FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2005

TITLE: US CENSUS OF AGRICULTURE - 1987 AGRICULTURE LANDUSE 

Geodataset Name:       AGLD87
Geodataset Type:       SHAPEFILE
Geodataset Feature:    POLYGON
GENERAL DESCRIPTION: 




This dataset contains estimates of land in agricultural production by county.






DATA SOURCE(S):                    U.S. Geological Survey, Water Resources Div. (WRD)
SCALE OF ORIGINAL SOURCE MAPS:     1:100,000
DATE OF AUTOMATION OF SOURCE:      Source - 1987
GEODATASET EXTENT:                 State of Florida

FEATURE ATTRIBUTE TABLES: 

Datafile Name: AGLD87.DBF
ITEM NAME WIDTH TYPE N. DECIMAL DEGREES
FID
4 OID ---
Shape
0 Geometry ---
CNTY_NAME
32 String ---
FIPS
5 Number ---
AREA_ACRES
16 Number 3
CA0398
12 Number ---
CA0400
12 Number ---
PCT0400
16 Number 3
CA0401
12 Number ---
PCT0401
16 Number 3
CA0402
12 Number ---
CA0460
12 Number ---
PCT0460
16 Number 3
CA0461
12 Number ---
PCT0461
16 Number 3
CA0464
12 Number ---
PCT0464
16 Number 3
CA0468
12 Number ---
CA0476
12 Number ---
CA0477
12 Number ---
CA0492
12 Number ---
PCT0492
16 Number 3
CA0496
12 Number ---
CA0500
12 Number ---
CA0516
12 Number ---
PCT0516
16 Number 3
CA0523
12 Number ---
CA0612
12 Number ---
CA0613
12 Number ---
CA0614
12 Number ---
PCT0614
16 Number 3
CA0615
12 Number ---
CA0618
12 Number ---
CA0619
12 Number ---
CA0622
12 Number ---
CA0623
12 Number ---
CA0629
12 Number ---
PCT0629
16 Number 3
CA0632
12 Number ---
CA0636
12 Number ---
CA3223
12 Number ---
PCT3223
16 Number 3
HECTARES
15 Number 2
DESCRIPT
12 Number ---
Perimeter
19 Float 11
Area
19 Float 11

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item

Item Description





FID

Internal feature number.
















Shape

Feature geometry.
















CNTY_NAME

County Name
















FIPS

Federal Information Processing Standard State and County Code
















AREA_ACRES

Total County Land Area from USGS 1:2,000,000 County Data Layer
















CA0398

Farms, 1987 (number)
















CA0400

Land in farms, 1987 (acres)
















PCT0400

Percent of county as land in farms, 1987
















CA0401

Land in farms, 1982 (acres)
















PCT0401

Percent of county as land in farms, 1982
















CA0402

Average size of farm, 1987 (acres)
















CA0460

Total cropland, 1987 (acres)
















PCT0460

Percent of county as total cropland, 1987
















CA0461

Total cropland, 1982 (acres)
















PCT0461

Percent of county as total cropland, 1982
















CA0464

Harvested cropland, 1987 (acres)
















PCT0464

Percent of county as harvested cropland, 1987
















CA0468

Cropland used only for pasture or grazing, 1987 (acres)
















CA0476

Cropland in cover crops, not harvested and not pastured in acres, 1987
















CA0477

Cropland in cover crops, not harvested and not pastured in acres, 1982
















CA0492

Total woodland, 1987 (acres)
















PCT0492

Percent of county as total woodland, 1987
















CA0496

Woodland pastured, 1987 (acres)
















CA0500

Woodland not pastured, 1987 (acres)
















CA0516

Pastureland, all types, 1987 (acres)
















PCT0516

Percent of county as pastureland, all types, 1987
















CA0523

Cropland placed under the conservation reserve program, 1987 (acres)
















CA0612

Farms with irrigation, 1987 (number)
















