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A forest product is any material derived from forestry for direct consumption or commercial use, such as lumber, paper, or fodder for livestock. Wood, by far the dominant product of forests, is used for many purposes, such as wood fuel (e.g. in form of firewood or charcoal) or the finished structural materials used for the construction of buildings, or as a raw material, in the form of wood ...
Proportion and distribution of global forest area by climatic domain, 2020 [1] A forest is an ecosystem characterized by a dense community of trees. [2] Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function.
Forest ecology – studies the patterns and processes of a forest ecosystem; Forest hydrology – embodies the effects of changes in forest land use on the movement, distribution, and quality of water in the ecosystem; Forest pathology – study of diseases of woody plants, and of the interactions between trees and pathogens, pests, and other ...
The task of defining and mapping these ecoregions was carried out by the Oregon Ecoregion Project, a collaborative effort involving the EPA, the United States Geological Survey (USGS), the United States Forest Service (USFS), and other state and federal agencies. The new classification system they developed may differ from previous frameworks ...
The ecosystem engineering concept has stimulated a new appreciation for the influence that organisms have on the ecosystem and evolutionary process. The term "niche construction" is more often used in reference to the under-appreciated feedback mechanisms of natural selection imparting forces on the abiotic niche.
Forest ecology shares characteristics and methodological approaches with other areas of terrestrial plant ecology, however, the presence of trees makes forest ecosystems and their study unique in numerous ways due to the potential for a wide variety of forest structures created by the uniquely large size and height of trees compared with other ...
The forest resources of the United States remained relatively constant through the 20th century. [9] The Forest Service reported total forestation as 766,000,000 acres (3,100,000 km 2) in 2012. [10] [11] [9] A 2017 study estimated 3 percent loss of forest between 1992 and 2001. [12]
The forest is a natural system that can supply different products and services. Forests supply water, mitigate climate change, provide habitats for wildlife including many pollinators which are essential for sustainable food production, provide timber and fuelwood, serve as a source of non-wood forest products including food and medicine, and contribute to rural livelihoods.