Auxiliary material for Paper 2006GL026972

CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century

Qianlai Zhuang
Department of Earth and Atmospheric Sciences,  Purdue University, West Lafayette, Indiana, USA
Also at Department of Agronomy, Purdue University, West Lafayette, Indiana, USA

Jerry M. Melillo 
The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA

Marcus C. Sarofim
Joint Program on the Science and Policy of Global Change, MIT E40-271, Cambridge, Massachusetts, USA

David W. Kicklighter 
The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA

A. David McGuire
U.S. Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, University of Alaska, Fairbanks, Alaska, USA

Benjamin S. Felzer
The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA

Andrei Sokolov and Ronald G. Prinn
Joint Program on the Science and Policy of Global Change, MIT E40-271, Cambridge, Massachusetts, USA

Paul A. Steudler and Shaomin Hu
The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA

Zhuang, Q., J. M. Melillo, M. C. Sarofim, D. W. Kicklighter, A. D. McGuire, B. S. Felzer, A. Sokolov, R. G. Prinn, P. A. Steudler, and S. Hu (2006), CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century, 
Geophys. Res. Lett., 33, L17403, doi:10.1029/2006GL026972.


Introduction

These data include global warming potentials (Pg CO2-eq. yr-1) of CO2 and CH4 fluxes and their budgets in the 2090s associated with climate-related biogeochemical changes in the high northern latitudes. CH4 fluxes are expressed as 100-year time horizon global warming potentials by multiplying weight of methane fluxes by a factor of 23.

In tables S1-S6, the first column is "climate," which indicates the climate scenarios, the second column is net methane exchange in CO2-eq. units, the third coulmn is net CO2 exchange in units of CO2, and the fourth column is "budget," which is the sum of columns 2 and 3.

1. 2006gl026972-ts01.txt  Table S1. Data for 50% fire with CO2 fertilization effects

2. 2006gl026972-ts02.txt  Table S2. Data for 50% fire with no CO2 fertilization effects

3. 2006gl026972-ts03.txt  Table S3. Data for 100% fire with CO2 fertilization effects

4. 2006gl026972-ts04.txt  Table S4. Data for 100% fire with no CO2 fertilization effects

5. 2006gl026972-ts05.txt  Table S5. Data for 150% fire with CO2 fertilization effects

6. 2006gl026972-ts06.txt   Table S6. Data for 150% fire with no CO2 fertilization effects