CA0613

Farms with irrigation, 1982 (number)
















CA0614

Land in irrigated farms, 1987 (acres)
















PCT0614

Percent of county as land in irrigated farms, 1987
















CA0615

Land in irrigated farms, 1982 (acres)
















CA0618

Harvested cropland, irrigated, 1987 (acres)
















CA0619

Harvested cropland, irrigated, 1982 (acres)
















CA0622

Other cropland, excluding cropland pastured, irrigated, 1987 (acres)
















CA0623

Other cropland, excluding cropland pastured, irrigated, 1982 (acres)
















CA0629

Irrigated land, 1987 (acres)
















PCT0629

Percent of county as irrigated land, 1987
















CA0632

Harvested cropland, irrigated, 1987 (acres)
















CA0636

Pastureland and other land, irrigated, 1987 (acres)
















CA3223

Land in orchards, total, 1987 (acres)
















PCT3223

Percent of county as land in orchards, total, 1987
















HECTARES

Polygon Area in Hectares  Added by FGDL
















DESCRIPT

Derived from CA0400 (see above)  Added by FGDL
















Perimeter

Length of perimeter in meters
















Area

Area of Polygon in meters
















USER NOTES:







GeoPlan relied on the integrity of the attribute information within the original data.












This coverage contains estimates of land in agricultural production in counties in the conterminous United States as reported in the 1987 Census of Agriculture (U.S. Department of Commerce, 1989a). Land in agriculture data are reported as either a number (for example, number of Farms), acres, or as a percentage of county area. Land in agriculture estimates were generated from surveys of all farms where $1,000 or more of agricultural products were sold, or normally would have been sold, during the census year.


Most of the attributes summarized represent 1987 data, but some information for the 1982 Census of Agriculture also was included.













A note concerning data scale:

Scale is an important factor in data usage. Certain scale 
datasetsare not suitable for some project, analysis, or
modelling purposes. Please be sure you are using the best
available data.

1:24000 scale datasets are recommended for projects that 
are at the county level.

1:24000 data should NOT be used for high accuracy base 
mapping such as property parcel boundaries.

1:100000 scale datasets are recommended for projects that 
are at the multi-county or regional level.

1:250000 scale datasets are recommended for projects that 
are at the regional or state level or larger.

Vector datasets with no defined scale or accuracy should 
be considered suspect. Make sure you are familiar with 
your data before using it for projects or analyses. Every 
effort has been made to supply the user with data 
documentation. For additional information, see the 
References sectionand the Data Source Contact section of 
this documentation. For more information regarding scale 
and accuracy, see our web pages at:

http://www.geoplan.ufl.edu/education.html






REFERENCES: 






United States Geological Survey:

www.usgs.gov







DATA LINEAGE SUMMARY: 









FGDL Personnel joined Census of Agriculture attribute data 
to existing County Boundaries using the County Name as Key 
Item.

- Dropped the following items: ST (state), PLYTYPE, WORKB. 
  These items were for USGS internal use only.
- Renamed CNTYNAME to CNTY_NAME
- Renames AREA.ACRES to AREA_ACRES
- Added items HECTARES and DESCRIPT
Process Date: Unknown


Corrected Sumter/Hernando border and Polk county boundary.
Process Date: 20041000









MAP PROJECTION PARAMETERS: 



Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000




DATA SOURCE CONTACT (S):








Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:




U.S. Geological Survey, Water Resources Div. (WRD)
USGS WRD
P.O. Box 25046, Denver Federal Center, Bldg. 25
Lakewood, CO
80225
303-236-5939


www.usgs.gov









FGDL CONTACT:

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

Contact FGDL: 

      Technical Support:	        http://www.fgdl.org/fgdlfeed.html
      FGDL Frequently Asked Questions:  http://www.fgdl.org/fgdlfaq.html
      FGDL Mailing Lists:		http://www.fgdl.org/fgdl-l.html
      For FGDL Software:                http://www.fgdl.org/software.html