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Biogeochemistry

, Volume 138, Issue 2, pp 155–170 | Cite as

Net nitrogen mineralization in Alberta bog peat is insensitive to experimentally increased nitrogen deposition and time since wildfire

  • Julia E. M. Stuart
  • R. Kelman WiederEmail author
  • Melanie A. Vile
Article

Abstract

Across northern Alberta, Canada, bogs experience periodic wildfire and, in the Fort McMurray region, are exposed to increasing atmospheric N deposition related to oil sands development. As the fire return interval shortens and/or growing season temperatures increase, the regional peatland CO2–C sink across northern Alberta will likely decrease, but the magnitude of the decrease could be diminished if increasing atmospheric N deposition alters N cycling in a way that stimulates post-fire successional development in bogs. We quantified net ammonification, nitrification, and dissolved organic N (DON) production in surface peat along a post-fire chronosequence of five bogs where we also experimentally manipulated N deposition (no water controls plus 0, 10, and 20 kg N ha−1 yr−1 simulated deposition, as NH4NO3). Initial KCl-extractable NH4+–N, NO3–N and DON averaged 176 ± 6, 54 ± 0.2, and 3580 ± 40 ng N cm−3, respectively, with no consistent changes as a function of time since fire and no consistent effects of experimental N addition. Net ammonification, nitrification, and DON production averaged 3.8 ± 0.3, 1.6 ± 0.2, and 14.3 ± 2.0 ng N cm−3 d−1, also with no consistent changes as a function of time since fire and no consistent effects of experimental N addition. Our hypothesis that N mineralization would be stimulated after fire because root death would create a pulse of labile soil organic C was not supported, most likely because ericaceous plant roots typically are not killed in boreal bog wildfires. The absence of any N mineralization response to experimental N addition is most likely a result of rapid immobilization of added NH4+–N and NO3–N in peat with a wide C:N ratio. In these boreal bogs, belowground N cycling is likely characterized by large DON pools that turn over relatively slowly and small DIN pools that turn over relatively rapidly. For Alberta bogs that have persisted at historically low N deposition values and begin to receive higher N deposition related to anthropogenic activities, peat N mineralization processes may be largely unaffected until the peat C:N ratio reaches a point that no longer favors immobilization of NH4+–N and NO3–N.

Keywords

Alberta Bog Nitrogen deposition DON Mineralization Nitrogen Peat Wildfire 

Notes

Acknowledgements

Cara Albright, Hope Fillingim, Kelly McMillen, Mikah Schlesinger, and Kimberli Scott provided assistance in the field and in the lab. This work was supported by the National Science Foundation (Grants 1143719 and 1256985).

Supplementary material

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Supplementary material 1 (DOCX 30 kb)
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Supplementary material 5 (DOCX 45 kb)

