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Posts Tagged: forest management

New videos demonstrate techniques and tools to survey forestland trees

Forestland owners can learn how to survey the trees on their property from four new videos produced by UC Cooperative Extension, setting them on a course for sustainable management of their forestland. The videos are available on the UC ANR YouTube channel (

Learning the tools and techniques used for centuries by professional foresters and research scientists allows private forest owners to collect data that paints a picture of the land and trees' current condition.

“Whether it's managing to reduce wildfire, control invasive species, protect the nature beauty or maximize timber harvest, you need to know what you have so you can select the right actions to achieve your goals,” said Kimberly Ingram, UC Cooperative Extension forest stewardship education academic coordinator.

A compass is one of the tools professional foresters use to establish plots when collecting data about a forest.

While about two-thirds of California's 33 million acres of forests are public lands held by state and federal government agencies, the rest is in private hands. In 2019, with funds from CAL FIRE, UCCE launched a program to reach out to the 87,000 private landowners who manage portions of California's forests.

Before the COVID-19 outbreak, three-day field workshops were offered to groups of forest owners to help them develop a plan to improve and protect their forestlands in an ecologically and economically sustainable manner. Because of the pandemic, alternative approaches are being used, including video training, online workshops and limited outdoor field days in locations where social distancing is feasible.

“We're using the flipped classroom method,” Ingram said. “The learner reads and watches videos beforehand and then, when they come to the online classroom and field day sessions, we're delving into real-world examples.”

Kestrel Grevatt, a member of the Grizzly Corps, an AmeriCorps program developed by UC Berkeley that addresses community needs related to climate change, was enlisted to create videos that demonstrate forest measurement practices.

The videos are for landowners who participate in the workshop series and for other forest owners who wish to begin collecting data on their own.

Susie Kocher, UCCE forestry and natural resources advisor in the Central Sierra Cooperative Extension office, narrates and conducts demonstrations in each of the videos. They cover the following topics:

Tree measurement tools
Learn the basics of forest inventory and what measurements you need to quantitatively represent your forest. It covers the usage of a diameter tape, Spencer logger's tape and Biltmore stick (or CA tree stick).

Using a clinometer to measure tree height
A clinometer is a simple tool which can be used to measure heights. In this video, you will learn how to use a clinometer to accurately measure tree height as part of a forest inventory.

Plot establishment tools
Learn how to use a compass, reel fiberglass tape and cruise vest to establish plots. The video covers how to think about your own inventory system and what you will want to take with you when you head into the woods.

Plot layout and inventory system
Learn what it looks like to collect plot data. This video includes a review of plot layout, the measurements and observations to note, and how sample data can represent your entire forest.

Three more forest stewardship workshops have been scheduled:

Feb. 2 - April 13, tribal-focused stewardship workshop: Online and at the Big Sandy Rancheria. Registration now open.

March 22 - May 27, online and in Humboldt County. Registration now open.

April 21 - June 16, online and in San Bernardino County. Registration opening soon.

Workshop registration is $60. Breakfast and lunches are provided for in-person field days. Register at

For more information on forest management and forest stewardship workshops visit the Forest Research and Outreach website at

Posted on Thursday, January 21, 2021 at 10:52 AM
Focus Area Tags: Natural Resources

Reforestation in a burning climate

Eleven years after the 2007 Moonlight Fire. In the fall and winter, prescribed fire is used to burn piles of dead trees, downed logs and shrubs to reduce fuels in the stand and prepare the site for planting (Photo: R. Torres).

Have you given your favorite tree a hug lately? Perhaps you would rather plant a tree? Well, on March 21, International Forest Day, Californians have a good excuse to do both. 

In the first two decades of this new century, fire is having a transformative effect on California forests. Fires are burning with larger proportions of high severity and these high-severity patches are much larger, in many cases exponentially larger than would have occurred under natural fire regimes. This creates landscapes where all living trees – and potential seed sources for the next forest – have been killed. While fires can also have restorative effects and many species in California are adapted to fire, some species, like ponderosa pine, aren't adapted to these large, high-severity fire patches which alter the natural regeneration dynamics of the dry Sierran mixed conifer forests. 

