Central Valley Aquifer, Chapters A and B - MAE Class Websites

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0 50 100 Miles
0 50 100 Kilometers
Shaded relief derived from U.S. Geological Survey
National Elevation Dataset, 2006. Albers Equal Area Conic Projection
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Fraction of total area by land-use type
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Model Development 141
EXPLANATION
Land use—1968-78
Land use type—
1 Water
2 Urban
3 Native vegetation
4 Orchard, groves and vineyards
5 Pasture/Hay (none shown)
6 Row crops (none shown)
7 Small grains (none shown)
8 Idle/fallow
9 Truck, nursery and berry crops
10 Citrus and subtropical
11 Field crops
12 Vineyards
13 Pasture
14 Grain and hay
15 Feed lots and diaries (none shown)
16 Deciduous fruits and nuts
17 Rice
18 Cotton
19 Developed (none shown)
20 Cropland and pasture
21 Cropland (none shown)
22 Irrigated row and field crops (none shown)
Water-balance subregion boundaries
and identifier—See table C1
Active model grid boundary—
See figure C1
Figure C9. Virtual crops for 1973, including pie chart of percentage of different virtual crops (sources: U.S. Geological Survey, 1990;
California Department of Water Resources, 2000). The water-balance subregions are described in .
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