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The Farmland Mapping and Monitoring Program (FMMP) provides data to decision makers for use in planning the present and future use of California's agricultural land resources. The data is a current inventory of agricultural resources for general planning purposes and has a minimum mapping unit of ten acres. |
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The Farmland Mapping and Monitoring Program (FMMP) provides data to decision makers for use in planning the present and future use of California's agricultural land resources. The data is a current inventory of agricultural resources for general planning purposes and has a minimum mapping unit of ten acres. |
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A citation for the Farmland Mapping and Monitoring Program on any map products, graphic media, or data analyses based on the data is appreciated. |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Established in 1982, Government Code Section 65570 mandates FMMP to report biennially on even numbered years, the conversion of farmland and grazing land, and to provide maps and data to local government and the public. The Important Farmland survey area is based on Natural Resources Conservation Service (NRCS) modern soil surveys covering most non-governmental lands in California; 51 counties are fully or partially surveyed during the 2020 map update. Soil surveys specific to National Forests or other government land units are not surveyed.</SPAN></P><P><SPAN>Prior to the availability of SSURGO or gSSURGO, 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 less than one acre occur in the gSSURGO-enhanced Important Farmland data. The data between 1998 and 2014 incorporates SSURGO and the interaction of land use and soil components resulted in units of less than ten acres for categories such as Other Land. The 2016 data incorporates gSSURGO and will no longer merge resulting polygons less than one acre for any map category for that and future updates. For more information on gSSURGO, contact the USDA-Natural Resources Conservation Service: https://www.nrcs.usda.gov</SPAN></P><P><SPAN STYLE="font-weight:bold;">Statewide initial mapping year - 1984.</SPAN></P><P><SPAN STYLE="font-weight:bold;">Geodetic Model:</SPAN></P><P><SPAN STYLE="font-weight:bold;">1984 to 2012 - North American Datum of 1927</SPAN></P><P><SPAN STYLE="font-weight:bold;">2014 to 2020 - North American Datum of 1983</SPAN></P><P><SPAN STYLE="font-weight:bold;">2020 county boundaries: </SPAN><SPAN>California Department of Forestry and Fire Protection, Fire and Resource Assessment Program (FRAP) 2018 version (cnty 18_2) of California Counties GIS data. https://frap.fire.ca.gov</SPAN></P><P><SPAN STYLE="font-weight:bold;">2020 Imagery source: </SPAN><SPAN>USDA Farm Service Agency - National Agricultural Imagery Program (NAIP); Summer 2020; True color; 1 meter resolution. </SPAN><SPAN>https://www.fsa.usda.gov</SPAN></P><P><SPAN>Google Incorporated; Various dates; True color; Google Maps and Streetview. </SPAN><SPAN>https://www.google.com/maps</SPAN></P><P><SPAN /></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN STYLE="font-size:12pt">This data does not reflect general plan or zoning designations, city limit lines, changing economic or market conditions, or other factors which may be taken into consideration when land use policies are determined. This data is not designed to be used for parcel specific planning purposes due to its scale and the size of the minimum mapping unit (10 acres).</SPAN></P></DIV></DIV></DIV> |
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2020 Statewide Important Farmland |
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["California Important Farmland","Statewide."] |
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en-US |
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150000000 |
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