References

  1. Andersen R, Chapman SJ, Artz RRE (2013) Microbial communities in natural and disturbed peatlands: a review. Soil Biol Biochem 57:979–994CrossRefGoogle Scholar
  2. Anderson R, Wells C, Macrae M, Price J (2013) Nutrient mineralization and functional diversity in a restored bog approach natural conditions 10 years post restoration. Soil Biol Biochem 64:37–47CrossRefGoogle Scholar
  3. Bayley SE, Thormann MN, Szumigalski AR (2005) Nitrogen mineralization and decomposition in western boreal bog and fen peat. Écoscience 12:455–465CrossRefGoogle Scholar
  4. Benscoter BW, Vitt DH (2008) Spatial and temporal patterns in bog ground layer composition along a post-fire chronosequence. Ecosystems 11:1054–1064CrossRefGoogle Scholar
  5. Benscoter BW, Vitt DH, Wieder RK (2005) Linking microtopography with post-fire succession in bogs. J Veg Sci 16:453–460CrossRefGoogle Scholar
  6. Berendse F, van Breemen N, Rydin H, Buttler A, Heijmans M, Hoosbeek MR, Lee JA, Mitchell E, Saarinen T, Vasander H, Wallén B (2001) Raised atmospheric CO2 levels and increased N deposition cause shifts in plant species composition and production in Sphagnum bogs. Glob Chang Biol 7:591–598CrossRefGoogle Scholar
  7. Bonnett SAF, Ostle N, Freeman C (2010) Short-term effect of deep shade and enhanced nitrogen supply on Sphagnum capillifolium morphophysiology. Plant Ecol 207:347–358CrossRefGoogle Scholar
  8. Bragazza L, Limpens J (2004) Dissolved organic nitrogen dominates in European bogs under increasing atmospheric N deposition. Glob Biogeochem Cy 18:1–5CrossRefGoogle Scholar
  9. Bragazza L, Tahvanainen T, Kutnar T, Rydin H, Limpens J, Hájek M, Grosvernier P, Hájek T, Hajkiva O, Hansen I, Iacumin O, Gerdol R (2004) Nutritional constraints in ombrotrophic Sphagnum plants under increasing atmospheric nitrogen deposition in Europe. Glob Chang Biol 7:591–598Google Scholar
  10. Bragazza L, Limpens J, Gerdol R, Grosvernier P, Hájek M, Hájek T, Hajkova P, Hansen I, Iacumin P, Kutnar L, Rydin H, Tahvanainen T (2005) Nitrogen concentration and δ15N signature of ombrotrophic Sphagnum mosses at different N deposition levels in Europe. Glob Chang Biol 11:106–114CrossRefGoogle Scholar
  11. Calmes MA, Zasada JC (1982) Some reproductive traits of four shrub species in the black spruce forest type of Alaska. Can Field Nat 96:35–40Google Scholar
  12. Cardinali A, Pizzeghello D, Zanin G (2015) Fatty acid methyl ester (FAME) succession in different substrates as affected by the co-application of three pesticides. PLoS ONE.  https://doi.org/10.1371/journal.pone.0145501 Google Scholar
  13. DeVito KJ, Westbrook CJ, Schiff SL (1999) Nitrogen mineralization and nitrification in upland and peatland forest soils in two Canadian shield catchments. Can J Forest Res 29:1793–1804CrossRefGoogle Scholar
  14. Dooley SR, Treseder KK (2012) The effect of fire on microbial biomass: a meta-analysis of field studies. Biogeochemistry 109:49–61CrossRefGoogle Scholar
  15. Eno CH (1960) Nitrate production in the field by incubating the soil in polyethylene bags. Soil Sci Soc Am Proc 24:277–279CrossRefGoogle Scholar
  16. Flinn MA, Wein RW (1977) Depth of underground plant organs and theoretical survival during fire. Can J Bot 55:2550–2554CrossRefGoogle Scholar
  17. Frostegård A, Bååth E (1996) The use of phospholipid fatty analysis to estimate bacterial and fungal biomass in soil. Biol Fert Soils 22:59–65CrossRefGoogle Scholar
  18. Frostegård A, Tunlid A, Bååth E (1993) Phospholipid fatty acid composition, biomass, and activity of microbial communities from two soil types experimentally exposed to different heavy metals. Appl Environ Microbiol 59:3605–3617Google Scholar
  19. Hayden MJ, Ross DS (2005) Denitrification as a nitrogen removal mechanism in a Vermont peatland. J Environ Qual 34:2052–2061CrossRefGoogle Scholar
  20. Högberg MN, Högberg P, Myrold DD (2007) Is microbial community composition in boreal forest soils determined by pH, C-to-N ratio, the trees, or all three? Oecologia 150:590–601CrossRefGoogle Scholar
  21. Holden SR, Treseder KK (2013) A meta-analysis of soil microbial biomass responses to forest disturbances. Front Microbiol.  https://doi.org/10.3389/fmicb.2013.00163 Google Scholar
  22. Hu Y, Zheng Q, Wanek W (2017) Flux analysis of free amino sugars and amino acids in soils by isotope tracing with a novel liquid chromatography/High resolution mass spectrometry platform. Anal Chem 89:9192–9200CrossRefGoogle Scholar
