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- Info
A GIS model for evaluation of water conservation strategies
| Author: |
Wagner, D. |
| Date: |
1994 |
| Periodical: |
In: Klein, Kathleen C.; Williams, David, J., eds. Integrated Watershed Management in the South Platte Basin: Status and Practical Implementation: 1994 South Platte Forum; 1994 October 26-27; Greely, Co. Fort Collins, CO: Colorado State University, Colorado Water Resources Research Intsitute |
| Abstract: |
Water management techniques for large river basins must account for temporal and spatial consumptive use patterns for a variety of vegetation, crop types, and soil/water surfaces for municipal, industrial and agricultural uses. The direct computation of evapotranspiration for nonagricultural vegetation has been limited due to the lack of crop coefficients for vegetation types other than for common irrigated agricultural crops. A model has been developed to estimate daily and annual evapotranspiration for all the vegetation, water and soil types spanning a river basin. The geographic information system based model uses remotely sensed satellite data and other GIS data layers. The paper and conference presentation describe the model and the use of the model to apply and evaluate six different water conservation technology scenarios for the Poudre River basin. The application of water conservation technologies in the river basin is motivated by the increasing urbanization and the resultant conversion of agricultural land and agricultural water supplies to industrial and domestic use. The water conservation technologies include urban consumptive and non-consumptive modeling under metered and non metered conditions, agricultural water conservation techniques including taking land out of production, conversion of surface-to-sprinkler irrigation, SURGE irrigation implementation and changing crop types to more water-conserving crops. The GIS model can study the river basin on a farm-by-farm, irrigation district, ditch head gate or urban growth area. |
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