Is there a tree economics spectrum of decomposability?

The plant economics spectrum integrates trade-offs and coordination in resource traits among species within and between organs, and affects ecosystem processes such as litter decomposition. This PES is currently based on trait variation among a wide range of plant types and growth forms. Here we ask whether the PES also features within the same growth form, i.e. within and between organs among temperate tree species. If so, is there a tree economics spectrum (TES) of decomposability driving the decomposition rates across the coarse branches, twigs and leaves of different species? And how robust would this TES of decomposability be to different environmental conditions?