  23. Jiroušek M, Hájek T, Bragazza L (2011) Nutrient stoichiometry in Sphagnum along a nitrogen deposition gradient in highly polluted region of Central-East Europe. Environ Pollut 159:585–590CrossRefGoogle Scholar
  24. Keller JK, Bridgham SD (2007) Pathways of anaerobic carbon cycling across an ombrotrophic-minerotrophic peatland gradient. Limnol Oceanogr 52:96–107CrossRefGoogle Scholar
  25. Kielland K (1994) Amino acid absorption by arctic plants: implications for plant nutrition and nitrogen cycling. Ecology 75:2373–2383CrossRefGoogle Scholar
  26. Lamers LPM, Bobbink R, Roelofs JGM (2000) Natural nitrogen filter fails in raised bogs. Glob Chang Biol 6:583–586CrossRefGoogle Scholar
  27. Langley JA, Chapman SK, Hungate BA (2006) Ectomycorrhizal colonization slows root decomposition: the post mortem fungal legacy. Ecol Lett 9:955–959CrossRefGoogle Scholar
  28. Limpens J, Berendse F, Klees H (2003) N deposition affects N availability in interstitial water, growth of Sphagnum and invasion of vascular plants in bog vegetation. New Phytol 157:339–347CrossRefGoogle Scholar
  29. Limpens J, Heijmans MMPG, Berendse F (2006) The nitrogen cycle in boreal peatlands. In: Wieder RK, Vitt DH (eds) Boreal peatland ecosystems. Springer, Berlin, pp 195–230CrossRefGoogle Scholar
  30. Limpens J, Granath G, Gunnarsson U, Aerts R, Bayley S, Bragazza L, Bubier J, Buttler A, van den Berg LJL, Francez A-J, Gerdol R, Grosvernier P, Heijmans MMPD, Hoosbeek MR, Hotes S, Ilomets M, Leith I, Mitchell EAD, Moore T, Nilsson MB, Nordbakken J-F, Rochefort L, Rydin H, Sheppard LJ, Thormann M, Wiedermann MM, Williams BL, Xu B (2011) Climatic modifiers of the response to nitrogen deposition in peat-forming Sphagnum mosses: a meta-analysis. New Phytol 191:496–507CrossRefGoogle Scholar
  31. Mallik I, Mallik AU (1997) Effects of Ledum groenlandicum amendments on soil characteristics and black spruce seedling growth. Plant Ecol 133:29–36CrossRefGoogle Scholar
  32. Malmer N, Wallén B (2004) Input rates, decay losses and accumulation rates of carbon in bogs during the last millennium: internal processes and environmental changes. The Holocene 14:111–117CrossRefGoogle Scholar
  33. Malmer N, Svensson BM, Wallén B (1994) Interactions between Sphagnum mosses and field layer vascular plants in the development of peat-forming systems. Folia Geobot Phytotax 29:483–496CrossRefGoogle Scholar
  34. Malmer N, Albinsson C, Svensson BH, Wallén B (2003) Interferences between Sphagnum and vascular plants: effects on plant community structure and peat formation. Oikos 100:469–482CrossRefGoogle Scholar
  35. McGill WB, Cole CV (1981) Comparative aspects of cycling of organic C, N, S, and P through soil organic matter. Geoderma 26:267–286CrossRefGoogle Scholar
  36. Parminter J (1984) Fire-ecological Relationships for the Biogeoclimatic Zones of the Northern Portion of the Mackenzie Timber Supply Area Summary Report. Ministry of Forests, VictoriaGoogle Scholar
  37. Read DJ, Bajwa R (1985) Some nutritional aspects of the biology of ericaceous mycorrhizas. Proc Royal Soc Edinburgh 85B:317–332Google Scholar
  38. Robertson GP, Groffman PM (2015) Nitrogen transformations. In: Paul EA (ed) Soil microbiology, ecology and biochemistry, 4th edn. Academic Press, Burlington, Massachusetts, pp 421–446Google Scholar
  39. Schimel JP, Bennett J (2004) Nitrogen mineralization: challenges of a changing paradigm. Ecology 85:591–602CrossRefGoogle Scholar
  40. Smithwick EAH, Turner MG, Mack MC, Chapin FS III (2005) Postfire soil N cycling in northern conifer forests affected by severe stand-replacing wildfires. Ecosystems 8:163–181CrossRefGoogle Scholar
  41. Stribley DP, Read DJ (1980) The biology of mycorrhiza of the Ericaceae. VII. The relationship between mycorrhizal infection and the capacity to utilize simple and complex nitrogen sources. New Phytol 86:365–371CrossRefGoogle Scholar
  42. Stromberger ME, Keith AM, Schmidt O (2012) Distinct microbial and faunal communities and translocated carbon in Lumbricus terrestris drilospheres. Soil Biol Biochem 46:155–162CrossRefGoogle Scholar
  43. Thormann MN (2006a) Diversity and function of fungi in peatlands: a carbon cycling perspective. Can J Soil Sci 86:281–293CrossRefGoogle Scholar
  44. Thormann MN (2006b) The role of fungi in boreal peatlands. In: Wieder RK, Vitt DH (eds) Boreal peatland ecosystems. Springer, Berlin, pp 101–123CrossRefGoogle Scholar
