Alaska 2 Journal Article 2 N762921K75 2 Nitrogen 2 Research Support, U.S. Gov't, Non-P.H.S. 2 isotope 15N 2 moist acidic tundra mehr ... Research Support, Non-U.S. Gov't 1 Soil 1 active layer 1 dark septate endophyte 1 ectomycorrhizal (ECM) fungi 1 ectomycorrhizal fungi 1 ericoid mycorrhizal (ERM) fungi 1 ericoid mycorrhizal fungi 1 fungal internal transcribed spacer (ITS) 1 shrub expansion 1 weniger ...