UCCE forest advisor Ryan Tompkins and Brandon Collins of UC Berkeley select field sites. (Photo: M. Coppoletta)

Across U.S. Forest Service lands in California, an average of 50,000 acres of forestland burned at high severity between the years 2000 and 2015; however, less than 30% of these acres were reforested on an average annual basis during this period. This creates a net cumulative loss of forest cover across public lands in the state. 

To compound the complexity of this problem, there are growing instances of these large high-severity patches, burning again at high severity one to two decades later due to the homogeneity of vegetation and fuel profiles in the early seral stages after a fire. In 2013, the Rim Fire burned over 257,000 acres of largely mixed conifer forest, a notable portion of which had been replanted after the 1987 Stanislaus Complex Fire. Now foresters have to think: "Not only do we have to consider reforestation after a fire, but we must consider how we keep these young trees from burning up again!" 

A common theme many ecologists agree on is that heterogeneous landscapes may be more resilient to fire – essentially breaking up the continuity of fuels and diversifying forest structure helps moderate fire behavior. However, over the past half century in California, we have tended to replant fires with a somewhat dense uniform square grid-spaced pattern of trees, which grow into a homogeneous carpet of new forest. As these trees grow, these dense plantations require maintenance – also referred to as “timber stand improvement” – activities to reduce competing shrub competition and “thin” the trees in order to maintain tree vigor and growth and reduce the fire hazard within the planted stand. Funding for timber stand improvement can wax and wane with the forest products market or federal budget priorities, and, on U.S. Forest Service lands, many of these plantations did not have follow-up treatment.  

Surviving trees in the 2008 Antelope low density, wide-spaced cluster plantation have variable mortality after burning in the 2019 Walker Fire.

Seeing this problem brewing across the state, in 2005, a small sect of curious silviculturists and forest ecologists started asking some poignant question such as “Why do we spend money to plant trees which we will then spend time and money to remove a few years later – why don't we just plant less trees?” and “If heterogeneity is important for resilience, why do we always plant new trees in evenly spaced rows?” To many, this was, and still might be, heresy. But it begs a broader philosophical question that if we have diverse objectives for our forests, is it always appropriate to re-establish them in generally one uniform way? More importantly, given the latest fire trends, how can we promote heterogeneity and resilience to fire when we establish forests through planting?

I was one of these intrigued silviculturists. Linda Smith, culturist on the Plumas National Forest, and I started designing and planting low density, wide-spaced cluster plantations in 2007, after the 2006 Boulder Fire. The fire burned in a recreation area adjacent to a lake and part of our objective was to create a forest that would mimic a more naturally appearing structure, but we also knew this could be congruent with fire management objectives as well. 

Feather River Resource Conservation District planting. (Photo: B. Graevs)

Ten years after the 2007 Moonlight Fire, much of the public lands were dominated by a homogenous fuel profile of flashy grasses, standing dead trees, a jack-strawed arrangement of fallen dead logs, and chest-high shrubs. While some of these stands had been planted, no site preparation or management of competing vegetation had been funded. We knew that any trees in this intermix would have a long haul competing against the shrubs, and in the meantime were exposed to high fuel-hazard each fire season.  

Knowing something had to be done, the Plumas National Forest developed partnership agreements with the Sierra Nevada Conservancy and the Feather River Resource Conservation District to prepare the site, reforest and manage competing vegetation over approximately 3,000 acres. They also developed partnership agreements with Brandon Collins, a research scientist with both the U.S. Forest Service's Pacific Southwest Research Station and UC Berkeley Fire Science Laboratory, and Malcolm North, UC Davis associate professor of forest ecology, to monitor the success of different reforestation techniques at promoting heterogeneity and resilience to fire.

Through this partnership, we set up a replicated study to examine the effects of site preparation, planting, and competing vegetation treatments at promoting tree establishment and heterogeneity in young plantations.

