Forest Growth Services

Forest growth services refer broadly to the ability of a forest ecosystem to control the growth of trees, shrubs, and other types of vegetation. A number of important ecosystem services are dependent upon supporting services associated with forest growth – including future provision of building and energy products, carbon sequestration, and wildlife habitat.
Standing biomass is a proxy for the many services dependent upon forest stocking, including habitat and future timber potential.
The biomass regulation service at Hubbard Brook was represented by the estimated standing biomass in each watershed. 


The biomass regulation service at Turkey Lakes was represented by the estimated standing biomass in each watershed. 

Tree composition is an index calculated as the average density-weighted value of standing trees, where the "value" of each tree is calculated as the average stumpage price normalized to the value of the most valuable tree species.
In order to calculate composition index at Hubbard Brook, relative stumpage values as reported by three northern forest states (NH, NY, and ME) were averaged to determine relative regional stumpage values. 


In order to calculate composition index at TLW, relative stumpage values as reported by three northern forest states (NH, NY, and ME) were averaged to determine relative regional stumpage values.