One advantage to having a truck for an office, is to take a few minutes in the woods during lunch to engage in a bit of en plein air sketching. En plein air is a french term meaning “in the open air.” It refers to painting or sketching in the outdoors.
En plein air pen and ink of a lodgepole pine cone.
Here is some of our local lodgepole pine.
In California, lodgepole pine is a tree of high elevation.
They prefer growing near wet areas and around meadows.
This Oregon Junco summers in a high elevation lodgepole pine forest.
Lodgepole pine grows around this meadow with Magee Peak in the background. The very tall trees are Ponderosa pine and white fir.
It often grows in pure dense stands.
These are the male cones of the pine.
In some parts of its range, lodgepole pine produces serotinus cones. These cones stay closed until a fire triggers them to open. The seeds are released to begin the next generation.
Lodgepole pine cones are small, less than two inches in diameter.
A lodgepole pine reaches for the sunshine, as we all should.
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.
Blitz answers “who cares! How high to the first stick is the real question.”