There are several different definitions and classifications of ecosystem services. Similar to the Millennium Ecosystem Assessment (MA), the UK NEA classifies services along functional lines into the categories of:
Provisioning services: The products obtained from ecosystems. For example,
| Regulating services: The benefits obtained from the regulation of ecosystem processes. For example,
| Supporting services: Ecosystem services that are necessary for the production of all other ecosystem services. For example,
| Cultural services: The non-material benefits people obtain from ecosystems. For example, through
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