- (Public Value) UCANR: Building climate-resilient communities and ecosystems
- Author: Pamela S Kan-Rice
A free webinar series titled “Trees to the Rescue: Solutions for Climate Change” will be held on May 14-16, from 4 p.m. to 5:30 p.m. each day. The webinars are sponsored by the University of California Thelma Hansen Fund.
“The webinars aim to increase our understanding of the role of trees in mitigating and adapting to climate change, how to plant the right trees and keep them healthy in urban environments, and the challenges of increasing the number of trees at the local level,” said Annemiek Schilder, director of Hansen Agricultural Research and Extension Center, who is organizing the series. Hansen REC is operated by UC Agriculture and Natural Resources.
Participants will discuss some of the challenges and pitfalls of reforestation, urban greening and tree equity. They will also provide diverse perspectives on tree planting and maintenance efforts and policy at the local level.
“Anyone interested in learning about the importance of trees in urban environments and climate resilience, as well as tree retention in the landscape should join us,” she said.
The agenda for each 90-minute webinar is listed below. To register, visit https://bit.ly/HansenTreesWebinar.
Tuesday, May 14: Trees as a Tool for Climate Change Mitigation and Resilience
4 p.m. Welcome—Annemiek Schilder, Director of Hansen Agricultural Research and Extension Center
4:05 p.m. Opening Remarks—Matt LaVere, Ventura County Supervisor District 1
4:10 p.m. Improving Outcomes of Tree Growing and Forest Restoration Efforts—Karen Holl, Professor of Environmental Studies, UC Santa Cruz
4:50 p.m. Climate Resilience through Urban Greening—Edith de Guzman, UC Cooperative Extension Specialist, Water Equity and Adaptation Policy, UCLA
5:30 p.m. Closing—Annemiek Schilder
Wednesday, May 15: Optimizing Tree Survival in a Changing Climate
4 p.m. Welcome—Emma Volk, Production Horticulture Advisor, UCCE Ventura and Santa Barbara counties
4:05 p.m. Cooling Urban Heat Islands with Climate-Resilient Trees—Janet Hartin, Environmental Horticulture Advisor, UCCE Los Angeles and San Bernardino counties
4:30 p.m. Keeping Trees Healthy from Sapling to Maturity—James Downer, Environmental Horticulture and Plant Pathology Advisor Emeritus, UCCE Ventura County
5:05 p.m. Dealing with the Inevitable Threat of Exotic and Invasive Pests—John Kabashima, Environmental Horticulture Advisor Emeritus, UCCE Orange County
5:30 p.m. Closing—Emma Volk
Thursday, May 16: Tree Advocacy and Planning at the Local Level
4 p.m. Welcome—Julie Clark, Natural Resources Community Education Specialist, UCCE Ventura County
4:05 p.m. Native Tree Restoration with Partners and the Public—Joey Algiers, Restoration Ecologist, Santa Monica Mountains National Recreation Area
4:30 p.m. Panel Discussion (Joey Algiers, moderator):
- Joey Algiers, Santa Monica Mountains National Recreation Area
- Mireille Vargas, County of Ventura Sustainability Division
- Mikaela Randolph, Green Schoolyards America
- Jan Scow, Registered Consulting Arborist, Ojai Valley
- Max Young, Ventura Regional Fire Safe Council
5:30 p.m. Closing—Julie Clark
- Author: Emily C. Dooley, UC Davis
Low-cost wine industry additive also improved feed efficiency and milk quality
Researchers at University of California, Davis, added fresh grape pomace left over from winemaking operations to alfalfa-based feed for dairy cows and found that methane emissions were reduced by 10% to 11%.
The preliminary findings could offer a low-cost sustainable pathway for vineyards to reduce waste while helping dairy operations maintain quality while cutting back on emissions of methane, which is a powerful greenhouse gas.
“This is the first time anybody has shown that this can work in California,” said Ermias Kebreab, an animal science professor and associate dean of global engagement at UC Davis. “You're reducing emissions, you're improving the quality and it may also reduce the cost of production.”
The pilot research project, which will be detailed in a paper later this year, also found that mixing in grape pomace improved feed efficiency and increased healthful fats, said Selina Wang, an associate professor of Cooperative Extension in small scale fruit and vegetable processing.
“We found that the feed with the additive of grape pomace changed the fatty acid composition of the milk and, in particular, increased the polyunsaturated fats, which are the main fats in grape pomace,” Wang said. “This suggests that supplementing the feed with an optimal fatty acid profile may have positive impact on the fatty acid profile of the milk and increase their health benefits.”
Symbiotic commodities?
In 2022, California was the leading dairy producer in the country, generating $10.40 billion in sales, while 90% of wine production came from the Golden State, with a market value of $5.54 billion.
Processing grapes for wine generates thousands of tons of waste in the form of grape pomace, which consists of leftover seeds, skins and stems. Dairy and livestock are responsible for more than half of the state's methane emissions, owed largely to cow burps.
