FMMP and Other Agricultural Statistics
A number of different types of agricultural statistics are collected to determine the status of land or water resources, economic factors, or farming practices. Questions often arise as to the differences in statistics between one source and another. Following are brief comparisons of the most commonly cited statistics.
| Source |
Data |
Collection Cycle |
Data Collection Method |
GIS Data Available? |
|
National Statistics |
| USDA |
National Resources Inventory (NRI) |
5 year cycle--moving to annual system
(newest national 2003, regional/CA data 1997) |
photo/field interpretation of sample points |
no |
| USDA |
Census of Agriculture |
5 year cycle
(newest 2002, 2007 data being collected) |
mailed landowner survey |
no |
|
California State Statistics |
| CDFA |
Agricultural Resource Directory |
annual |
county commissioner reports |
no |
| DWR |
Land Use Surveys |
varies |
photo/field interpretation |
yes |
| DOC |
Farmland Mapping Program |
biennial
(2006 being released) |
photo/field interpretation |
yes |
Due to the definition of terms and data collection methods, statistics for irrigated land, urbanization, or other factors vary substantially. Please contact us if you are working with this data and have specific questions.