Appendix G. Effects of root pigmentation first- and second-order roots on P, Mg, and Ca content during decomposition under the "own" canopy species. GoebelMarc E. HobbieSarah BulajBartosz ZadwornyMarcin ArchibaldDouglas D. OleksynJacek ReichPeter B. M. EissenstatDavid 2016 Effects of root pigmentation first- and second-order roots on P, Mg, and Ca content during decomposition under the "own" canopy species.