Posts Tagged: Lenya Quinn-Davidson
U.S President Donald Trump criticized forest management in California and threatened to cut off federal emergency funding this week, eliciting confusion and condemnation, reported Ryan Bort in Rolling Stone.
The International Association of Fire Fighters released a statement calling Trump's move "disgraceful." "While our president is tweeting on the sidelines in DC, our fellow Americans 3,000 miles to the west are mourning loved ones, entire communities have been wiped off the map and thousands of people are still trying to figure out where they are going to call home."
The reporter wrote that the president is fixated on the state's role in causing forest fires, but the federal government owns the majority of forested land in California. Moreover, the devastating Camp and Woolsey fires of 2018 were not forest fires; they were wildland-urban interface fires, according to UC Cooperative Extension wildfire specialist Max Moritz.
"In these environments, as we've seen, it can be the homes themselves that are burning and spreading fire to other nearby homes. Managing vegetation can thus have relatively little effect on fire spread," Moritz said.
The federal government shutdown itself is having a major impact on wildfire prevention, reported Ezra David Romero on Capital Public Radio.
Typically, forest managers analyze their budgets and plan for the next fire season during the winter. But the government shutdown has suspended these efforts because the U.S. Forest Service - which has been furloughed since Dec. 22 - plays a big role.
Crews in Redwood National Park are “just sitting on their hands,” according to UC Cooperative Extension fire advisor Lenya Quinn-Davidson in Humboldt County, because they can't work on federal land during the shutdown. She said that workers were “excited to do more” on the heels of the state's worst fire season in history. “This is just taking the wind out of their sails."
The shutdown is also causing challenges for UCCE forestry specialist Bill Stewart. He's working on collaboration between the UC system and the Forest Service to streamline the cost of preventing wildfires. But the shutdown is making the five-year project, which has end-of-January deadlines, difficult to accomplish.
“Everything has come to a total stop,” Stewart said. “They are not even allowed to answer their emails. If this continues it may be hard to restart for this next season.”
Franz Niederholzer - 2019 New Year's Profile
(Appeal-Democrat), Dec 31
Keeping Up with Navel Infections
(Dairy Herd Management) Emre Gürdal and Noelia Silva del Rio, Dec. 31
How Do Wildfires Start?
(Live Science) Donavyn Coffey, Dec. 28
…In other words, "a source [of heat] hits receptive fuel that's dry enough to burn," said Lenya Quinn-Davidson, a fire analyst for the University of California Cooperative Extension forestry program in Northern California. In the right conditions, those three factors are all it takes to set a wildfire in motion.
…However, ignition is only the beginning. For a spark to grow into a sustained wildfire, there must be a perfect combination of factors, such as "dry conditions and really strong winds," Quinn-Davidson told Live Science. And because of climate change, dry conditions are lasting longer and, in turn, causing longer fire seasons.
Analyzing The Use of Selective Dry Cow Therapy
(Dairy Herd Management) Fernanda C. Ferreira and Emmanuel Okello, Dec 27
Private woodlands lost to California wildfire — and may not be replaced
(SF Chronicle) Peter Fimrite Dec. 25,
…It costs about $400 per acre to reforest land, said Bill Stewart, a forestry specialist at UC Berkeley who has studied forest restoration programs after fires.
“A lot of (small property owners) ... don't have the cash or professionals to do the job,” he said. They “take a big financial hit when their forests are caught in a wildfire.”
…Max Moritz, a wildfire specialist at the University of California Cooperative Extension, said wholesale clearing is not always necessary. The rush to clear the land, he said, can result in healthy trees being cut down.
“Many trees can survive pretty bad crown scorch, so there's generally no urgency to get them out, or there shouldn't be, anyway,” said Moritz, an adjunct professor at UC Santa Barbara. “This is especially true of species that resprout, like several of the oaks and also redwoods.”
Get to know your wasps: University of California entomologist addresses misconceptions
(Press Democrat) Kate Frey, Dec. 21
Rachael Long, a University of California Cooperative Extension entomologist and crop adviser, recently told me a story about three wasps that people frequently encounter around their homes and often have misconceptions about.
Gene Editing Finds its Way to the Farm
(Dairy Herd Management) Clinton Griffiths, Dec. 21
…Alison Van Eenennaam, animal geneticist, University of California-Davis, says edits that create polled herds will soon be common.
