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HISTORY OF CALIFORNIA SOIL MAPPING

The denizens of soil scientists mapping the astonishingly productive and widely varied soils of California have included several famous and a few brilliant amongst hundreds of hardworking men and women. Up and down the mountains and valleys of California they have traversed to uncover, and then record for others, the secrets of the soil.

Table of California's Soil Mapping Efforts
Decade
Overview
Link to Text and Photos
1800s Hilgard at UC Berkeley. Formation of the Bureau of Soils.

Link to 1800s

1900s

Hilgard debates Bureau Chief Whitney about Soil Properties. Macy Lapham Records early California Soil Mapping Activity.

Link to 1900s

1910s Charlie Shaw coordinates Cooperative Agreement between Division of Soils and University of California. Reconnaisance Surveys Completed.

Link to 1910s

1920s

Soil Classification for California developed by Charlie Shaw. Detailed soil mapping in many counties.

Link to 1920s

1930s

 

 

1940s

 

 

1950s

 

 

1960s

 

 

1970s

 

 

 

soilmappinghistory.htm updated June 4, 2007
    Dedicated to the education, application, and advancement of soil science in California.    
Outline of California map, with inset horizons of San Joaquin State Soil

Professional Soil Scientists Association of California
P.O. Box 5972
Vacaville, CA 95696
Phone: (707) 447-2135 Ext. 2
Email: info@pssac.org

Kim Chang building a San Joaquin State Soil monolith
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