“Fluxes of CO2, water vapor, and sensible heat were measured by the eddy covariance method above a young ponderosa pine plantation in the Sierra Nevada Mountains (CA) over two growing seasons.…We conclude that the net C balance of Mediterranean-climate pine ecosystems is sensitive to extreme events under low soil moisture conditions and could be altered by slight changes in the climate or hydrologic regime.”


A.H. Goldstein, N.E. Hultman, J.M. Fracheboud. M.R. Bauer. J.A. Panek, M. Xu, Y. Qi, A.B. Guenther, W. Baugh. “Effects of climate variability on the carbon dioxide, water, and sensible heat fluxes above a ponderosa pine plantation in the Sierra Nevada (CA).” http://nature.berkeley.edu/~ahg/pubs/Effects.pdf