“It's kind of like a pair of molecular scissors, if you will, that you can tell to go and cut the DNA at a very precise location in the genome,” Van Eenennaam explains. “What that enables you to do is go in and very precisely alter one particular gene of the thousands of genes that make up the genome, and you can introduce useful genetic variations.”
Farm Bill Set to Bring Several Benefits to California Growers
(AgNet West) Brian German, Dec. 19
...“There's some really good stuff in it for California, I mean first of all, getting a farm bill is fantastic,” said Vice President of UC Agriculture and Natural Resources Glenda Humiston. “Some really good things for beginning farmers and ranchers, and veterans' efforts in ag. One thing that's really potentially exciting for California in the rural development title is increasing the eligibility of communities up to 50,000 for some of the programs.”
Gene-edited farm animals are coming. Will we eat them?
(Washington Post) Carolyn Y. Johnson, Dec. 17
...“Right now. This is exciting, right this minute,” animal geneticist Alison Van Eenennaam said as she waited for a tiny blob of a fetus to materialize on a laptop screen on a recent afternoon at the Beef Barn, part of the University of California at Davis's sprawling agricultural facilities for teaching and research.
Commentary: Is Atascadero prepared?
(Atascadero News) Ray Weymann, Dec. 14
…But often, even 10 feet from a house takes one into a neighbor's property. Whether this means mandating more aggressive tree and brush clearing, and reevaluation of building codes for new and existing structures, is something the new council should consider, availing themselves with input from our local fire department but also from people like Jack Cohen. Another wildfire expert, Max Moritz, suggests that governments must be more aggressive in not allowing development in areas especially vulnerable to wildfire.
Ceres Imaging unveils cumulative stress index
(Successful Farming) Laurie Bedord, Dec. 14
...“Findings over the last four years show that the average Ceres Imaging conductance measurement from its imagery over the season has provided the best correlation with applied water,” says Blake Sanden, a Kern County University of California Cooperative Extension farm adviser. “While there's no perfect predictor of final yield, Ceres Imaging aerial sensing of canopy plant stress has a significant relationship with final yield.”
New Farm Bill Provides Funds For Research In California ‘Ag,' But No Big Boons
(Capital Public Radio) Julia Mitric, Dec. 13
…"What's fascinating about the Farm Bill is, after all that hyper-partisan debate … it's really a lot of the same of what we already had," said Glenda Humiston, vice president of University of California Agriculture and Natural Resources.
Humiston is pleased that California will get an increase of $25 million a year for research of specialty crops, agricultural jargon for fruits, vegetables and nuts, as opposed to commodity crops like soybeans, corn and wheat. Those federal grants will cover many areas, from adapting farming to the effects of climate change to finding cures for California's many invasive pests, Humiston said.
Can California Improve Forest Management And Prevent Wildfires Without Going Broke?
(Capital Public Radio) Ezra Romero, Dec. 13
...But can California expand programs like forest-thinning and controlled burns and manage its forests on the cheap?
UC Berkeley forestry specialist Bill Stewart says yes. “There's certain areas that it is going to cost you $700 an acre, but other acres you can treat for $50 or $100 an acre,” Stewart said.
Technology advances impact production efficiency
(AgriNews) Martha Blum, Dec. 13
“I'm passionate about genetics and sticking up for technology because if we don't stand up for it, we're not going to have access to it,” said Alison Van Eenennaam, Cooperative Extension specialist in the Department of Animal Science at University of California, Davis.
“The livestock industry doesn't have access to GMOs because of the debate around plant GMOs,” Van Eenennaam said during a presentation at the 2018 American Agri-Women Convention.
Lindcove squeezes 100 citrus varieties into one tasting
(Sun Gazette) Dec. 12
The University of California citrus research center swings open its doors this week to give farmers and the public the opportunity to view and taste more than 100 varieties of citrus.
Can Rakes Save Forests? Yes, As Long As You Have A Drip Torch In The Other Hand, UC ANR Says
(Sierra Sun-Times) Susie Kocher, Rob York, and Lenya Quinn-Davidson, Dec. 12
Have shears, will travel
(California Bountiful) Ching Lee
…Sheep owners, particularly those with small flocks, have had trouble finding shearers for years—and the smaller their flock, the harder it is to get someone to shear for them because shearers are paid by the number of animals they shear, said John Harper, a UC livestock and natural resources advisor who has run the annual shearing program for nearly 25 years.
