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Tree inventories focus on the attributes of individual trees, as compared to a forest inventory which seek to assess timber attributes on forest stands. Information such as how many street trees there are, what their species is, and their condition is gathered. A community forest cannot be effectively managed unless its condition is known.
Understory is made up of bushes, shrubs, and young trees that are adapted to living in the shade of the canopy. Canopy is formed by the mass of intertwined branches, twigs, and leaves of mature trees. The crowns of the dominant trees receive most of the sunlight. This is the most productive part of the trees, where maximum food is produced.
[1] [2] When taking forest inventory the following are important things to measure and note: species, diameter at breast height (DBH), height, site quality, age, and defects. From the data collected one can calculate the number of trees per acre, the basal area, the volume of trees in an area, and the value of the timber. Inventories can be ...
Trees are important components of the natural landscape and significant elements in landscaping. Compared with most other forms of plants, trees are long-lived. A few species of trees grow to over 100 m (300 ft) tall and some live for several millennia.
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.
Urban forestry can be an important tool for stormwater management as trees intercept rainwater in the canopy, and can slow down, filter and pump water back into the atmosphere via their roots. [ 7 ] [ 8 ] Other benefits include noise control, traffic control, and glare and reflection control.
Forestry is an important economic segment in various industrial countries, [7] as forests provide more than 86 million green jobs and support the livelihoods of many more people. [6] For example, in Germany, forests cover nearly a third of the land area, [ 8 ] wood is the most important renewable resource , and forestry supports more than a ...