Plant and Soil

, Volume 96, Issue 1, pp 145–148

Soil respiration of Alaskan tundra at elevated atmospheric carbon dioxide concentrations

  • Steven F. Oberbauer
  • Walter C. Oechel
  • George H. Riechers
Short Communications

DOI: 10.1007/BF02375005

Cite this article as:
Oberbauer, S.F., Oechel, W.C. & Riechers, G.H. Plant Soil (1986) 96: 145. doi:10.1007/BF02375005

Summary

CO2 efflux from tussock tundra in Alaska that had been exposed to elevated CO2 for 2.5 growing seasons was measured to assess the effect of long- and short-term CO2 enrichment on soil respiration. Long-term treatments were: 348, 514, and 683 μll−1 CO2 and 680 μll−1 CO2+4°C above ambient. Measurements were made at 5 CO2 concentrations between 87 and 680 μll−1 CO2. Neither long- or short-term CO2 enrichment significantly affected soil CO2 efflux. Tundra developed at elevated temperature and 680 μll−1 CO2 had slightly higher, but not statistically different, mean respiration rates compared to untreated tundra and to tundra under CO2 control alone.

Key words

Alaskan tundra CO2 enrichment Soil respiration 
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Copyright information

© Martinus Nijhoff Publishers 1986

Authors and Affiliations

  • Steven F. Oberbauer
    • 1
  • Walter C. Oechel
    • 1
  • George H. Riechers
    • 1
  1. 1.Systems Ecology Research GroupSan Diego State UniversitySan DiegoUSA

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