CO ₂Flux in Arctic and Alpine Dry Tundra: Comparative Field Responses Under Ambient and Experimentally Warmed Conditions

[1 ]Department of Renewable Resources, University of Wyoming, Laramie, Wyoming 82071, U.S.A.

[2 ]Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, Colorado 80523, U.S.A.

[3 ]Rangeland Ecosystem Science Department, Colorado State University, Fort Collins, Colorado 80523, U.S.A.