Upon the filing of identical copies of a resolution of the governing board with the superintendent of schools, auditor, and treasurer of the county specifying the purpose or purposes of a special reserve fund, the fund shall be established for such purpose or purposes. From time to time thereafter, the governing board may file identical copies of resolutions specifying additional purposes of the fund or withdrawing any purpose previously designated. The auditor and treasurer shall transfer from the general fund to the special reserve fund of the district such amounts as may be specified by the governing board during the fiscal year.