Graduate students from Scott Stephen's Fire Ecology Lab at UC Berkeley measured post-treatment fuels.
First, the sites were selected, set up and pre-treatment fuel conditions were measured thanks largely to the leadership of Danny Foster and other graduate students in Scott Stephen's lab at UC Berkeley. Site preparation for planting occurred in the summer season of 2018 by using an excavator to pull and pile fuel accumulations of dead trees, downed logs and shrubs. These piles were then burned in the fall and winter to reduce fuel accumulations and prepare the site for planting. The following spring of 2019, sites were planted in equal densities, but in different arrangements, and with differing levels of competing vegetation control. Much of this work was facilitated by the hard work of Plumas National Forest silviculture staff members Maurice Huynh and Linda Smith and Feather River Resource Conservation District Manager Brad Graevs and his field crew. It is important to have great partners like these who truly understand the investment and value of monitoring management actions to inform adaptive management. 

This spring will be the one year mark for the planted seedlings! There's still a bit longer to go before we're ready to reintroduce fire to the plantations, but we're on our way to that end goal.

In a sense, wildfire may have beat us out: Some of the wide-spaced cluster plantations that Linda and I planted in 2008 after the 2007 Antelope Fire burned 11 years later in the 2019 Walker Fire. I am pleased to see tree survival and some variable mortality. Looks like there will be some trees that deserve a hug this spring!

Posted on Saturday, March 21, 2020 at 4:10 PM
Focus Area Tags: Natural Resources

Teachers invited to learn about natural resources in the forest

Mike De Lasaux shows FIT participants the tree rings in a core sample.
California teachers are invited to spend a week in a northern California forest this summer and participate in the Forestry Institute for Teachers.

“The goal of the Forestry Institute for Teachers, or FIT, is to provide K-12 teachers with knowledge, skills and tools to teach their students about forest ecology and forest resource management practices and introduce them to environmental education curriculum such as Project Learning Tree, Project WILD and California's Education and the Environment,” said Mike De Lasaux, UC Agriculture and Natural Resources Cooperative Extension advisor for Plumas and Sierra counties and a FIT instructor.

The program, which is in its 23rd year, brings teachers from rural and urban settings together with natural resources experts to gain a deeper understanding of the relationship between forest ecosystems and human use of natural resources. The environment becomes the basis for learning in many subject areas, including environmental science, physical science, social science, biology, forestry and history.

“FIT gave me a lot of physical group activities and ideas for how to get to know a new group of people,” said Renata Martin, who is a substitute teacher for grades 3 through 8 in the San Francisco Bay Area.

Teachers learn how to take tree measurements.
By examining the rings in a tree's cross-section, foresters can tell a lot about events – such as wet or dry periods, insect or disease damage – that have occurred during the tree's lifetime. She has used the tree analogy to teach students that important events shape their own lives.

“Especially because I meet new kids every day, I've been able to use the lesson that we did around the campfire the first night with sharing important points in our lives as if they were tree cookies” or slices of a tree, said Martin.

FIT emphasizes California Department of Education Content Standards including Common Core and Next Generation Science Standards. Since 1993, more than 2,200 teachers have graduated from the program. 

Using what they learn at the workshop, the participants conduct training for their colleagues and develop a forestry education project for their students during the school year.

Martin, who participated in FIT in 2014 in Plumas County, said she has adapted many of the lessons for her students based on their age, development and behavior.

Tom Catchpole leads a Talk About Trees program exercise for teachers to practice applying tree science to activities they can do with their students.
Meeting forest-related professionals including small property owners, archaeologists, large lumber corporations and historians made an impression on environmental educator Carrie Raleigh. “It was interesting to get a variety of perspectives on forestry issues and to have face-to-face conversations with a variety of specialists,” said Rawleigh, who participated in the program in 2010 and teaches in Riverside and San Bernardino counties.