Could legalizing cannabis help the environment?
(Physics World) Kate Ravilious, Dec. 11
Using high resolution satellite imagery for the years 2012 and 2016, Van Butsic from the University of California, Berkeley and his colleagues found a boom in cultivation of cannabis in Mendocino and Humboldt Counties. By zooming right in, the researchers could identify the distinctive shape of the cannabis plants, the regular pattern in which the crop is planted, and the greenhouses perched in unusual places.
...“The chances of environmental damage are much greater in these regions because of the high potential for erosion, which threatens water quality, high potential for using water directly from headwaters, and the need to build roads to access these farms,” says Butsic.
What Does It Take To Defend Your Home Against A Mega Wildfire Like The Camp Fire? Here's How One Couple Survived
(Capital Public Radio) Ezra David Romero, Dec. 11
...Earlier this year, University of California system forest advisor Yana Valachovic toured the Carr Fire burn area in Redding.
“What surprised me there was how many of the stucco homes were lost and they were surrounded by green lawn,” Valachovic recalled. “What the mechanism of entry was is that they had a ring of vegetation right around the outside of their house.”
Susie Kocher, a forest adviser for the Lake Tahoe region with the UC Cooperative Extension, often works with homeowners that live within the Angora Fire burn area. That blaze destroyed about 250 homes in Lake Tahoe in 2008. A decade later, Kocher said people still aren't properly preparing their homes.
“There's still a lot of flammable plants planted right under picture windows,” Kocher said, adding that people have almost set themselves up for failure, “perhaps in the mistaken belief that they are kind of safe now because there's no big trees.”
Wildfire scientists brace for hotter, more flammable future as Paradise lies in ashes
(CNN) Bill Weir, Dec. 10
…"Well, my colleague Katharine Hayhoe says climate change is like gravity," says Dr. Faith Kearns. "Climate change doesn't really care if you believe in it or not. It's reality. We have gravity, we have climate change."
Are Your Bananas at Risk?
(BYU Radio) Top of Mind, Dec. 10
Guest: Norman C. Ellstrand, Distinguished Professor of Genetics, Department of Botany and Plant Sciences, University of California, Riverside
...Here in the US, there's only one kind of banana in the supermarket – sweet, yellow, no seeds, about as long as your hand. It's a variety called Cavendish and it dominates the international banana market. Which turns out to be a big problem.
Jeff Mitchell: Conservation No-Till Is One Option For Water Conservation
(Cal Ag Today) Patrick Cavanaugh, Dec. 10
Jeff Mitchell is a Cropping Systems Specialist at UC Davis, based at the Kearney Agricultural Research and Extension Center in Parlier. He has devoted his 19 years to improving nitrogen and water use efficiencies in food, feed, fuel and fiber in no-till cropping systems.
Solano 4-H schedules Fairfield open house
(Fairfield Daily Republic) Susan Hiland, Dec. 9
The Solano County 4-H Youth Development Program will host a 4-H open house from 5:30 to 8:30 p.m. Wednesday on the first floor of the University of California Cooperative Extension Office, 501 Texas St.
California State Fair Extra Virgin Olive Oil Competition opens Jan. 8
(Lake Co News) Dec. 8
…The California State Fair is proud to announce the head judge for the 2019 competition, Mr. Paul Vossen. Vossen will employ his expertise and experience at the California State Fair olive oil judging to lead the team of 15 Judges and ensure a fair and ethical judging process.
With more than 30 years of experience in the field as a University of California Cooperative Extension Farm Advisor in Sonoma County, Paul Vossen offers practical advice to large commercial ventures and hobby farmers alike for clients around the world.
Getting the Facts Straight on Dairies
(California Dairy) Dec. 7
The inaugural California Dairy Sustainability Summit in Sacramento last month was a big hit. Conference presentations not only focused on what California dairy producers can do to increase their sustainability efforts, but also on how producers can better share their stories and correct some of the common misconceptions that have been circulating the public. Check out this video with Frank Mitloehner, Air Quality Specialist from the Department of Animal Science at UC Davis, who shared the facts, and read more about it in California Dairy Magazine.
