Journal Article 7440-44-0 Carbon Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. SAFE Project Soil allocation CO2 flux Global Ecosystems Monitoring autotrophic respiration belowground carbon allocation biomass carbon construction cost damage resistance fine roots functional trait harvest heterotrophic respiration land use leaf logging mechanical strength net primary productivity network architecture productivity residence time resource transport selective logging