Four 1-week FIT sessions are scheduled at four different locations: Plumas, Tuolumne, Shasta and Humboldt counties.

Two June sessions will be held at the University of California Forestry Camp, close to Quincy in Plumas County, and at Sierra Outdoor School near Sonora in Tuolumne County. The July sessions will be at Camp McCumber just east of Shingletown in Shasta County and at Humboldt State University in Arcata in Humboldt County.

The presenters and staff include public and private forest resource specialists and other natural resource managers, environmental activists and science and environmental education curriculum specialists. Groups are welcome to register as teams. There is an application fee of $25, but training, meals and lodging are free for first-time participants.

The deadline for applications is March 16. For more information and to apply, visit or call the Forest Stewardship Helpline at (800) 783-8733. 

The Forestry Institute for Teachers (FIT) workshop was developed by the Northern California Society of American Foresters, University of California Agriculture and Natural Resources Cooperative Extension, Shasta County Office of Education, The California Department of Forestry and Fire Protection, and Project Learning Tree. The FIT Program is underwritten by a consortium of public and private sources.

An initiative to maintain and enhance sustainable natural ecosystems is part of UC Agriculture and Natural Resources Strategic Vision 2025.

Taming Sierra flames

A UC team tamps down fire danger and finds common ground

“All parties deeply care about the fate of these landscapes, and it was this care that sustained SNAMP for the long haul.” John Battles with a clearing axe.
The summer of 2002 was a bad fire season in the United States. Twice as many acres burned than in 2001, and more total acres were destroyed than in all but one of the previous 40 years. The McNally Fire in Sequoia National Forest was only the second largest fire in California that year, and it alone cost more than $50 million to extinguish. It was against this smoky backdrop that George W. Bush launched the Healthy Forests Initiative, a wide-ranging plan to reduce the severity of western wildfires.

In California, the plan coalesced around the concept of strategically placed landscape treatments, colorfully shortened to SPLATs. Mark Finney, a researcher at the Missoula Fire Lab in Montana, proposed that instead of thinning entire old growth forests, land managers could “treat” a fraction of the land with tree thinning and prescribed burns. These treated plots would slow a fire's rate of spread, acting like speed bumps along a road.

It was an interesting but untested idea, and by 2004 the plan ran into bureaucratic roadblocks. Because, while the federal government owns the national forests, the old-growth dwelling wildlife — fishers, goshawks, spotted owls — can fall under state or federal management, depending on the species. Closer to the action, the local communities of Foresthill and Oakhurst were concerned about large-diameter trees being cut as part of the thinning effort, and about the effect of prescribed burning on issues like home safety, wildlife and water quality.

It was beginning to look like then-Governor Arnold Schwarzenegger, a Republican and a self-professed environmentalist, was going to sue the Bush administration over its forest policy mandates — an expensive, bitter process that nobody relished. Instead, a novel approach was conceived: The U.S. Forest Service agreed to test the unproven SPLAT approach along with state agencies, like Fish and Game, Department of Water Resources, and Cal Fire, as long as a neutral third party could be tasked with analyzing the results. And that third party would be the University of California.

And thus, the Sierra Nevada Adaptive Management Project was born, with another endearing acronym, SNAMP. Today, as SNAMP reaches the end of a 10-year run, the project has proven to be a multidisciplinary, multiagency, multimedia success that has the potential to transform not only how we view forest fires, but more intriguingly, how scientists, government agencies, and public stakeholders interact in the pursuit of common goals.

“Anyone can talk about ‘resilient forests,’ but if you go to the Rim Fire you can . . . show someone that this is how a high-severity fire sterilizes the soil.” Kim Rodrigues with her “triangle of success”—balancing relationships, process, and results to reach shared goals.
“Honestly, nobody wanted to do this,” recalls John Battles, a UC Berkeley professor of forest ecology and the chair of the Ecosystem Science Division in in Berkeley's Department of Environmental Science, Policy, and Management (ESPM). “It seemed like it was going to be a quagmire of wasted time.”
Take the always contentious issues of fire, water and wildlife, then add in an alphabet soup of local, state, and federal agencies, and it's easy to see why most academics would keep their heads down and hope not to be called upon. But the governor was looking to the UC system to step up, and Battles, as head of Berkeley's Center for Forestry, felt that he could not refuse. “That's what we do,” he says. “That's the stuff that we should do.”

