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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 done for other reasons than just calculating the value. A forest can be cruised to visually assess timber and determine potential fire hazards and the risk of fire. [3]
Stumpage value method. A simplified net present value method where the value of the stock is obtained by multiplying the current volume of standing timber by its stumpage price, assuming the rate of discount is equal to the natural growth rate. S = A * p * Q. Value of standing timber = Area * price per m 3 * Quantity of timber. Consumption ...
A Eucalyptus being felled using springboards, c. 1884–1917, Australia McGiffert Log Loader in East Texas, US, c. 1907 Lumber under snow in Montgomery, Colorado, 1880s Logging is the process of cutting, processing, and moving trees to a location for transport .
Mature trees are harvested from, both, plantations and native forests. Trees harvested at a younger age produce smaller logs, and these can be turned into lower-value products. Factors such as location, climate conditions, species, growth rate, and silviculture can affect the size of a mature tree. [7]
Although initially regarded as a joinery wood, mahogany rapidly became the timber of choice for makers of high quality furniture in both the British Isles and the 13 colonies of North America. Mahogany tree at Kannavam Forest, Kerala, India. Until the 1760s over 90 per cent of the mahogany imported into Britain came from Jamaica. [35]
The forest is a natural system that can supply different products and services. Forests supply water, mitigate climate change, provide habitats for wildlife including many pollinators which are essential for sustainable food production, provide timber and fuelwood, serve as a source of non-wood forest products including food and medicine, and contribute to rural livelihoods.
Lignum vitae is hard and durable, and is also the densest wood traded (average dried density: ~79 lb/ft 3 or ~1,260 kg/m 3); [4] it will easily sink in water. On the Janka scale of hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4,390 lbf (compared with Olneya at 3,260 lbf, [5] African blackwood at 2,940 lbf, hickory at 1,820 ...
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]