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Water supply

Water supply services reflect the combined ecosystem contributions of water flow regulation, water purification, and other ecosystem services to the supply of water of appropriate quality to users for various uses including household consumption. This is a final ecosystem service.

Benefits:

Clean water

Ecosystem service:

Water supply

Natural capital:

Water

Likely response	Effect of variability on services provision	Human action or natural variation	Timescale	Spatial Characteristics
			Short - Long term	Regional to global - impacts can affect downstream countries
			Short - Long term	Local to regional - land use change may have local and more wide ranging effects
			Long term	Local to regional - the areas where droughts occur
			Short - Long term	Local to regional - surface water abstraction could lead to impacts in downstream regions

Likely response	Effect of variability on services provision	Human action or natural variation	Timescale	Spatial Characteristics
			Short term	Local - water quality within the water column can have different properties due to local physical features
			Short - Long term	Local - areas where pollutant inputs are observed can be impacted along with downstream regions
			Short - Long term	Local - areas where pollutant inputs are observed can be impacted
			Short - Long term	Local to regional - impacts can be in the immediate vicinity but also can affect neighboring regions

Water supply

Benefits:

Ecosystem service:

Natural capital:

Ecosystem components and types:

Mechanisms of change in state:

Change in species composition

Change in species population size

Droughts

Pollutants concentration change

Sea level rise

Sea surface temperature

Storms

Volcanoes