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The height of the tree above a level baseline can be determined by measuring the angle to the top of the tree from two different positions, one farther than the other along the same baseline and horizontal plane, if the distance between these two measuring points is known. Extended baseline tree height measurement
Tree height is the vertical distance between the base of the tree and the highest sprig at the top of the tree. The base of the tree is measured for both height and girth as being the elevation at which the pith of the tree intersects the ground surface beneath, or "where the acorn sprouted."
These trees seldom grow above 3 m (9.8 ft) in height and they get smaller as one gains altitude, so that by 180 m (600 ft) they are waist-high. These islands have only between 600 and 800 hours of sun annually. Campbell Island (52°S) further south is treeless, except for one stunted Spruce, probably planted in 1907. [46]
In some cases a girth taken just above the odd growth will be more representative of the actual girth of the tree. In these cases the measurement should be taken there and the height above the base of the tree noted. [citation needed] Some trees have branches at or lower than a height of 4.5 feet (1.37 m).
[41] [42] Breast height is defined differently in different situations, with most forestry measurements taking girth at 1.3 m above ground, [42] while those who measure ornamental trees usually measure at 1.5 m above ground; [41] in most cases this makes little difference to the measured
There are many historical and contemporary claims of superlative height for species beyond those listed in the table above. For example, several articles published in 1878 describe an Eucalyptus amygdalina exceeding 380 feet (120 m) and others nearing 420 feet (130 m) up to 500 feet (150 m), including the Nooksack Giant which was measured using ...
Investors are focused on the potential extension of the stock market's bull rally heading into 2025. Wall Street experts highlighted the most important stock market charts to watch into next year.
Site index – a species specific measure of site productivity and management options, reported as the height of dominant and co-dominant trees in a stand at a base age such as 25, 50 and 100 years; Tree taper – the degree to which a tree's stem or bole decreases in diameter as a function of height above ground. So it can be sharp or gradual.