Why Californians Were Drawn Toward the Fire Zones
(Wall St Journal) Jeffrey Ball, Dec. 7
…Lax building codes are at the base of the problem. Even in California, which has some of the toughest such rules in the country, they often aren't adequate or adequately enforced. The codes often dictate the use of fire-retardant materials in house construction but typically say nothing about how a development must be situated on the landscape—and that can help determine whether that development will burn in a fire, says Max Moritz, a cooperative-extension wildfire specialist at the University of California, Santa Barbara. “So the developers are able to come in, propose something, and often, without too much oversight, walk away after having built something in a dangerous place,” he says. “And we pick up the tab.”
Cutting down Christmas trees on public land is good for forest management: expert
(KTVU) Lisa Fernandez, Dec. 7
A forestry advisor for the University of California is a big proponent of cutting down Christmas trees on public land as an inexpensive, family-friendly holiday ritual and a way to thin the forests of excessive small trees.
Researchers study how to enrich soil
(Appeal-Democrat) Ruby Larson, Dec. 6
Soil health and research on using cover crops were discussed by farmers, researchers and others at the University of California Cooperative Extension's Soil Health and Cover Crop Field Day on Thursday morning.
Dozens gathered for a presentation on the Healthy Soils Project, which the local UCCE is participating in. The project focuses on managing soil health, changes in soil carbon and reducing greenhouse gases.
…Amber Vinchesi and Sarah Light, agronomy adviser for UCCE Sutter-Yuba, gave a demonstration on how they would test for greenhouse gasses during the course of the project.
Climate Extremes: the New Norm
(Santa Barbara Independent) Laura Capps, Dec. 6
...“We need to change our perspective to one of co-existing with fire instead of fighting it,” said Dr. Max Moritz, a University of California wildfire scientist. “Fire isn't going away anytime soon. We need to locate and build our communities accordingly so that we reduce our vulnerability over the long term to this essential and inevitable natural process that is wildfire.”
Will More Permits To Chop Down Christmas Trees Help Thin California Forests And Prevent Wildfires? (AUDIO)
(Capital Public Radio) Ezra David Romero, Dec 5
In a patch of forest a few miles from Lake Tahoe's shore, Susie Kocher and her family are crunching through the snow to find a Christmas tree.
…"It's a great win-win solution,” said Kocher, who is also a forest advisor for the University of California Cooperative Extension for the Lake Tahoe area. “You get the public out in the forest, you do good work reducing the density of the trees."
Wildland fire research and impacts on nut orchards
(Western Farm Press) Logan Hawkes, Dec 5
..So far, tree nut damages or other agricultural losses in the deadly Camp Fire are unknown according to UCANR Sustainable Orchard Farm Advisor Luke Milliron in Butte County.
Fruit tree owners get free lesson in pruning
(The Californian) John Karlik, Dec 5
Even those with the greenest thumbs may need some guidance when it comes to pruning trees. The University of California Cooperative Extension office is here to help again with its annual fruit tree pruning demonstrations on Dec. 12 and 13.
Starting at noon both days in the orchard of the cooperative's office, ag adviser Mohammad Yaghmour will show attendees how to trim back trees including apple, apricot, cherry and almond as well as grapevines.
Camp Fire Impacted Local Prescribed Fire Training
(My Mother Lode) Tracey Petersen, Dec 5
...The 20 participants were to get hands-on fire experience to better understand the art and science of fire management and ecology. However, organizer and Natural Resources Advisor at the University of California Cooperative Extension – Central Sierra Susan Kocher relays that due to the explosion of the Camp Fire no flames could be ignited for the training because the required back up resources were called to battle the mega blaze. She adds it is an ongoing problem regarding using prescribed burns for fire prevention. “I really think it shows just our exact dilemma. It's hard to get ahead of disasters because you're busy responding to disasters,” advised Kocher. “So, we just need to do everything we can to try and burn at all times of year to try to get ahead of these tragic wildfires that are happening.”
The New Abnormal: A Town Hall on California's Fires and the Future
(Commonwealth Club) Dec. 4, 2018
… To address some of these critical and urgent questions, please join The Commonwealth Club for a special free town hall on California's fires and what can be done in the short and long term to prepare for them.
J. Keith Gilless, Chair, California Board of Forestry and Fire Protection; Professor of Forest Economics, UC Berkeley
Thom Porter, Chief of Strategic Planning, California Department of Forestry and Fire Protection (CAL FIRE)
Kurtis Alexander, Water, Wildfire and Climate Writer, San Francisco Chronicle
Maggi Kelly, Professor and Cooperative Extension Specialist in the Environmental Science, Policy and Management
Valley's Gold: Food Safety
(Valley's Gold) Dec. 4
Learn about the economic engine that drives the region, Agriculture. With host Ryan Jacobsen
UC CalFresh Nutrition Education Specialist Elizabeth Lopez shares food safety tips and tools in this PBS episode starting at the 18:32 mark.
