Relationshipsbetweenfine root dynamics and nitrogen availabilityin Michigan northernhardwoodforests

0_ Abstract Minirhizotrons were used to observe fine root Key words Sugar mapleRoot longevityRoot (<1 ram) production, mortality, and longevity over production. Root mortality. Carbon allocation 2 years in four sugar-maple-dominated northern hard- _ wood forests located along a latitudinal temperature gra- dient. The sites also differed in N availability, allowing Introduction us to assess the relative influences of soil temperature