2020, In: The Science of the Total Environment. 718, 135255.

  Research output: Contribution to journal › Journal article › Research › peer-review
  6 Citations (Scopus)

• Nitrogen isotopes reveal high N retention in plants and soil of old Norse and Inuit deposits along a wet-dry arctic fjord transect in Greenland

  Andersen, E. A. S., Michelsen, A., Fenger-Nielsen, R., Hollesen, J., Ambus, P. L. & Elberling, B., 2020, In: Plant and Soil. 455, 1-2, p. 241-255 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  4 Citations (Scopus)

• Slope hydrology and permafrost: The effect of snowmelt N transport on downslope ecosystem

  Rasmussen, L. H., Ambus, P., Zhang, W., Jansson, P. E., Michelsen, A. & Elberling, B., 1 May 2020. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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• 2019

  Accumulation of soil carbon under elevated CO₂ unaffected by warming and drought

  Dietzen, C. A., Larsen, K. S., Ambus, P. L., Michelsen, A., Arndal, M. F., Beier, C., Reinsch, S. & Schmidt, I. K., 2019, In: Global Change Biology. 25, 9, p. 2970-2977 8 p.

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  22 Citations (Scopus)

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• Accumulation of soil carbon under elevated CO2 unaffected by warming and drought

  Dietzen, C. A., Larsen, K. S., Ambus, P. L., Arndal, M. F., Beier, C., Reinsch, S. & Schmidt, I. K., 2019, In: Geophysical Research Abstracts. 21, 1 p., EGU2019-5220.

  Research output: Contribution to journal › Conference abstract in journal › Research

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• Biochar application as a tool to decrease soil nitrogen losses (NH₃ volatilization, N₂O emissions, and N leaching) from croplands: Options and mitigation strength in a global perspective

  Liu, Q., Liu, B., Zhang, Y., Hu, T., Lin, Z., Liu, G., Wang, X., Ma, J., Wang, H., Jin, H., Ambus, P. L., Amonette, J. E. & Xie, Z., 2019, In: Global Change Biology. 25, 6, p. 2077-2093 17 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  175 Citations (Scopus)

• Combining a Quantum Cascade Laser Spectrometer with an Automated Closed-Chamber System for delta δ¹³ Measurements of Forest Soil, Tree Stem and Tree Root CO₂ Fluxes

  Brændholt, A., Ibrom, A., Ambus, P., Larsen, K. S. & Pilegaard, K., 2019, In: Forests. 10, 5

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  7 Citations (Scopus)

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• Deepened winter snow significantly influences the availability and forms of nitrogen taken up by plants in High Arctic tundra

  Mörsdorf, M. A., Baggesen, N. S., Yoccoz, N. G., Michelsen, A., Elberling, B., Ambus, P. L. & Cooper, E. J., 2019, In: Soil Biology & Biochemistry. 135, p. 222-234 13 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  32 Citations (Scopus)

• Sea animal activity controls CO₂ , CH₄ and N₂O emission hotspots on South Georgia, sub-Antarctica

  Wang, P., D'Imperio, L., Liu, B., Tian, Q., Jia, Z., Ambus, P., Rasch, M. & Elberling, B., 2019, In: Soil Biology and Biochemistry. 132, p. 174-186 13 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  5 Citations (Scopus)
• 2018

  Context-dependent tree species effects on soil nitrogen transformations and related microbial functional genes

  Ribbons, R. R., Kepfer Rojas, S., Kosawang, C., Hansen, O. K., Ambus, P. L., McDonald, M., Grayston, S. J., Prescott, C. E. & Vesterdal, L., 1 Sep 2018, In: Biogeochemistry. 140, 2, p. 145-160 1 p.

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  21 Citations (Scopus)

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• How does biochar influence soil N cycle? A meta-analysis

  Liu, Q., Zhang, Y., Liu, B., Amonette, J. E., Lin, Z., Liu, G., Ambus, P. L. & Xie, Z., 2018, In: Plant and Soil. 426, 1-2, p. 211-225 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  247 Citations (Scopus)

• Isotopic methods for non-destructive assessment of carbon dynamics in shrublands under long-term climate change manipulation

  Andresen, L. C., Domínguez, M. T., Reinsch, S., Smith, A. R., Schmidt, I. K., Ambus, P. L., Beier, C., Boeckx, P., Bol, R., De Dato, G., Emmett, B. A., Estiarte, M., Garnett, M. H., Kröel-dulay, G., Mason, S. L., Nielsen, C. S., Peñuelas, J. & Tietema, A., 2018, In: Methods in Ecology and Evolution. 9, 4, p. 866-880 15 p.

  Research output: Contribution to journal › Review › Research › peer-review
  5 Citations (Scopus)

• Minimum tillage mitigated soil N₂O emissions and maximized crop yield in faba bean in a Mediterranean environment

  Volpi, I., Antichi, D., Ambus, P. L., Bonari, E., Nassi o Di Nasso, N. & Bosco, S., 2018, In: Soil & Tillage Research. 178, p. 11-21 11 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  17 Citations (Scopus)

• Paddy soil drainage influences residue carbon contribution to methane emissions

  Tariq, A., Jensen, L. S., Sander, B. O., de Tourdonnet, S., Ambus, P. L., Thanh, P. H., Trinh, M. V. & de Neergaard, A., 2018, In: Journal of Environmental Management. 225, p. 168-176 9 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  12 Citations (Scopus)

• Postfire nitrogen balance of Mediterranean shrublands: Direct combustion losses versus gaseous and leaching losses from the postfire soil mineral nitrogen flush

  Dannenmann, M., Diaz-Pines, E., Kitzler, B., Karhu, K., Tejedor, J., Ambus, P., Parra, A., Sanchez-Martin, L., Resco, V., Ramirez, D. A., Povoas-Guimaraes, L., Willibald, G., Gasche, R., Zechmeister-Boltenstern, S., Kraus, D., Castaldi, S., Vallejo, A., Rubio, A., Moreno, J. M. & Butterbach-Bahl, K., 2018, In: Global Change Biology. 24, 10, p. 4505-4520 16 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  30 Citations (Scopus)

• Resistance of soil protein depolymerization rates to eight years of elevated CO₂, warming, and summer drought in a temperate heathland

  Wild, B., Ambus, P., Reinsch, S. & Richter, A., 2018, In: Biogeochemistry. 140, 3, p. 255-267 13 p.

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  15 Citations (Scopus)

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