data and maps summarizing change over time
With more than twenty years of data in most locations, Important Farmland Maps are now beginning to provide trend and context information to better inform land use decisions in California. This section of the web site will grow along with the archive of biennial information, so please come back regularly!
Statistical Summaries and Reports
FMMP is legislativley mandated to update maps of its survey area, now nearly 50 million acres in size, every two years. Long-term studies are of high interest but must take a lower priority to the biennial production mandate. Basic statistical summaries are available (XLS format) for county and statewide data:
Maps and Graphics
 Graphical representation of change is available in two primary formats, as Regional Urbanization maps and as Time Series animations:
- Regional Urbanization Maps depict land that has become urban in yellow along with current Important Farmland data. These large PDF maps can be viewed through your web browser; all or part of each map can be printed. The PDF files range from 6 to 17 Mb in size. Current maps include the Sacramento area, San Francisco Bay region, and the San Joaquin Valley. A PDF poster depicting similar change in select Southern California cities is also available on the FTP site.
- Time Series Images are animated GIF files showing land use conversion over time, along with background information on 17 locations in California.
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