Tundra ecosystem respiration is dominated by recent C inputs, masking contributions from old and more decomposed substrates

Marguerite Mauritz1, Gerardo Celis2, Christopher Ebert3, Jack A Hutchings2, Justin Ledman4, Elaine Pegoraro5, Verity Salmon6, Christina Schaedel5, Meghan Taylor3 and Edward Schuur3, (1)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (2)University of Florida, Gainesville, FL, United States, (3)Northern Arizona University, Center for Ecosystem Science and Society (ECOSS), Flagstaff, AZ, United States, (4)Bonanza Creek Long Term Ecological Research Site, Fairbanks, AK, United States, (5)Northern Arizona University, Flagstaff, AZ, United States, (6)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Sciences Institute, Oak Ridge, TN, United States