"Nature and origin of the service";"Spatial unit"
"Generated by specific species";"Suitable habitats"
"Based on biophysical resources";"Natural regions"
"Depending on specific landscape mosaic";"Spatial unit with comparable spatial features"
"Generated by an abiotic process";"Area of influence of this process"
"Dependent on specific land management practices";"Management units"
"Rooted in history and culture";"Units of the historic cultural landscape"
"Hydrologic services";"Water catchment areas"
"Demand for ecosystem services by people";"Administrative units"