The population explosion has raised the demand of housing facilities. Therefore, to fulfill housing needs the construction of houses is going on utilising the agricultural land.
Agricultural land is typically land devoted to agriculture,[1] the systematic and controlled use of other forms of life—particularly the rearing of livestock and production of crops—to produce food for humans.[2][3] It is thus generally synonymous with both farmland or cropland, as well as pasture or rangeland.
The United Nations Food and Agriculture Organization and others following its definitions, however, also use agricultural land or agricultural area as a term of art, where it means the collection of:[4][5]
"arable land" (a.k.a. cropland): here redefined to refer to land producing crops requiring annual replanting or fallowland or pasture used for such crops within any five-year period
"permanent cropland": land producing crops which do not require annual replanting
permanent pastures: natural or artificial grasslands and shrublands able to be used for grazing livestock
This sense of "agricultural land" thus includes a great deal of land not devoted to agricultural use. The land actually under annually-replanted crops in any given year is instead said to constitute "sown land" or "cropped land". "Permanent cropland" includes forested plantations used to harvest coffee, rubber, or fruit but not tree farms or proper forests used for wood or timber. Land able to be used for farming is called "cultivable land". Farmland, meanwhile, is used variously in reference to all agricultural land, to all cultivable land, or just to the newly restricted sense of "arable land". Depending upon its use of artificial irrigation, the FAO's "agricultural land" may be divided into irrigated and non-irrigated land.
In the context of zoning, agricultural land or agriculturally-zoned land refers to plots that are permitted to be used for agricultural activities, without regard to its present use or even suitability. In some areas, agricultural land is protected so that it can be farmed without any threat of development. The Agricultural Land Reserve in British Columbia in Canada, for instance, requires approval from its Agricultural Land Commission before its lands can be removed or subdivided
Area
Under the FAO's definitions above, agricultural land covers 38.4% of the world's land area as of 2011. Permanent pastures are 68.4% of all agricultural land (26.3% of global land area), arable land (row crops) is 28.4% of all agricultural land (10.9% of global land area), and permanent crops (e.g. vineyards and orchards) are 3.1% (1.2% of global land area).[7][8]
Total of land used to produce food: 49,116,227 square kilometers or 18,963,881 square miles
Arable land: 13,963,743 square kilometers or 5,391,431 square miles
Permanent crops: 1,537,338 square kilometers or 593,570 square miles
Permanent pastures: 33,585,676 square kilometers or 12,967,502 square miles
Globally, the total amount of permanent pasture according to the FAO has been in decline since 1998,[9], in part due to a decrease of wool production in favor of synthetic fibers (such as polyester) and cotton.[10]
The decrease of permanent pasture however does not account for gross conversion (e.g. land extensively cleared for agriculture in some areas, while converted from agriculture to other uses elsewhere) and more detailed analyses have demonstrated this. For example, Lark et al. 2015 found that in the United States cropland increased by 2.98 million acres from 2008-2012 (comprising 7.34 million acres (29,700 km2) converted to agriculture, and 4.36 million acres (17,600 km2) converted from agriculture