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A tree plantation, forest plantation, plantation forest, timber plantation or tree farm is a forest planted for high volume production of wood, usually by planting one type of tree as a monoculture forest. The term tree farm also is used to refer to tree nurseries and Christmas tree farms.
The American Tree Farm System (ATFS) is the largest and oldest woodland certification system in America. It is internationally recognized by the Programme for the Endorsement of Forest Certification and meets strict third-party certification standards.
A Christmas tree farmer in the U.S. state of Florida explains the pruning and shearing process of cultivation to a government employee.. Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for use as Christmas trees.
The American Tree Farm system is an organized collection of private landowners interested in effectively managing their woodland properties. Founded in 1941, the ATFS consists of more than 27,500,000 acres (111,000 km 2 ) of privately owned forest in 46 states.
A tree-pyramid (T-pyramid) is a "complete" tree; every node of the T-pyramid has four child nodes except leaf nodes; all leaves are on the same level, the level that corresponds to individual pixels in the image.
Vacant lot farms are community-managed farm sites, but are often seen by authorities as temporary rather than permanent. [81] For example, Los Angeles' South Central Farm (1994–2006), one of the largest urban gardens in the United States, was bulldozed with approval from property owner Ralph Horowitz, despite community protest.
A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree , although the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the bottom.
Project Learning Tree (PLT) is an environmental education program for teaching children about trees and forests using hands-on activities. It was created in 1976, after passage of the first National Environmental Education Act in 1970 and celebration of the first Earth Day in 1970, raised the profile of environmental education in the United States.