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arable land
Arable land (from Latin ''arabilis'', "able to be plowed") is, according to one definition, land ''capable'' of being ploughed and used to grow crops.〔''Oxford English Dictionary'', "arable, ''adj.'' and ''n.''" Oxford University Press (Oxford), 2013.〕 In Britain, it was traditionally contrasted with pasturable lands such as heaths which could be used for sheep-rearing but not farmland.
A quite different kind of definition is used by various agencies concerned with agriculture. In providing statistics on arable land, the FAO and the World Bank〔The World Bank. Agricultural land (% of land area) http://data.worldbank.org/indicator/AG.LND.AGRI.ZS 〕 use the definition provided in the glossary accompanying FAOSTAT: “Arable land is the land under temporary agricultural crops (multiple-cropped areas are counted only once), temporary meadows for mowing or pasture, land under market and kitchen gardens and land temporarily fallow (less than five years). The abandoned land resulting from shifting cultivation is not included in this category. Data for ‘Arable land’ are not meant to indicate the amount of land that is potentially cultivable.”〔FAOSTAT. (database of the Food and Agriculture Organization of the United Nations ) Glossary. http://faostat3.fao.org/mes/glossary/E 〕 A briefer definition appearing in the Eurostat glossary similarly refers to actual, rather than potential use: “land worked (ploughed or tilled) regularly, generally under a system of crop rotation.”〔Eurostat. Glossary: Arable land. http://ec.europa.eu/eurostat/statistics-explained/index.php/Glossary:Arable_land 〕
==Arable land area==
In 2008, the world's arable land amounted to 1,386 M ha, out of a total 4,883 M ha land used for agriculture. This figure and the data below refer to arable land as defined by the FAO (above). Arable land in the accompanying map refers to a definition used by the US CIA,〔Central Intelligence Agency. The world factbook. Field listing. https://www.cia.gov/library/publications/the-world-factbook/fields/2097.html 〕 which resembles that of the FAO.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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