5. Conclusions
Our results suggest that each inflorescence litter type provides a
specific elemental stoichiometric fingerprint, probably due to
differential inflorescence litter degradation processes and differential
microbial activity combined with the characteristics of the type of soil
to which it is added. Our results suggest that nutrient assimilation and
immobilization by microbial activity and/ or soil adsorption mechanisms
are faster when the litter of P. piscipula is added, compared to
that of J. mimosifolia , probably due to different levels of
lability and content of recalcitrance substrates for each inflorescence
litter. The P. piscipula inflorescence litter appears to be
richer in labile compounds such as cellulose, proteins and nucleic
acids, and the J. mimosifolia material is rich in oleic acid.
However, further studies are necessary to prove this premise of relative
recalcitrance material, and the existence of microorganisms associated
with in these substrates, and in combination with soil mixtures. This
study proposes to continue with research evaluating inflorescence
litters in urban areas as raw material for soil enriching and / or
improving at local scales.