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''Pinus radiata'', family Pinaceae, the Monterey pine, insignis pine or radiata pine, is a species of pine native to the Central Coast of California and Mexico (Guadalupe Island and Cedros island). ''Pinus radiata'' is a versatile, fast-growing, medium-density softwood, suitable for a wide range of uses. Its silviculture is highly developed, and is built on a firm foundation of over a century of research, observation and practice.〔 Radiata pine is often considered a model for growers of other plantation species.〔 It is the most widely planted pine in the world, valued for rapid growth and desirable lumber and pulp qualities. Although ''Pinus radiata'' is extensively cultivated as a plantation timber in many temperate parts of the world,〔(Pinus radiata (D. Don 1836) ), Gymnosperm Database〕 it faces serious threats in its natural range.〔("Status of Native Monterey Pine (Pinus radiata) Ecosystems" )〕 ==Distribution== It is native to three very limited areas located in Santa Cruz, Monterey Peninsula, and San Luis Obispo Counties. It is also found as the variety ''Pinus radiata'' var. ''binata'' or Guadalupe pine on Guadalupe Island, and a possibly separable ''P. radiata'' var./subsp. ''cedrosensis'' on Cedros Island, both in the Pacific Ocean off the west coast of the northern Baja California Peninsula in Mexico. In Australia, New Zealand, and Spain it is the leading introduced tree〔Scott, C. W. 1960. Pinus radiata. Food and Agriculture Organization of the United Nations, Forestry and Forest Products Study 14. Rome, Italy. 328 p. cited in www.na.fs.fed.us/pubs/silvics_manual/Volume_1/pinus/radiata.htm, Philip M. McDonald and Robert J. Laacke. "Monterey Pine" accessed 2013-09-14〕 and in Argentina, Chile, Uruguay, Kenya, and South Africa it is a major plantation species. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「pinus radiata」の詳細全文を読む スポンサード リンク
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