ystem functions Examples
             Gas regulation Regulation of atmospheric chemical composition CO2/O2 balance, O3 for UV protection
             Climate regulation Regulation of global temperature, precipitation Greenhouse gas regulation
             Disturbance regulation Damping of ecosystem response to environmental fluctuation Storm protection, flood control, drought recovery
             Water regulation Regulation of hydrological flows Providing water for agricultural industrial, and human uses
             Water supply Storage and retention of water Provisioning of
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