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GIS Library Contents - Metadata

Agricultural Land Use - Historic

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This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as feature count and date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.

Descriptive nameAgricultural Land Use - Historic
File nameag_hist
Spatial domainEastern Pima County
AbstractAG_HIST represents a "footprint" of lands across Pima County presently or formerly dedicated to agricultural production. Original boundaries were derived from 7 source document reports concerning historic agricultural land use in Pima County authored by PAG. Refinements were made to the layer in 2008 using the PAG208 "VEG1" and "VEG2" fields under the review of Julia Fonseca at PCPRNR. See the PAG208 layer's metadata page to find lookup tables associated with values in these two fields. See more information.
Known errors/qualificationsag_hist includes interior (island) polygons that must be filtered out by selecting records where ITEM or SOURCE are not null.

Agricultural use is not strictly interpreted as the tilling and cultivation of land for direct agricultural production. In some areas, most notably the Buenos Aires NWR, historic agricultural use was defined by the blading of lands and the application of herbicides to improve pasture grasses for domestic livestock.

The version stored in the library previous to being updated in 2008 is archived in \\gislib\specproj\jfonseca\prk0139\\original_data
Before being named AG_HIST, this layer was known as IRRIG_ALL.
Feature typepolygon
Feature count 488
Thumbnail Map ag_hist.pdf PDF file format   (476,656 bytes, PDF created 07/19/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationUA Arid Lands
Source contact
Source document or file name
Source date19991227
Source scale
Source formatUnknown
Date of last data update
(This date may not be current.)
Last data update byCory Jones
Date/time last touched - Meaning? 2021-04-05  11:12 PM - Enterprise GDB
  2021-04-05  11:12 PM - Shapefile - Library input format
  See coverage files, if any, for date.
LineagePerformed UNION process to create output layer of the previous AG_HIST coverage and features from the PAG208 coverage where "VEG1 = 200-299". After review by Julia Fonseca, particular features were deleted from the updated coverage.
Added new field called SOURCE to document whether features are part of PAG208 SELECT or from the original 6 source document reports concerning historic agricultural land use in Pima County authored by PAG.
On maintenance?No
Maintenance organization
Maintenance description
Original conversion byCory Jones
Pima County ITD GIS contactCory Jones
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? No

See Metadata Field Descriptions.
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