{"id":30977,"date":"2023-10-26T13:30:00","date_gmt":"2023-10-26T13:30:00","guid":{"rendered":"https:\/\/dh.durangoherald.com\/tj\/colorados-latest-tool-to-fight-forest-fires-mushrooms\/"},"modified":"2026-03-31T07:31:35","modified_gmt":"2026-03-31T07:31:35","slug":"colorados-latest-tool-to-fight-forest-fires-mushrooms","status":"publish","type":"post","link":"https:\/\/dh.durangoherald.com\/tj\/colorados-latest-tool-to-fight-forest-fires-mushrooms\/","title":{"rendered":"Colorado\u2019s latest tool to fight forest fires: Mushrooms"},"content":{"rendered":"\n

\"Zach
Zach Hedstrom, founder of Boulder Mushroom, holds a mass of wood chips Friday, Oct. 13, 2023, in northwest Boulder. The mass shows mycelial cohesion and matting, a stage at which the chips are unified with higher moisture retention, before the layer\u2019s formation and transformation into topsoil. Wood rotting fungi and other mycelium can have strong enzymatic capacities that easily break down biomass from Colorado\u2019s forests and burn sites. (Olivia Sun, The Colorado Sun via Report for America)<\/span><\/figcaption><\/figure>\n<\/p>

GOLD HILL \u2014 Zach Hedstrom kneels on the forest floor, scraping at the 2-inch-deep duff of lodgepole pine needles and pine cones disassembled by squirrels, looking to see whether ghostly fibers of mycelium are quietly consuming the hillside.<\/p>\n

This would be a good thing.<\/p>\n

A mushroom-based takeover of a sunny plot previously thinned for wildfire mitigation is actually the goal, not a horror movie nightmare. The fingers of mycelium can claw their way through wood chips, sawdust and broken branches, and quickly break down wood into a damp, fecund strata that promotes plant regeneration at the same time it blocks wildfire.<\/p>\n

What Hedstrom uncovers for an assembly of two dozen Boulder County forestry experts is an inspiring layer of devil\u2019s food cake crumbs shot through with white mycelium strands. Compared to a dusty gray, hard-packed sheet of sand a few feet away that was never treated with fungus, the dark soil is a veritable rainforest.<\/p>\n

\u201cYou can feel this and it\u2019s actually spongy to the touch,\u201d Hedstrom says, as the murmuring crowd nods and reaches reverently for soil that is apparently on a miraculous journey back to health.<\/p>\n

Now the fungi proving grounds need to get much bigger. Hedstrom\u2019s Boulder Mushroom, a host of Boulder County agencies and nonprofits, and foresters in other major Colorado watersheds have science-backed theories that enriching depleted forest soils with fungus can improve public lands throughout the West. The federal government wants to thin trees and reduce fire danger on 50 million acres in the next 10 years, leaving behind overwhelming piles of tree limbs and wood chips that can last decades in arid climates.<\/p>\n

The people of the mushroom want to hand nature back some of its teeth, by broadcasting a carefully selected mix of mycelium across forest floors and open spaces in pursuit of a healthier ecosystem.<\/p>\n

\u201cWe are looking for other tools in our toolbox,\u201d Hedstrom said. His metaphor is echoed precisely in the course of a sunny afternoon in the hills above Boulder, by agencies that are partnering with him to pursue fungi dreams.<\/p>\n

\u201cIt\u2019s amazing to see the momentum,\u201d said Maya MacHamer, co-founder and director of the nonprofit Boulder Watershed Collective, which promotes forest and wildlife health in the Boulder Creek drainage. MacHamer encouraged the group assembled in the parking lot of Sacred Mountain Ashram to walk with Hedstrom into the surrounding forest and \u201cwitness something that\u2019s growing bigger and bigger. And the innovation that the community is welcoming in on many different levels, that is really what\u2019s catalyzing a lot of this work to move forward more rapidly.\u201d<\/p>\n

But is the coalition doing it right?<\/strong><\/p>\n

Boulder County\u2019s taxpayer-funded climate innovation fund has staked Boulder Mushroom, the watershed collective, and Grama Grass & Livestock with a $100,000 grant to expand research on mushroom treatment of forest floors. Hedstrom doesn\u2019t claim he can do it alone, but some forestry experts believe the dream of mushrooms chewing up and neutralizing mountains of fire fuel is worth seeding similar startups with public grants.<\/p>\n

Hedstrom\u2019s Boulder Mushroom \u2014 \u201cColorado\u2019s premium center for fungi!\u201d \u2014 infuses wood chips with enzymes from mycelium, the root-like threads spreading underground from the classic mushroom cap. While untreated chipped wood can take years to break down under dry Western skies, chips mixed up with fungi break down into productive soil relatively quickly. At the Gold Hill demonstration, Hedstrom showed piles of decaying wood and budding soil that had a good start 16 to 20 months after treatment.<\/p>\n

The process comes with bonus results, like sequestering carbon as vegetation springs up from the spongy mix.<\/p>\n

