Terrain water transpiration factor (Water Overlay)

Icon	Attribute	Unit	Layer	Range	Description
	WATER_TRANSPIRATION_FACTOR	factor	Surface		How fast this terrain can evaporate water from the ground. The weather's evaporation speed is multiplied by this factor to determine the rate of transpiration.

Like buildings configured as crops and foliage, terrains representing plants can use plant-related attributes to draw and evaporate groundwater.

Notes

For plants to evaporate water, both the ROOT_DEPTH_M and the WATER_TRANSPIRATION_FACTOR must be appropriately configured.
When a Building is present in any given location, the values for evaporation in the ground will overrule any values set by terrain in the same location. To model ground evaporation without a Building, set the attributes of the Building on the applicable terrain type instead.
Groundwater level reduction is inversely proportional to the WATER_STORAGE_PERCENTAGE.
Transpiration is zero when no building is present and the terrain's WATER_TRANSPIRATION_FACTOR is 0.
Can be configured as a seasonal factor, represented by an array of four values, one for each growth season. This allows for more evaporation during a crops growth season and less during the winter.