  45. Turetsky MR, Amiro BD, Bosch E, Bhatti JS (2004) Historical burn area in western Canadian peatland and its relationship to fire weather indices. Glob Biogeochem Cy.  https://doi.org/10.1029/2004gb002222 Google Scholar
  46. Urban NR, Eisenreich SJ, Bayley SE (1988) The relative importance of denitrification and nitrate assimilation in midcontinental bogs. Limnol Oceanogr 33:1611–1617CrossRefGoogle Scholar
  47. van Belle G, Fisher LD, Heagerty PJ, Lumley T (2004) Biostatistics, a methodology for the health sciences, 2nd edn. Wiley, Hoboken, pp 894Google Scholar
  48. Vasander H, Kettunen U (2006) Carbon in boreal peatlands. In: Wieder RK, Vitt DH (eds) Boreal peatland ecosystems. Springer, Berlin, pp 165–194CrossRefGoogle Scholar
  49. Verhoeven JTA, Kooijman AM, van Wirdum G (1988) Mineralization of N and P along a trophic gradient in a freshwater mire. Biogeochemistry 6:31–43CrossRefGoogle Scholar
  50. Verhoeven J, Maltz E, Schmitz B (1990) Nitrogen and phosphorus mineralization in fens and bogs. J Ecol 78:713–726CrossRefGoogle Scholar
  51. Vile MA, Wieder RK, Živković T, Scott KD, Vitt DH, Hartsock JA, Iosue CL, Quinn JC, Petix M, Fillingim HM, Popma JMA, Dynarski KA, Jackman TR, Albright CM, Wykoff DD (2014) N2-fixation by methanotrophs sustains carbon and nitrogen accumulation in pristine peatlands. Biogeochemistry 121:317–328CrossRefGoogle Scholar
  52. Vitt DH (2006) Functional characteristics and indicators of boreal peatlands. In: Wieder RK, Vitt DH (eds) Boreal peatland ecosystems. Springer, Berlin, pp 9–24CrossRefGoogle Scholar
  53. Vitt DH, Halsey LA, Bauer IE, Campbell C (2000) Spatial and temporal trends of carbon sequestration in peatlands of continental western Canada through the Holocene. Can J Earth Sci 37:683–693CrossRefGoogle Scholar
  54. Wanek W, Mooshammer M, Blöchl A, Hanreich A, Richter A (2010) Determination of gross rates of amino acid production and immobilization in decomposing leaf letter by a novel 15N isotope pool dilution technique. Soil Biol Biochem 42:1293–1302CrossRefGoogle Scholar
  55. Westbrook CJ, DeVito KJ (2004) Gross nitrogen transformations in soils from uncut and cut boreal upland and peatland coniferous forest stands. Biogeochemistry 68:33–50CrossRefGoogle Scholar
  56. Wieder RK (2016) Peatland porewater chemistry nonresponsive to five years of experimentally augmented atmospheric N deposition. Nitrogen Critical Loads Five-year Final Repor. CEMA AWG Nitrogen Eutrophication Task Group, Cumulative Environmental Management Association, Edmonton, Alberta, May 2016Google Scholar
  57. Wieder K, Vitt DH, Benscoter BW (2006) Peatlands and the boreal forest. In: Wieder RK, Vitt DH (eds) Boreal peatland ecosystems. Springer, Berlin, pp 1–8CrossRefGoogle Scholar
  58. Wieder RK, Scott KD, Kamminga K, Vile MA, Vitt DH, Bone T, Xu B, Benscoter BW, Bhatti JS (2009) Postfire carbon balance in boreal bogs of Alberta, Canada. Glob Change Biol 15:63–81CrossRefGoogle Scholar
  59. Wieder RK, Vile MA, Scott KD, Albright CM, McMillen KJ, Vitt DH, Fenn ME (2016a) Differential effects of high atmospheric N and S deposition on bog plant/lichen tissue and porewater chemistry across the Athabasca oil sands region. Environ Sci Technol 50:12630–12640CrossRefGoogle Scholar
  60. Wieder RK, Vile MA, Albright CM, Scott KD, Vitt DH, Quinn JC, Burke-Scoll M (2016b) Effects of altered atmospheric nutrient deposition from Alberta oil sands development on Sphagnum fuscum growth and C, N and S accumulation in peat. Biogeochemistry 129:1–19CrossRefGoogle Scholar
  61. Williams B, Wheatley R (1988) Nitrogen mineralisation and water-table height in oligotrophic deep peat. Biol Fert Soils 6:141–147CrossRefGoogle Scholar
  62. Wray HE, Bayley SE (2008) Nitrogen dynamics in floating and non-floating peatlands in the Western Boreal Plain. Can J Soil Sci 88:697–708CrossRefGoogle Scholar
  63. Xu B (2004) Post-fire root biomass and ectomycorrhizal associations in the western continental Canadian boreal peatlands. M.S. Thesis, Villanova University, Villanova, Pennsylvania, USAGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of BiologyVillanova UniversityVillanovaUSA
  2. 2.Department of Geography and the EnvironmentVillanova UniversityVillanovaUSA
  3. 3.Center for Ecosystem Science and SocietyNorthern Arizona UniversityFlagstaffUSA
  4. 4.Faculty of Science and TechnologyAthabasca UniversityAthabascaCanada

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