Changes in Irrigated Acres, 1982-1997
This table shows the change in irrigated acres for each five year period from 1982 to 1997 for each Farm Production Region. This table is associated with map #5115.
Source: National Resources Inventory, 1997
NRI sample data are generally reliable at the 95% confidence interval for state and certain broad substate area analyses. Generally, analyses that aggregate data points by smaller geographic areas and/or more specific criteria result in fewer data points for each aggregation and therefore less reliable estimates. NRI maps reflect national patterns rather than site- specific information.
Land that shows evidence of being irrigated during the year of the inventory or during two or more years out of the last four years. Water is supplied to crops by ditches, pipes, or other conduits. Water spreading is not considered irrigation; it is recorded as a conservation practice. [NRI-97]
Product ID: 5842
Production Date: 12/19/00
Product Type: Table
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