Abstract
Soil nitrogen transformations and nitrous oxide fluxes were measured in a range of sagebrush steppe ecosystems in south-central Wyoming. Net nitrate production, measured in laboratory incubations, was highest in the ecosystem type dominated by Artemisia tridentata ssp. vaseyana, especially early in the growing season. Fluxes of nitrous oxide, measured in closed chambers and analyzed by gas chromatography, also tended to be higher in the same type, but only for short periods in the spring. Thereafter, all nitrous oxide fluxes were low and did not differ consistently among types. Estimated average annual fluxes for three Artemisia ecosystem types (dominated by Artemisia tridentata ssp. vaseyana, Artemisia tridentata ssp. wyomingensis, and Artemisia nova) were 0.32, 0.23 and 0.13 kg N2O-N ha−1 y−1 repsectively. Average annual flux, weighted by the areal extent of these and other vegetation types in the region, was approximately 0.21 kg N2O-N ha−1y−1. Assuming this landscape is representative of sagebrush steppe, we calculate a flux of 9.5 × 109 g y−1 of N2O-N from U.S. sagebrush steppe, and a flux of 1.1 × 1011 g y−1 of N20-N from analogous desert and semi-desert shrublands of the world.
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References
Bowden WB (1986) Gaseous nitrogen emissions from undisturbed terrestrial ecosystems: an assessment of their impact on local and global nitrogen budgets. Biogeochemistry 2: 249–280
Burke I (1989) Control of nitrogen mineralization in a sagebrush steppe landscape. Ecology 70 (4): 1115–1126
Burke IC, Reiners WA & Olson RO (1989) Topographic control of vegetation in a mountain big sagebrush steppe. Vegetatio 84: 77–86
Firestone MK & Davidson EA (1989) Microbial basis of NO and N2O Production and consumption in soil. In: Andreae MO & Schimel DS (Eds) Exchange of Trace Gases between Terrestrial Ecosystems and the Athmosphere (pp 7–22). Wiley and Sons, New York
Goodroad LL & Keeney DR (1984) Nitrous oxide emissions from forest, marsh and prairie ecosystems. J. Env. Quality 13: 448–452
Love JD & Christianson AC (1985) Geologic map of Wyoming. U.S. Geological Survey, Denver, CO
Matson PA & Vitousek PM (1987) Cross-system comparisons of soil nitrogen transformations and nitrous oxide flux in tropical forest ecosystem. Global Biogeochemical Cycles 1: 163–170
Matson PA & Vitousek PM (in press) Biosphere-atmosphere interactions in a tropical deciduous forest ecosystem. In: Mooney HA, Medina E & Bullock SA (Eds) The Tropical Deciduous Forest Ecosystem. Springer-Verlag
Matson PA, Vitousek PM, Livingston GP & Swanberg NA (1990) Sources of variation in nitrous oxide flux from Amazonian ecosystems. Journal of Geophysical Research 95 (d10): 16789–16798
McElroy MB & Wofsy SC (1986) Tropical forests: Interactions with the atmosphere. In: Prance GT (Ed) Tropical Rain Forests and the World Atmosphere, AAAS Selected Symposium 101 (pp 33–60). Westview Press, Inc., Boulder, Co
National Research Council (U.S.) (1986) U.S. Committee for an International GeosphereBiosphere Program. Global Change in the Geosphere-Bisphere. National Academy Press, Washington, D. C. 91 pp
Parton WJ, Mosier AR & Schimel DS (1988) Rates and pathways of nitrous oxide production in a shortgrass steppe. Biogeochemistry 6: 45–58
Prinn R, Cunnold D, Rasmussen R, Simmonds S, Alyea F, Crawford A, Fraser P & Rosen R (1990) Atmospheric emissions and trends of nitrous oxide deduced from ten years of ALE-GAGE data. Journal of Geophysical Research 95 (D11): 18369–18385
Reiners WA, Strong LL, Matson PA, Burke IC & Ojima DS (1989) Estimating biogeochemical fluxes cross sagebrush-steppe landscapes with thematic mapper imagery. Remote Sens. Environ. 28: 121–129
Schmidt J, Seiler W & Conrad R (1988) Emission of nitrous oxide from temperate forest soils into the atmosphere. Journal of Atmospheric Chemistry 6: 95–115
Sturges DL (1982) A study of certain hydrologic characteristics of big sagebrush watersheds in southern Wyoming (Stratton Sagebrush Hydrology Study). Final Report. U.S. Department of Interior, Bureau of Land Management, Contract No. YA-515-IA8-7, 70 pp
Sturges DL (1986) Responses of vegetation and ground cover to spraying a high elevation, big sagebrush watershed with 2,4-D. Journal of Range Management 39: 141–146
Weiss RF (1981) The temporal and spatial distribution of tropospheric nitrous oxide. Journal of Geophysical Research 86: 7185–7195
West NE (1983a) Western intermountain sagebrush steppe. In: West NE (Ed) Temperate Deserts and Semi-Deserts. Ecosystems of the World, Vol 5 (pp 351–374). Elsevier Scientific Publishing Co., Amsterdam
West NE (1983b) Great basin-Colorado plateau semi-desert. In: West NE (Ed) Temperate Deserts and Semi-Deserts. Ecosystems of the World (pp 331–349). Elsevier Scientific Publishing Co., Amsterdam
West NE (1983c) Comparisons and contrasts between the temperate deserts and semi-deserts of three continents. In: West NE (Ed) Temperate Deserts and Semi-Deserts. Ecosystems of the World, Vol 5 (pp 461–472). Elsevier Scientific Publishing Co., Amsterdam
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Matson, P.A., Volkmann, C., Coppinger, K. et al. Annual nitrous oxide flux and soil nitrogen characteristics in sagebrush steppe ecosystems. Biogeochemistry 14, 1–12 (1991). https://doi.org/10.1007/BF00000883
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DOI: https://doi.org/10.1007/BF00000883