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Imperial Irrigation District

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Presentation on theme: "Imperial Irrigation District"— Presentation transcript:

1 Imperial Irrigation District
Soils of the Imperial Valley Steve Burch Engineer Tech I / Soil Scientist Ag Water Science Unit Ag Water Management Section (760)

2 Soil Components Mineral Particles (Sand, Silt, Clay)
Texture Organic Matter (OM) Pore Space (Air & Water) Salts Nutrients / Other Chemical Compounds Storage Reservoir / Anchor

3 Soil Texture Triangle Clay Sand Silt

4 Soil Structure Types

5 Typical air-water-soil proportions of a typical loam soil at field capacity.

6 The matrix of a soil holds water by surface tension, just like capillary tubes.

7 Clay colloid with surrounding soil water
and precipitates in the soil water.

8 Soil Horizons

9 Where Do Soils Come From?
Formed in Place Transported from Elsewhere Wind Water Glaciers

10

11

12

13

14 Dealing with Hard/Tough Soils
Problem of Soil Physical Properties or Chemistry? Internal soil drainage Soil Texture/Structure Salinity Add Soil Amendments Gypsum Sulfur Organic Matter REGARDLESS Leach

15 Imperial Irrigation District
Questions?

16 Imperial Irrigation District
Thank You

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