Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA.

Martin Wojciechowski, M. E. Heimbrook

Research output: Chapter in Book/Report/Conference proceedingChapter

20 Citations (Scopus)

Abstract

The highest overall acetylene reduction rates are found in the wet Caltha meadow and moist Salix shrub tundra sites (5.8-7.8 mu mol ethylene produced in m-2 h-1); lowest activities are found in the soils of the xeric sites, Kobresia meadow and fellfield tundras (0.13-0.33 mu mol ethylene m-2 h-1). Soil moisture is the primary environmental factor influencing in situ rates of acetylene reduction. Acetylene reduction activity was associated with the vascular plants Dryas octopetala ssp. hookeriana and Trifolium dasyphyllum (0.13-5.4 mu mol ethylene m-2 h-1), and the lichens Peltigera aphthosa and Stereocaulon alpinum (0.05-0.42 mu mol ethylene g-1 h-1). Low activity associated with the moss Pohlia is attributed to epiphytic cyanobacteria. The contribution of N by dinitrogen fixation, estimated to be 5 mg N m-2 annually, does not apparently constitute the major source of N input to this tundra system. - from Authors

Original languageEnglish (US)
Title of host publicationArctic & Alpine Research
Pages1-10
Number of pages10
Volume16
Edition1
StatePublished - 1984
Externally publishedYes

Fingerprint

tundra
ethylene
fixation
acetylene
meadow
vascular plant
lichen
moss
cyanobacterium
environmental factor
shrub
soil moisture
soil
rate

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Wojciechowski, M., & Heimbrook, M. E. (1984). Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA. In Arctic & Alpine Research (1 ed., Vol. 16, pp. 1-10)

Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA. / Wojciechowski, Martin; Heimbrook, M. E.

Arctic & Alpine Research. Vol. 16 1. ed. 1984. p. 1-10.

Research output: Chapter in Book/Report/Conference proceedingChapter

Wojciechowski, M & Heimbrook, ME 1984, Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA. in Arctic & Alpine Research. 1 edn, vol. 16, pp. 1-10.
Wojciechowski M, Heimbrook ME. Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA. In Arctic & Alpine Research. 1 ed. Vol. 16. 1984. p. 1-10
Wojciechowski, Martin ; Heimbrook, M. E. / Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA. Arctic & Alpine Research. Vol. 16 1. ed. 1984. pp. 1-10
@inbook{e0f976ef50bf4438a0aa7872d76deade,
title = "Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA.",
abstract = "The highest overall acetylene reduction rates are found in the wet Caltha meadow and moist Salix shrub tundra sites (5.8-7.8 mu mol ethylene produced in m-2 h-1); lowest activities are found in the soils of the xeric sites, Kobresia meadow and fellfield tundras (0.13-0.33 mu mol ethylene m-2 h-1). Soil moisture is the primary environmental factor influencing in situ rates of acetylene reduction. Acetylene reduction activity was associated with the vascular plants Dryas octopetala ssp. hookeriana and Trifolium dasyphyllum (0.13-5.4 mu mol ethylene m-2 h-1), and the lichens Peltigera aphthosa and Stereocaulon alpinum (0.05-0.42 mu mol ethylene g-1 h-1). Low activity associated with the moss Pohlia is attributed to epiphytic cyanobacteria. The contribution of N by dinitrogen fixation, estimated to be 5 mg N m-2 annually, does not apparently constitute the major source of N input to this tundra system. - from Authors",
author = "Martin Wojciechowski and Heimbrook, {M. E.}",
year = "1984",
language = "English (US)",
volume = "16",
pages = "1--10",
booktitle = "Arctic & Alpine Research",
edition = "1",

}

TY - CHAP

T1 - Dinitrogen fixation in alpine tundra, Niwot Ridge, Front Range, Colorado, USA.

AU - Wojciechowski, Martin

AU - Heimbrook, M. E.

PY - 1984

Y1 - 1984

N2 - The highest overall acetylene reduction rates are found in the wet Caltha meadow and moist Salix shrub tundra sites (5.8-7.8 mu mol ethylene produced in m-2 h-1); lowest activities are found in the soils of the xeric sites, Kobresia meadow and fellfield tundras (0.13-0.33 mu mol ethylene m-2 h-1). Soil moisture is the primary environmental factor influencing in situ rates of acetylene reduction. Acetylene reduction activity was associated with the vascular plants Dryas octopetala ssp. hookeriana and Trifolium dasyphyllum (0.13-5.4 mu mol ethylene m-2 h-1), and the lichens Peltigera aphthosa and Stereocaulon alpinum (0.05-0.42 mu mol ethylene g-1 h-1). Low activity associated with the moss Pohlia is attributed to epiphytic cyanobacteria. The contribution of N by dinitrogen fixation, estimated to be 5 mg N m-2 annually, does not apparently constitute the major source of N input to this tundra system. - from Authors

AB - The highest overall acetylene reduction rates are found in the wet Caltha meadow and moist Salix shrub tundra sites (5.8-7.8 mu mol ethylene produced in m-2 h-1); lowest activities are found in the soils of the xeric sites, Kobresia meadow and fellfield tundras (0.13-0.33 mu mol ethylene m-2 h-1). Soil moisture is the primary environmental factor influencing in situ rates of acetylene reduction. Acetylene reduction activity was associated with the vascular plants Dryas octopetala ssp. hookeriana and Trifolium dasyphyllum (0.13-5.4 mu mol ethylene m-2 h-1), and the lichens Peltigera aphthosa and Stereocaulon alpinum (0.05-0.42 mu mol ethylene g-1 h-1). Low activity associated with the moss Pohlia is attributed to epiphytic cyanobacteria. The contribution of N by dinitrogen fixation, estimated to be 5 mg N m-2 annually, does not apparently constitute the major source of N input to this tundra system. - from Authors

UR - http://www.scopus.com/inward/record.url?scp=0021607102&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021607102&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:0021607102

VL - 16

SP - 1

EP - 10

BT - Arctic & Alpine Research

ER -