The Future is Now: Central Valley Farmland at the Tipping Point?
Introduction
Executive Summary
Resumen Ejecutivo
Current Trends
     Population Growth
  Farmland Use and Development
  Quality of Farmland Developed
  Efficiency of Urban Development
  "Ranchettes" & Other Rural Development
  Agricultural Trends
Local Plans & Performance
  Analytical Method
  Sutter County
  Sacramento County
  Yolo County
  San Joaquin County
  Stanislaus County
  Merced County
  Madera County
  Fresno County
  Tulare County
  Kings County
  Kern County
Where is The Valley Heading?
Time for Change
  Ideas for Change
What You Can Do
  Rank Your County
  Local Official Contacts
  Local Organizations
  Support AFT
Methodology & Background Data
Acknowledgments
About AFT in California

Land Classification System

The Farmland Mapping & Monitoring Program (FMMP) of the Department of Conservation in the California Resources Agency classifies land into the following categories. For simplicity, this report refers to the first three categories as "high quality farmland."

Prime Farmland - Farmland with the best combination of physical and chemical features able to sustain long term agricultural production. This land has the soil quality, growing season, and moisture supply needed to produce sustained high yields. Land must have been used for irrigated agricultural production at some time during the four years prior to the mapping date.

Farmland of Statewide Importance - Farmland similar to Prime Farmland but with minor shortcomings, such as greater slopes or less ability to store soil moisture. Land must have been used for irrigated agricultural production at some time during the four years prior to the mapping date.

Unique Farmland - Farmland of lesser quality soils used for the production of the state's leading agricultural crops. This land is usually irrigated, but may include nonirrigated orchards or vineyards as found in some climatic zones in California. Land must have been cropped at some time during the four years prior to the mapping date.

Farmland of Local Importance - Land of importance to the local agricultural economy as determined by each county's board of supervisors and a local advisory committee.

Grazing Land - Land on which the existing vegetation is suited to the grazing of livestock. This category was developed in cooperation with the California Cattlemen's Association, University of California Cooperative Extension, and other groups interested in the extent of grazing activities. The minimum mapping unit for Grazing Land is 40 acres.

Urban & Built-Up Land - Land occupied by structures with a building density of at least 1 unit to 1.5 acres, or approximately 6 structures to a 10-acre parcel. This land is used for residential, industrial, commercial, construction, institutional, public administration, railroad and other transportation yards, cemeteries, airports, golf courses, sanitary landfills, sewage treatment, water control structures, and other developed purposes.

Other Land - Land not included in any other mapping category. Common examples include low density rural developments; brush, timber, wetland, and riparian areas not suitable for livestock grazing; confined livestock, poultry or aquaculture facilities; strip mines, borrow pits; and water bodies smaller than forty acres. Vacant and nonagricultural land surrounded on all sides by urban development and greater than 40 acres is mapped as Other Land.