Accurate data collection technique, but a little detrimental to the health of the Tree.
Now a nice dendro Core sampling....Just a slight scratch.
Works on Humans too...a Tree told me.
Reminds me of an old story.
Mr. Jones had an old tree in his backyard and wanted to know how old it was. So he hired 3 tree experts to render an opinion
The first one told him, “I’d estimate that tree is over 300 years old.”
The second one reported, “MY estimate is that tree is over 500 years old.”
The third one said, “No, the tree is exactly 297 years old.”
Amazed at this answer, Mr. Jones asked, “How did you come up with such a precise number?”
“Easy. I cut down the tree and counted the rings.”