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Crown closure and crown cover are two slightly different measures of the forest canopy and that determine the amount of light able to penetrate to the forest floor. Crown closure, also known as canopy closure, is an integrated measure of the canopy "over a segment of the sky hemisphere above one point on the ground".
A forest stand is commonly described as in 10ths or 10%s. Thus a ratio could be given of: 3 Ponderosa pines, 2 mangrove trees, 5 silver spruces. If there was a mixed stand that stand mix could be described as mixed up to 10%, mixed 10–40% and a mixed stand over that amount. [citation needed] The form of mixing of the tree types is commonly ...
When stocking, a tree's basal area is measured. The basal area is a cross-sectional area of the stump taken about 4.5 feet (1.4 m) above the ground. [7] The equation for calculating the basal area of trees in a stand is Basal Area = 0.005454 DBH 2, where DBH is the diameter of the tree at the aforementioned measuring height. [7]
In forestry, a tree crown measurement is one of the tree measurements taken at the crown of a tree, which consists of the mass of foliage and branches growing outward from the trunk of the tree. The average crown spread is the average horizontal width of the crown, taken from dripline to dripline as one moves around the crown.
The root system, crown length, crown diameter, and crown area all increase after thinning. [1] Even if soil evaporation and individual tree transpiration increases after thinning, total evapo-transpiration at stand level tends to decrease; [ 2 ] canopy water interception is reduced and throughfall increased, so that tree-water status usually ...
May 6—A North Idaho lumber mill will close this summer as timber companies face strains from tight operating margins. Despite still earning a profit at the mill, Stimson Lumber Company will ...
Hundreds of landowners in Florida are left with too much timber with nowhere to go, thanks to 'perfect storm' of a hurricane and mill closure. Florida's timber industry is in trouble. After ...
Silvicultural thinning is a powerful tool that can be used to influence stand development, stand stability, and the characteristics of the harvestable products. Tending and thinning regimes and wind and snow damage are intimately related when considering intensive conifer plantations designed for maximum production.