There\u2019s plenty of territory for Hedstrom\u2019s dream to take root. The U.S. Forest Service is deep into a nearly $5 billion, 10-year program to reduce wildfire danger and improve habitat health on 50 million acres of vulnerable federal and local lands. Colorado\u2019s Front Range is home to dozens of square miles of the thinning plan, which is leaving behind seemingly endless piles of shorn trunks and branches.<\/p>\n

Burning the slash piles is only safe in calm weather, preferably when new-fallen snow dampens the surrounding brush. Local partners like Jefferson County have tried chipping all the trunks and branches and spreading the sawdust on site. But as anyone knows who has a Colorado garden spread with mulch, the chips blithely endure.<\/p>\n

Mushroom-aided breakdown works, as Hedstrom and other researchers, like the Coalition for the Upper South Platte, have demonstrated in artificial windrows of piled up wood chips and on small test plots in thinned forests. The problem now is to get the idea to, well, mushroom, to a scale that could have regional impact.<\/p>\n

Once Hedstrom\u2019s crews have grown enough mycelium for a broad treatment, they scatter the spores in clumps of decaying wood and soil by hand. Hedstrom\u2019s more recent addition has been to mix mycelium with water, and spray a decay-inducing liquid out over the same area. The dual treatments should accelerate decay rates, he said.<\/p>\n

This is where the goodwill among wildfire-fighting mushroom advocates begins to take on a danker musk.<\/p>\n

The Coalition for the Upper South Platte has high hopes for mushrooms, but one of its leaders says the Boulder Mushroom faction is overselling its results, using dubious methods through the water-casting of mycelium and threatening everyone\u2019s funding with unserious science.<\/p>\n

\u201cThey don\u2019t train their mushrooms,\u201d said Jeff Ravage, a forester and mycologist \u2014 fungi expert \u2014 with the coalition. The South Platte region has plenty of past and future fire problems of its own, from a heating climate that has stunted some forest regeneration to seemingly endless debris from mitigation thinning and disasters like the 2002 Hayman fire.<\/p>\n

A truly scientific mycology approach \u201ctrains\u201d mycelium starting in petri dishes, Ravage said, refining strains by feeding them what is in effect \u201c90% candy bar and 10% wood chips.\u201d The portion of wood chips from the target debris is gradually increased into the fungi strains are a lean, mean rot-ready machine. Cue \u201cRocky\u201d and the \u201cGoing to Fly Now\u201d montage.<\/p>\n

Without that kind of scientific rigor, Ravage said, there\u2019s no way to tell if Boulder Mushroom is doing more than the \u201cplacebo effect\u201d you would get from spraying water on a forest floor and watching normally paced wood degradation happen on its own.<\/p>\n

Ravage said he hates to criticize those like Hedstrom who want the best for Colorado watersheds. \u201cI\u2019d like to see it work,\u201d he said, \u201cbut we keep reaching out to him and he keeps not reaching back. You know?\u201d<\/p>\n

\u201cWhat we\u2019re trying to do is guarantee success by being rigorous about it,\u201d he said. To Ravage, it\u2019s not at all clear yet that mushroom-enhanced decay can jump easily from the windrows the South Platte advocates and Pike National Forest create, with sawdust 4- or 5-feet deep, to a thin layer exposed to air on a broad forest floor or open meadow.<\/p>\n

Hedstrom knows Ravage is a vocal critic, and Hedstrom does not appear to be ruminating while he is germinating.<\/p>\n

\u201cWe\u2019ve also conducted our own studies using our own methods, and a lot of them are, in fact, quite similar\u201d to the South Platte group\u2019s, with similar results, Hedstrom said. \u201cFrom what I can interpret here, we\u2019re really trying to address the scalability aspect of this work.\u201d<\/p>\n

Ravage\u2019s team has done pilot work on small plots, a few square meters at a time, Hedstrom said, where \u201cwe want to be able to bring this into an operational capacity, which is why we\u2019re looking at solutions to be able to treat multiple acres.\u201d<\/p>\n

For Hedstrom, the promise of the premise is always right there, in the lacy white fibers of feeding mycelium tangled up in decaying soil.<\/p>\n

\u201cAt Gold Hill,\u201d Hedstrom said, \u201cwe dug down into those chips. And you could visibly see them.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

Infusing slash and wood chips on vast forest floors with mycelium could dampen fuel and improve soil quality, enthusiastic researchers say.<\/p>\n","protected":false},"author":1,"featured_media":30978,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[120,28,84],"naviga_topic":[],"class_list":["post-30977","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-colorado","tag-headlines","tag-wildfire"],"acf":[],"author_name":"dh_admin","_links":{"self":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts\/30977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/comments?post=30977"}],"version-history":[{"count":1,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts\/30977\/revisions"}],"predecessor-version":[{"id":81271,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts\/30977\/revisions\/81271"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/media\/30978"}],"wp:attachment":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/media?parent=30977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/categories?post=30977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/tags?post=30977"},{"taxonomy":"naviga_topic","embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/naviga_topic?post=30977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}