San Diego County wants to build 10,000 new homes in fire-prone areas
(San Diego Union Tribune) Joshua Emerson Smith, Dec. 3
…What these building codes and other rules don't take into account is whether a particular project should be built at all, said Max Moritz, a cooperative extension specialist in wildfire at the Bren School at UC Santa Barbara.
“There's all these hazards that we use to guide our building and our zoning from floods to landslides, and fire is not one of them,” Moritz said.
“In the end, the taxpayer is left holding the bill for all this,” he added. “The developer may do a really good job at designing and convincing everybody that it's the right thing to do, but after they walk away, the public is left doing fuels maintenance for decades, and the public picks up the bill when there's a disaster.”
California is managing its forests — but is the president managing its federal lands?
(NBC News) James Rainey, Dec. 2
...Scott Stephens, a University of California, Berkeley professor of fire science, said the fire cataclysms of the last two years seem to have ended a long era of inattention.
“We will start to change the trajectory,” he said, “so we won't have tragedies like we had in Paradise.”
Subfreezing temperatures predicted for early Monday in Modesto area
(Modesto Bee) Deke Farrow, Dec. 2
...The University of California Cooperative Extension in Sacramento County offers more
The humble rake has been in the spotlight in recent weeks, and its role as a forest management tool ridiculed and scorned. However, most fire professionals believe rakes are a necessary part of saving California's forests.
Those who are familiar with fire are undoubtedly familiar with the McLeod, which is a standard firefighting tool and … it is essentially a rake (one side is a rake with coarse tines and the other side has a flat sharpened hoe). The McLeod was created in 1905 by a U.S. Forest Service ranger who wanted a single tool that could rake fire lines (with the teeth) and cut branches and roots (with the sharpened hoe edge). The McCleod is used to scrape fuels off of a fire line, preventing fire spread. The use of hand tools like the McLeod continues to be one of the standard ways that wildfires are stopped (although often aided by the rake's bigger and more powerful cousin: the bulldozer).
While the McLeod is a fire-fighting tool, it is also an essential fire-managing tool. When conducting controlled burns (i.e., purposeful fire), the fire is contained within desired areas by diligent raking with McLeods and other hand tools. These tools are necessary for conducting controlled burns.
While it isn't feasible to reduce fire risk by raking the forest with hand tools, if you hold a drip torch in the other hand, you could get the work done.
A drip torch consists of a canister for holding fuel that comes out of a spout (with a loop to prevent fire from entering the fuel canister) and a wick from which flaming fuel is dropped to the ground when the wick is ignited. The drip torch is the most common tool for lighting prescribed burns, which can be used to remove excess fuel buildup in the forest.
In a forest setting, these two tools — the rake and the torch — must be used together. Without a rake, the fire is not easily contained. And without a drip torch, the fuel that was raked cannot burn. Of course, prescribed burns rely on a number of other pre-specified factors (the prescription), including wind, temperature and humidity.
Using fire in a controlled manner drastically reduces the impacts of wildfire in a forest. Typically flames are kept low and most or all of the trees survive the fire, while much of the dead material on the forest floor (the “fuel”) is consumed. This reduces the risk of the forest burning at high severity in the future, thereby protecting nearby homes and towns. It also reintroduces fire as an important ecosystem process, which improves the health and biodiversity of forests and maintains the ecosystem services they provide, including wildlife habitat, water filtration and carbon sequestration.
Use of a rake and a drip torch together could make a great difference for reducing the impacts of wildfire in California and the West. The National Interagency Fire Center reported that during 2017, only half a million acres were treated with prescribed fire in the West, while 7.4 million acres (almost 15 times more) burned in wildfires. In the Southeastern U.S., where there is a long-standing tradition of prescribed burning, only 2 million acres burned in wildfires while over 5.5 million were burned using prescribed fire.
This was not always the case. Use of prescribed fire, or ‘light burning,' was once common in California until it was outlawed by federal and state policy in 1924. Although the merits of expanding its use are widely known and appreciated, it has been very difficult to do because of concerns about air quality, liability and lack of skilled burners. One of the biggest constraints is that we have very few people who have experience with ‘good fire' and very few qualified people who know how to safely burn.
