This week, Forestry Friday is a forestry quiz question. The question is about tree growth. This question appeared on the California Professional Foresters Exam about thirty years ago. Any junior forester or forestry student who missed this question probably failed the test and was definitely teased for it. In California, foresters are required to pass this test in order to become a Registered Professional Forester (RPF). It is illegal to practice forestry in the State without a license. Now to test your forestry knowledge.
You nail a red tag on a Lodgepole pine tree at DBH. DBH stands for Diameter at Breast Height, which is 4 1/2 feet about the ground as measured on the high side of the base or the tree. The tree is growing in height at 2 1/2 feet per year. In 10 years how high will the tag be above the ground?
I look forward to reading your answers Junior Foresters. I will reveal the correct answer next week on the Forestry Friday post.