The new research extends Swetnam's previous tree-ring fire history for giant sequoias another 1,000 years into the ... It confirms that the charcoal is a good indicator of past fires," Swetnam said.

“Fire is always where people are,” Flannigan continues. “It goes with us wherever we go. But the genie is out of the bottle.

Tree-ring data reveals a decline in fire activity in many forests, where the absence of fire can contribute to more severe wildfires in the future.

The results also reveal that much of the continent is in a substantial "fire deficit," experiencing about 20% as much fire as in the past. On average, larger areas of land burned from fires each ...

When trees are exposed to non-lethal fires, their bark chars, leaving behind a burn scar in the tree rings. The team dated the earliest definite fire scar to 1772.

If a tree's rings are ... bouncy and reverberating like a tree. It felt right. Rodeo-Chediski Fire It ... "Trees in a forest being more synchronous in their ring spacing is an indicator of ...

Ring by ring, the tree has captured history. The tree was just an 8-foot (2-meter) sapling when it was planted in 1873, a gift shipped from India to commemorate the 50th anniversary of the first ...

Tree rings in the region can be a natural indicator of snow melt: thinner rings are associated with springs that have a late-staying snow cover, thicker rings with years of early thaw.

The authors identified narrow ring growth in the trees with no indication of fire or insect attack, suggesting that the reduced growth was the result of decreased rainfall in late spring and summer.

A study of tree rings in the Gaspésie’s Sainte-Anne River area reveals that snowpacks have been declining noticeably in the region’s mountains for nearly nine decades. The researchers say the ...