Tributaries increase the economic benefits of rivers because they provide more opportunities for states to trade, develop agriculture, and to develop industries from waterways. Also tributaries help to increase the fertility of agricultural lands which can also support economic development. Tributaries of rivers can also be used to power dams to create electricity supporting economic growth.
Tributaries enhance the economic benefits of rivers by increasing water supply, improving agricultural productivity, facilitating trade, and supporting hydropower generation and tourism. They contribute to a richer ecosystem that ultimately benefits local economies and promotes sustainable development.
;