EcoMetrix is a tool used to quantify the impacts and benefits to ecosystem functions and ecosystem services that result from development or restoration activities. It does this by quantifying how well a particular ecosystem function is performed on the landscape. For each relevant function, whether physical (abiotic) or biological (biotic), EcoMetrix calculates an ecosystem functional performance score using algorithms developed for the EcoMetrix database. When functional performance is quantified in this way, the outputs represent a relative percent performance for the function. This percent performance can be calculated for a specific study area in functional hectares and/or in ecosystem services hectares. Outputs can be expressed in the context of multiple ecosystem services performed on a given site, such as the ability of the site to support food production (e.g., resident fish), or the extent to which a proposed action could impair climate regulation services (e.g., a reduction in soil carbon sequestration because of increased tillage). MODULES: Water provision, water regulation, climate regulation and others cultural services.