Microbial biomass plays a significant role in nutrient transformation and ecosystem conservation
under tropical and temperate climates,
as turnover of microbial biomass influences the
amount of N being stored or released, and thus
availability of N for plant uptake Moreover, rates of net mineralization and nitrification
during laboratory or field in situ incubation
provide an effective indicator of N availability
Therefore, there is a strong need
for more field studies on rhizosphere nutrient
cycling under different climates and tree species
for providing more realistic views of rhizosphere
processes