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The diagrams above and below show (in solid line) major roots traced to their ends and (in dotted line) the trees' crown areas. Graphs show stem (—0—) and root (—x—) growth data in years and feet.
Trouble Aloft. Though contemporaries, and enjoying identical conditions, these two white pines contrast sharply in their crowns. Something must be radically amiss with the right-hand one. A GIRDLING BOOT EXPOSED
A Clue Below, The puny pine's trunk comes straight up out of the ground on one side. Diagnosis: Its buttress roots there are probably constricted. The Trouble Exposed. One errant root has strangled its neighbors and the tree, killing itself in the process. One cut, at the base of the constrictor, will relieve pressure. Water was used to lay bare this girdling. |
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