As foresters and educators for the University of California Cooperative Extension, we are working to expand the use of prescribed fire on private forest and grasslands in California. Central to our efforts are educational events that give people an opportunity to experience prescribed fire first-hand. In the last two years, we have hosted workshops throughout northern California, and many of our workshops have included a live-fire component where landowners and other community members can try their hand at prescribed burning, under the direction and guidance of more experienced burners.
Our efforts in California are inspired by approaches in other parts of the country, including “Learn and Burn” events in the Southeast, prescribed burn associations in the Great Plains, and prescribed fire training exchanges (TREXs), an innovative training model developed by The Nature Conservancy's Fire Learning Network. All of these efforts have a focus on reconnecting people with fire, and they give participants the skills and experience needed to put fire back in the management toolbox.
We hope that by empowering people to pick up the drip torch (and the rake) on their own properties, we can help them reduce the risk of wildfire and improve the health of their forest and range lands. There is no time to waste.
For millennia, fires periodically burned through California forests, thinning trees, reducing shrubbery and clearing out downed branches and debris. Without periodic fire, the forests became more dense, with spaces between large trees filling in with a thick carpet of duff, seedlings and shrubs.
As a result, today's forests are prone to more intense and damaging fires, like the Rim Fire, King Fire, and — most recently — the Camp Fire in Butte County. These fires are burning with unprecedented severity and speed, threatening large swaths of forest, towns, and even urban areas.
Using fire as part of forest management is not a new concept. Native Americans were known to burn brush to open up hunting grounds and clear shrubbery for gathering. Decades ago, iconic Berkeley forestry professor Harold Biswell said, “Fire in the Sierra Nevada is as important as rain.”
Competing forces, however, pushed foresters and fire officials toward fire prevention and suppression, particularly the cataclysmic fires of the early 20th century that leveled entire towns and left dozens of residents and firefighters dead. The fear of out-of-control blazes and the perceived damage to timber resources launched a war on fire that has lasted a hundred years. Some forest managers are urgently trying to negotiate a truce.
Making peace with fire and turning it into a useful tool, rather than a raging threat, was the objective of an October meeting in Shaver Lake of UC Cooperative Extension forestry and natural resources scientists, Southern California Edison forest managers, CALFIRE officials and U.S. Forest Service representatives.
The event also raised awareness of “pyrosilviculture,” a new forest management term coined by UC fire scientist Rob York to emphasize the importance of fire in silviculture, the management of forests for wood.
Forests have myriad benefits – recreational, environmental and economic. Nature lovers value the whisper of pine trees in the wind and green shade over hiking trails and ski slopes. Owls, bears, deer and other wildlife make their homes among firs, pines, oaks and cedars. Forests stabilize mountain slopes, which store water as snow for agriculture and drinking. People build their homes, businesses and schools out of the planks and boards cut from the straight, soft wood of conifer trees.
The value of California forest products was about $429 million in 2017, according to the USDA. Because fires can damage and destroy trees, the timber industry has historically been reluctant to use fire as a tool. That's changing.
“Fire is such an important ecological process, you can't manage for timber without fire,” York said.
York is the manager of the Blodgett Forest Research Station, UC Berkeley's 4,000-acre mixed conifer and oak forest near Georgetown where researchers study forest management practices for increasing timber yield while taking advantage of fire to enhance forest health and make forest stands more resilient to wildfire.
Controlled burning can be used to treat fuels and reverse these trends, but it has been inhibited by a number of barriers, including landowners' concerns about liability, risk aversion among fire management agencies, narrow burn windows, air quality limitations and other regulatory challenges. Now, public demand for prescribed fires is growing.
“I believe what moved the needle was, for several years in a row, there were high-severity fires in the news,” York said. “Wildfires were in the pubic zeitgeist. People began asking, ‘Why aren't we doing more prescribed fire?'”
Climate change is also intensifying the interest among the public and silviculture professionals. Because California is getting warmer and fire seasons are growing longer, high-severity fires are expected to increase.
“There would logically be a tipping point. Even though we reduce the growth of trees when we use fire, if it can prevent the loss of the forest entirely, it would be meeting the timber objective,” York said.
