The STATSGO soil map was intersected with the binary land-use map
to create a derivative map containing the distribution of soil map units by agricultural land use.
* produce a potential land-use map
based on land suitability and crop priorities.
This survey is generally conducted by representatives of state and federal agencies, who collect some information about crop types, land-use changes and agricultural land management for a subset of all agricultural land in the Central Valley, for example, land-use maps
by the Department of Water Resources, State of California (www.water.ca.gov/landwateruse/lusrvymain.cfm).
Consider the scale of data commonly used for land-use maps
. These base maps often are created from satellite data in which the smallest area a viewer can see, called a pixel, is 90 meters.
While land-use maps
are not border police, they do establish who occupies a piece of land and how it is being used, while proving that it is not empty and up for grabs.
The Russians' existing land-use maps
were excellent--maps showing existing vegetative cover, soil maps, topographic maps, demographic maps, and geologic maps.