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The most important basic example of a datatype that can be defined by mutual recursion is a tree, which can be defined mutually recursively in terms of a forest (a list of trees). Symbolically: f: [t[1], ..., t[k]] t: v f A forest f consists of a list of trees, while a tree t consists of a pair of a value v and a forest f (its children). This ...
While grown forests continue to store carbon dioxide, young forests store up ten times more. [ citation needed ] Canopy research is a relatively new scientific field which was hampered for a long time by lack of means of access to the tree canopies and lack of appropriate means of housing researchers.
In biology, the canopy is the aboveground portion of a plant cropping or crop, formed by the collection of individual plant crowns. [1] [2] [3] In forest ecology, the canopy is the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms (epiphytes, lianas, arboreal animals, etc.). [4]
Canopy interception is the rainfall that is intercepted by the canopy of a tree and successively evaporates from the leaves. Precipitation that is not intercepted will fall as throughfall or stemflow on the forest floor. Many methods exist to measure canopy interception.
A felled tree allows direct sunlight to reach the forest floor. The creation of a treefall gap causes a break in the canopy to form, allowing light to penetrate through to the understory. This light can now reach shrubs and treelet species, which under normal circumstances never grow tall enough to reach the canopy. [7]
The average tree canopy is rated at 55% of land. This average puts Tallahassee close to number one in the nation for urban forest coverage. One problem with our forest is the lack of diversity in ...
Gap dynamics refers to the pattern of plant growth that occurs following the creation of a forest gap, a local area of natural disturbance that results in an opening in the canopy of a forest. Gap dynamics are a typical characteristic of both temperate and tropical forests and have a wide variety of causes and effects on forest life.
A hemispherical photograph of forest canopy. The ratio of the area of canopy to sky is used to approximate LAI. Indirect methods of estimating LAI in situ can be divided roughly into at least three categories: indirect contact LAI measurements such as plumb lines and inclined point quadrats [citation needed] indirect non-contact measurements