The vast tree die-off during the 2011-2016 drought was another jarring sign that the Sierra Nevada ecosystem is out of balance.
The U.S. Forest Service, which manages 20 million acres of forest in California, is using prescribed fire to reduce fire risk on federal forestlands, but scientists say it's not nearly enough to reduce the threat of catastrophic wildfire. CAL FIRE is ramping up its controlled burn efforts, but it will take time to address far-reaching areas of overgrown forestlands. The agency sometimes uses mechanical measures such as mastication and chaining before burning to pre-treat fuels and prepare units for burning.
“We need to work around communities first, and then move out to the wider landscape,” said CAL FIRE division chief Jim McDougald. “If a prescribed fire moves into a subdivision and burns houses, we take 100 steps back.”
“Burning is a key element of forestland management and it can be safe if done properly,” Kocher said. “We provide classroom instruction and invite participants to join a live prescribed fire at Blodgett Forest as part of their training so they become familiar with the process.”
At the training sessions, UC Cooperative Extension advisor Lenya Quinn-Davidson said that in some cases, private landowners can conduct burns themselves. In her hometown in Trinity County, many ranchers and landowners conduct small broadcast burns to reduce fuels and improve forage. These burns are typically quite small and usually conducted in the winter.
“This can be a good option for landowners who wish to burn small areas, but we need other options for bigger, more complex burns” Quinn-Davidson said.
In other parts of the country, landowners have formed Prescribed Burn Associations (PBAs) that allow landowners to work with neighbors and other community members on controlled burns, sharing equipment and labor while developing skills. The PBA model provides a low-cost, grassroots option for prescribed burning, and empowers landowners to work together, and with other key experts and partners, to bring fire back to the landscape, says Quinn-Davidson.
“People are desperate to do something about fire, and the PBA model gives them an option to actively engage with each other and with fire as a tool—it's very empowering,” said Quinn-Davidson.
The California Natural Resources Agency released California's Fourth Climate Change Assessment today (Monday, Aug. 27), at http://www.ClimateAssessment.ca.gov. UC Agriculture and Natural Resources scientists contributed substantially to the report.
The Fourth Assessment is broken down into nine technical reports on the following topics:
- Biodiversity and habitat
- Forests and wildlife
- Ocean and coast
- Projects, datasets and tools
- Public health
The technical reports were distilled into nine regional reports and three community reports that support climate action by providing an overview of climate-related risks and adaptation strategies tailored to specific regions and themes.
The regional reports cover:
- North Coast Region
- Sacramento Valley Region
- San Francisco Bay Area Region
- Sierra Nevada Region
- San Joaquin Valley Region
- Central Coast Region
- Los Angeles Region
- Inland South Region
- San Diego Region
The community reports focus on:
- The ocean and coast
- Tribal communities
- Climate justice
All research contributing to the Fourth Assessment was peer-reviewed.
UC Cooperative Extension ecosystem sciences specialist Ted Grantham – who works in the Department of Environmental Science, Policy and Management at UC Berkeley – is the lead author of the 80-page North Coast Region Report. Among the public events surrounding the release of the Fourth Assessment is the California Adaptation Forum, Aug. 27-29 in Sacramento. For more information, see http://www.californiaadaptationforum.org/. Grantham is a speaker at the forum.
Other UC ANR authors of the North Coast Region Report are:
- Lenya Quinn-Davidson, UC Cooperative Extension area fire advisor for Humboldt, Siskiyou, Trinity and Mendocino counties
- Glenn McGourty, UC Cooperative Extension viticulture and plant science advisor in Mendocino and Lake counties
- Jeff Stackhouse, UC Cooperative Extension livestock and natural resources advisor for Humboldt and Del Norte counties
- Yana Valachovic, UC Cooperative Extension forest advisor for Humboldt and Del Norte counties
UC Cooperative Extension fire specialist Max Moritz contributed to sections of the main report on Forest Health and Wildfire and to the San Francisco Bay Area Report.
UC ANR lead authors of technical reports were:
- Economic and Environmental Implications of California Crop and Livestock Adaptations to Climate Change, Daniel Sumner, director of UC ANR's Agricultural Issues Center
- Climate-wise Landscape Connectivity: Why, How and What Next, Adina Merenlander, UC Cooperative Extension specialist
- Visualizing Climate-Related Risks to the Natural Gas System Using Cal-Adapt, Maggi Kelly, UC Cooperative Extension specialist