A plantation is a large farm or estate, usually in a tropical or subtropical country, where crops that are not consumed for food are grown for sale in distant markets, rather than for local consumption. Such crops include cotton, coffee, tobacco, sugar cane, sisal, and various oil seeds and rubber trees. Farms that produce alfalfa, Lespedeza, clover, and other forage crops are usually not called plantations. The term "plantation" has usually not included large orchards, but has included the planting of trees for lumber. A plantation is always a monoculture over a large area and does not include extensive naturally occurring stands of plants that have economic value. The use of the term is governed by the linguistic conventions of natural language and does not have the rigorous consistency of formal language. One of the earliest examples of a plantation was the latifundia. In antiquity, these produced large quantities of wine and olive oil for export.
A plantation efficiently produces its crop because of economy of scale. Protectionist policies and natural comparative advantage have contributed to determining where plantations have been located. Plantation agriculture grew rapidly with the increase in international trade and the development of a worldwide economy that followed the expansion of European colonial empires. Like every economic activity, it has changed over time. Earlier forms of plantation agriculture were associated with large disparities of wealth and income, foreign ownership and political influence, exploitative social systems such as indentured labor, and in the extreme case, slavery. The history of the environmental, social and economic issues relating to plantation agriculture are covered in articles that focus on those subjects.
Industrial plantations are established to produce a high volume of wood in a short period of time. Plantations are grown by state forestry authorities (for example, the Forestry Commission in Britain) and/or the paper and wood industries and other private landowners (such as Weyerhaeuser and International Paper in the United States, Asia Pulp & Paper (APP) in Indonesia). Christmas trees are often grown on plantations as well. In southern and southeastern Asia, rubber, oil palm, and more recently teak plantations have replaced the natural forest.
Industrial plantations are actively managed for the commercial production of forest products. Individual blocks are usually even-aged and often consist of just one or two species. The plants used for the plantation are often genetically improved, e.g. the seeds used may originate from seed orchards. These species can be exotic or indigenous. Industrial plantations are usually large-scale.Wood production on a tree plantation is generally higher than that of natural forests. While forests managed for wood production commonly yield between 1 and 3 cubic meters per hectare per year, plantations of fast-growing species commonly yield between 20 and 30 cubic meters or more per hectare annually; a Grand Fir plantation at Craigvinean in Scotland has a growth rate of 34 cubic meters per hectare per year .
Sunday, May 31, 2009
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