Gradually, a plan took shape. With the ultimate goal of moderating fire behavior, the U.S. Forest Service would conduct prescribed burning and tree thinning as they saw fit. It would then be up to UC scientists to study the results — not just in terms of fire, but also the impact on wildlife, water and forest health.

Working with stakeholders

Modern adaptive management takes into account complex factors — climate change, human impact, a century of fire suppression, marijuana farms on federal lands — requiring forest managers to continually adapt their strategies to new information, new methods, and new facts on the ground. Even so, a traditional study of various fire treatments would have been fairly straightforward: Do a range of experiments, analyze the results, publish some papers.

But SNAMP's goals went far beyond simply figuring out the best way to slow a wildfire's spread. The experiment proceeded along parallel tracks, studying fire, forest health, fishers, owls, water quality issues and spatial data. And crucially, public participation wasn't an afterthought or an also-ran, but the key piece of the puzzle. According to Kim Rodrigues, a UC Cooperative Extension regional director at the time, “The overall goals of public participation are efforts to reduce conflicts around resource management on the ground.” Rodrigues focused on figuring out how to make public participation more meaningful and relevant.

“You have to keep listening to your participants. These kinds of networks . . . can be fragile, but they can also be really strong if nurtured correctly.” -Maggi Kelly with her Trimble GeoXT GPS receiver, which collects data about her location in the forest.
While the Endangered Species Act and the National Environmental Policy Act both require public comment periods, actual community participation is often disappointingly low. “You really can't just pay lip service to interaction when you have contentious issues,” says Maggi Kelly, UC Cooperative Extension specialist in the Department of Environmental Science, Policy and Management at UC Berkeley. She is a principal investigator of SNAMP's Public Participation Team as well as its Spatial Team. “You have to dive in and do it in a committed way. You have to keep listening to your participants. These kinds of networks and coalitions can be really fragile, but they can also be really strong if nurtured correctly.”

How to best engage the public was an open question. The team eventually settled on a simple strategy: try everything. Kelly and others created a comprehensive, interactive website stuffed with videos, summaries of scientific findings, and a huge trove of documents available for scientists, agency employees, and any member of the general public who took an interest. Perhaps the best feature was the discussion section, where people submitted questions about topics as varied as fuel break maintenance, government intrusion onto private lands, and the affects of the Native American practice of gathering pine roots. The questions received thorough responses from the team members, a level of public engagement that's truly unusual for scientists who are more accustomed to responding only to peer reviewers.

The website was moderately successful. “But our stakeholders really prefer face to face,” says Kelly, so her team ramped up its in-person efforts. Extension agents who lived in the affected communities of Oakdale and Auburn made themselves available for public questions and concerns at board of supervisors meetings, PTA gatherings, and fire-safe councils. Beyond the standard bad-coffee talkathons, the scientists also held field trips to show these theoretical issues in action.

“Anyone can talk about ‘resilient forests,'” Rodrigues says, “but if you go to the Rim Fire [the massive 2013 Yosemite blaze] you can operationalize these terms. You can show someone that this is how a high-severity fire sterilizes the soil.” And the learning went both ways, according to Lynn Huntsinger, professor in the Department of ESPM at Berkeley, who was recruited by Battles for her experience working with landowners. “I've seen management programs in the past where scientists don't come to meetings and face stakeholders,” she says. “But in this case, the stakeholders ended up influencing the kinds of research questions that the scientists asked.”

Adapted from an article Breakthroughs Magazine. Read the complete story in here.

Tintype photography by Michael Shindler


Posted on Wednesday, June 4, 2014 at 8:58 AM
  • Author: Zac Unger

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