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Fine root diameter

Formal name:  first order fine root diameter
Local identifier:  TOP947
Definition:  The diameter (PATO:diameter) of a first order fine root (McCormack:fine root) .
Formal Unit:  length unit

Comment:  We suggest to specify fine roots by function (absorption versus transport) and branching order in addition to diameter (<= 2 mm).
Reference:  Jens Kattge, Ulrike Stahl, Eric Garnier, Stefan Klotz, Ingolf Kühn