Assertion: alluvial fan | /r/HasProperty | principal groundwater source
Facets:
value: for the sustenance of life
type: PURPOSE
value: for irrigation farming
type: PURPOSE
Source sentences:
text: Alluvial fans are of practical and economic importance to society, particularly in arid and semiarid areas where they may be the principal groundwater source for irrigation farming and the sustenance of life.
text: Alluvial fans are of practical and economic importance to society, particularly in arid and semiarid areas where they may be the principal groundwater source for irrigation farming and the sustenance of life.