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A Timberjack wheeled harvester stacking cut timber in Finland. Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests and woodlands for associated resources for human and environmental benefits. [1]
Angiospermae; Scientific name Common name Family FIA Code (US) Conservation status Hardwoods; Aceraceae: maple family; Acer: maples; Acer amplum: broad maple Aceraceae (maple family)
Other definitions consider savannas to be a type of forest, and include all areas with tree canopies over 10%. [20] Some areas covered with trees are legally defined as agricultural areas, for example Norway spruce plantations, under Austrian forest law, when the trees are being grown as Christmas trees and are below a certain height.
Trees are also typically defined by height, [4] with smaller plants from 0.5 to 10 m (1.6 to 32.8 ft) being called shrubs, [5] so the minimum height of a tree is only loosely defined. [4] Large herbaceous plants such as papaya and bananas are trees in this broad sense. [2] [6]
About 10 Monocotyledon families include trees. [1] [2] Asparagaceae (Asparagus family) Cordyline, Cabbage tree etc. Dracaena, Dragon tree; Yucca, Joshua tree etc. Arecaceae (Palmae) (Palm family) Areca, Areca; Cocos nucifera, Coconut; Phoenix, Date Palm etc. Trachycarpus, Chusan Palm etc. Poaceae (grass family) Bamboos, Poaceae subfamily ...
Borers rarely bore tunnels in living trees, although when populations are high, adult beetles feed on tender twig bark, and may damage young living trees. One of the most common and widely distributed borer species in North America is the whitespotted sawyer (Monochamus scutellatus). Adults are found in summer on newly fallen or recently felled ...
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]
The natural cover of India varies with altitude; these evergreen forests are bounded with high alpine meadows nearer to the snowline and temperate forests of short stout trees at lower elevations. In the Himalayan foothills are deciduous trees, with shrubs, bamboo, ferns and grass.The trees here are tall with harwood and broad leaves. The trees ...