Major perturbations may disturb the biogeochemical
cycle through temporal and spatial aberration (decoupling)
of biomass production and mineralization
(Ulrich, 1987). The stability of sites following disturbance
(natural or anthropogenic) is therefore closely
related to the ability of the system to recycle nutrients
and maintain structural and biotic integrity. Hence, perhaps
the most important aspect of stability in managed
forest ecosystems is the ability to retain soil fertility
following pollution (soil acidification) and management-
induced perturbation (harvest, cultivation).
Monitoring nutrient loss rates may provide a useful
indication of ecosystem response to disturbance.