TY - JOUR T1 - Landscape Distribution of Microbial Activity in the McMurdo Dry Valleys: Linked Biotic Processes, Hydrology, and Geochemistry in a Cold Desert Ecosystem JF - Ecosystems Y1 - 2009 A1 - Lydia H. Zeglin A1 - Sinsabaugh, R A1 - John E. Barrett A1 - Michael N. Gooseff A1 - Cristina D. Takacs-Vesbach VL - 12 ER -