Standing beneath especially talltreesin aforestand looking up can invoke a feeling of awe. Large trees — especially those that are 21 inches in diameter or more — offer valuable benefits to forests, as well as outsized help with thebiodiversityandclimatecrises. They provide uniquehabitatforwildlife, as well as disproportionate absorption andstorageof atmosphericcarbon dioxide, a major driver ofclimate change.

A newstudyexplores the connection between protecting mature trees in national forests and objectives related to habitat conservation, forest resilience and climate change mitigation.

“These arepublic landsthat are providing a natural climate solution and performing multiple additional services at no cost,” said systems ecologist with Eastern Oregon Legacy LandsDavid Mildrexler, who was the lead author of the study, as Phys.org reported. “We suggest policy to keep existing forest carbon stores out of the… atmosphere and accumulate additional amounts while protecting habitat and biodiversity.”

The study, “Protect large trees for climate mitigation, biodiversity, and forest resilience,” was published in the journalConservation Science and Practice.

先前的研究发现,树木保护的rule that prohibits the logging of trees 21 inches or wider at breast height — known as the “21-inch rule” — only make up three percent of forest stems, but account for 42 percent of aboveground carbon storage, reported Phys.org.

However, the U.S. Forest Service recently relaxed this vital rule, which means these essential, majestic carbon stores can now be felled on millions of national forest lands in Washington and Oregon.

“Forests account for 92% of all terrestrialbiomassglobally, store about 45% of the total organic carbon on land in their biomass andsoils, and removed the equivalent of about 30% offossil fuel emissionsannually from 2009 to 2018, of which 44% was by temperate forests,” the study’s authors wrote, as Phys.org reported.

Some ancient trees can live as long as 5,000 years and accumulate and store a massive amount of carbon in that time.

“There is no action required from us but to leave these large trees standing so they can continue to store and accumulate carbon for climate mitigation and providecritical habitat,” said co-author of the study Beverly E. Law, a professor of global change biology and terrestrial systems science in the Department of Forest Ecosystems and Society at Oregon State University, as reported by Phys.org.

Read the full article about tree and wildlife conservation by Cristen Hemingway Jaynes at EcoWatch.