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A high forest is a type of forest originated from seed or from planted seedlings. In contrast to a low forest [1] (also known as a coppice forest), a high forest usually consists of large, tall mature trees with a closed canopy. [2] High forests can occur naturally or they can be created and maintained by human management.
In the United States, the forest cover by state and territory is estimated from tree-attributes using the basic statistics reported by the Forest Inventory and Analysis (FIA) program of the Forest Service. [2] Tree volumes and weights are not directly measured in the field, but computed from other variables that can be measured. [3] [4]
Guiana Amazonian Park in French Guiana Forest covered area. This is a list of countries and territories of the world according to the total area covered by forests, based on data published by the Food and Agriculture Organization of the United Nations (FAO).
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.
Stocking can be shown as a ratio of the current stand density to the stand density of a maximally-occupied site. [2] Stocking measures account for three things: the cover type and species mixture in the stand, the basal area per acre, and the number of trees per acre. [3] Stocking allows for comparing stands that may have diverse ecology. [4]
Plant density is defined as the number of plants present per unit area of ground. In nature, plant densities can be especially high when seeds present in a seed bank germinate after winter, or in a forest understory after a tree fall opens a gap in the canopy.
Basal area is the cross-sectional area of trees at breast height (1.3m or 4.5 ft above ground). It is a common way to describe stand density. In forest management, basal area usually refers to merchantable timber and is given on a per hectare or per acre basis.
In the early development of forest stand, density of trees remain high and there is competition among trees for nutrients. When natural regeneration or artificial seeding has resulted in dense, overstocked young stands, natural thinning will in most cases eventually reduce stocking to more silviculturally desirable levels. But by the time some ...