Important Farmland, Sierra Valley, California, 2010

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Abstract/Contents

Abstract
This polygon shapefile contains areas of important farmland in Sierra Valley, California for 2010. Important Farmland Maps show the relationship between the quality of soils for agricultural production and the land's use for agricultural, urban, or other purposes. A biennial map update cycle and notation system employed by FMMP captures conversion to urban land while accommodating rotational cycles in agricultural use. The minimum land use mapping unit is 10 acres unless specified. Smaller units of land are incorporated into the surrounding map classifications. In order to most accurately represent the NRCS digital soil survey, soil units of one acre or larger are depicted in Important Farmland Maps. For environmental review purposes, the categories of Prime Farmland, Farmland of Statewide Importance, Unique Farmland, Farmland of Local Importance, and Grazing Land constitute 'agricultural land' (Public Resources Code Section 21060.1). The remaining categories are used for reporting changes in land use as required for FMMP's biennial farmland conversion report. This layer is part of the 2010 California Farmland Mapping and Montoring Project.
Purpose
The Farmland Mapping and Monitoring Program (FMMP) provides data to decision makers for use in planning for the present and future use of California's agricultural land resources. The data is a current inventory of agricultural resources. This data is for general planning purposes and has a minimum mapping unit of ten acres.

Description

Type of resource cartographic, software, multimedia
Form Shapefile
Extent 0.887
Place Sacramento, California, US
Publisher California. Farmland Mapping and Monitoring Program
Publication date 2010
Language English
Digital origin born digital
Map data Scale not given. ; Custom projection W 120°26ʹ17ʺ--W 119°59ʹ55ʺ/N 39°51ʹ18ʺ--N 39°34ʹ40ʺW 120°26ʹ12ʺ--W 119°59ʹ55ʺ/N 39°51ʹ16ʺ--N 39°34ʹ41ʺ, Scale not given ; EPSG::4326

Creators/Contributors

Creator California. Farmland Mapping and Monitoring Program

Subjects

Subject Farming
Subject Land use
Subject Urbanization
Subject Agriculture
Subject Sierra Valley (Calif.)
Subject Sierra County (Calif.)
Subject Plumas County (Calif.)
Subject 2010
Subject Farming
Genre Geospatial data
Genre Cartographic dataset

Bibliographic information

Conceptual consistency report

The Important Farmland survey area is based on Natural Resources Conservation Service (NRCS) modern soil surveys covering most non-governmental lands in California; 49 counties are fully or partially surveyed at this time. Soil surveys specific to National Forests or other government land units are not surveyed. Beginning in 2000, SSURGO digital soil information was incorporated into the Alameda County Important Farmland data. Data subsequent to 2000 may have acreage and soil line differences due to incorporation of newer NRCS-SSURGO editions.
Prior to the availability of SSURGO, soil information was hand-transferred from the paper soil surveys. Older versions of the data have not been modified. The land use minimum mapping unit of ten acres has not changed, but digital soil units of down to one acre occur in the SSURGO-enhanced Important Farmland data. Due to the interaction of land use and soil components of the data, incorporation of SSURGO may also result in units of less than ten acres for categories such as Other Land (or Nonagricultural and Natural Vegetation). For more information on SSURGO, contact the USDA-Natural Resources Conservation Service: <http://www.nrcs.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/geo/>

WGS84 Cartographics This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Location https://purl.stanford.edu/fb169zx4899

Access conditions

Use and reproduction
This item is in the public domain. There are no restrictions on use.
Copyright
This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation

Preferred citation
California Farmland Mapping and Monitoring Program. (2010). Important Farmland, Sierra Valley, California, 2010. California Farmland Mapping and Monitoring Program. Available at http://purl.stanford.edu/fb169zx4899.

Collection

California Farmland Mapping and Monitoring Program, 2010

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