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tree rings

Tree Rings Tell the History of Fire and Forest Health

April 12, 2019 Diane Banegas, Research and Development, USDA Forest Service

Why are Rocky Mountain Research Station scientists sampling tree rings in the Pinaleño Mountains of southeast Arizona? Because tree ring samples reveal the history of fire. When fire scorches a tree, the tree floods its wound with sap, which protects the wound from wood rot decay for hundreds of...

Forestry
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