1. Investment income: Water conservancy funds can increase their income through investment income, such as purchasing financial products such as stocks, funds and bonds.

2. Power generation income: most water conservancy projects are oriented to hydropower generation, so power generation income has also become one of the main sources of income for water conservancy funds.

3. Income from the sale of idle water resources: Water conservancy departments can also obtain certain capital income by selling idle water resources.

4. Government appropriation: The government will invest some funds for the construction and operation of water conservancy. The water conservancy department can increase the total amount of water conservancy funds by applying for government funding.

5. Liquidity: In daily operation, the water conservancy department needs certain liquidity for material procurement and personnel expenses. Liquidity can also be counted as a part of water conservancy funds.