Journal Article Research Support, U.S. Gov't, Non-P.H.S. Soil 142M471B3J 7440-44-0 Carbon Carbon Dioxide Research Support, Non-U.S. Gov't associations between fungi and plant hosts atmospheric CO2 enrichment belowground ecology belowground plant traits boreal peatlands diversity drainage ectomycorrhizal fungi equity and inclusion ericoid mycorrhizal fungi fine roots functional traits fungal and bacterial communities microbes mycorrhizal type peatland plant-mycorrhizal associations process‐based models spatial and temporal scales terrestrial nutrient cycle vegetation gradient warming