They are the top two agricultural commodities in California, according to state production statistics, and reducing waste and emissions for both industries are key to the state meeting its climate goals.
Tannins for emission reductions
Wine grapes are high in fats and tannin, which is known to reduce methane emissions, so Kebreab sought to test if adding grape pomace to feed could have a positive effect while not adversely affecting production.
“It's a byproduct that's not being used much,” he said. “This is something that can be included in our efforts to try to reduce emissions.”
A mix of feed options
To do the research, scientists worked with Holstein dairy cows and gave the animals feed consisting of alfalfa, wheat, almond hulls, cottonseed and grain. After two weeks, the cows were split into three groups: A control group with no change in diet, another where the feed combination included 10% grape pomace and a third that received 15% grape pomace.
Every four weeks, the cow groups would change feed combinations.
They were fed twice daily by postdoctoral students and interns, and emissions were monitored daily. Milk production was documented in the morning and evening and milk samples were collected weekly to analyze for fat, protein, lactose and other measurements, which showed no differences between the control and other groups.
Methane and hydrogen emissions were reduced compared with the control group, suggesting that grape pomace reduced enteric emissions without affecting production.
“I think the dairy industry will be very interested in this,” Kebreab said. “Sometimes when you're using additives, they have palatability issues. With grape pomace, they absolutely love it.”
Next on the list is a trial with olive pomace and working to understand the mechanism that reduces emissions. “If we have a better understanding of the mechanisms, we can select the feed additive or a mix of feed additives to reduce dairy cattle emissions and make dairy milk healthier while making use of the agriculture byproducts,” Wang said. “There's a lot of room to grow in this space and we're excited about this work.”
The research was supported by the California Dairy Research Foundation.
This article was first published on the UC Davis news site.
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- Author: Grace Nguyen-Sovan Dean
When looking to improve a region's wildfire resiliency, considering the impact of neighborhood level action cannot be understated. By tapping into existing community ties, the Tahoe RCD's Network of Fire Adapted Communities (Tahoe Network) program is helping increase the number of Tahoe Basin homeowners taking proactive, educated steps toward wildfire preparedness. The Tahoe Network's multi-pronged approach utilizes information distribution and community organizing to support neighborhoods who are taking steps, both small and large, towards preparedness. “It's a team thing, for projects of this nature,” Jason Brand, Tahoe RCD FAC director notes. “Communities as a whole need to take action.”
When neighborhoods connect with Brand and his team to become a Tahoe Network ‘Fire Adapted Community Neighborhood', they join a supportive network of preparedness-minded homeowners and professionals. With Tahoe RCD assistance, Fire Adapted Community neighborhoods encourage individuals to take preparedness action through hosting events like defensible space and home hardening workdays. The RCD also facilitates neighborhood information sharing through a combination of online and in person communication, so that neighborhoods are kept up to date on actionable items, regional prescribed fire and fuel reduction projects, and more.
Since wildfire preparedness is an ongoing process, an energized base of homeowners is essential to the Tahoe Network's efforts. “You could be done with a defensible space project, then a storm comes through and blows pine needles onto your roof,” Brand illustrates. “It's a process, but we try to keep everyone excited.”
One way the Tahoe Network maintains community interest is through their program's group of Neighborhood Leaders. Neighborhood Leaders disseminate educational resources, host defensible space workdays, and help maintain momentum around wildfire awareness. Any resident interested in spearheading neighborhood preparedness projects is encouraged to become a Neighborhood Leader, with Brand noting how “some have already done their defensible space work and want to reach more of the community, and some are just getting introduced to these concepts because they got a call from their insurance agency.” When looking to increase their knowledge base or get ideas for community events, Neighborhood Leaders can turn to the Tahoe Living with Fire website, which hosts a resource library specifically to support Neighborhood Leader activities. The Living With Fire site itself is a collaborative effort, run by University of Nevada, Reno Extension yet utilized as an information hub by many other organizations. This website is also where Brand points anyone curious about wildfire preparedness, as it houses a variety of booklets and fact sheets that guide beginners into becoming ‘ember aware'.
Though the ongoing work may seem daunting, Brand shares there has been a marked increase in neighborhoods seeking to improve their wildfire readiness within the Basin. There are now 72 Fire Adapted Community neighborhoods, and over the past two years the region's number of nationally recognized Firewise communities jumped from 12 to 34, with 6 more seeking recognition. This is a tangible indicator to Brand that more neighborhoods are serious about organizing local preparedness efforts: “There's a lot of steps that communities need to take to become Firewise. You have to keep people talking, learning, and taking action.”
Making learning approachable is something Brand sees as key to ensuring more residents can make informed, confident choices to protect their home. “Just having a citizenship educated on the pressures our ecosystem is experiencing has a direct effect on the forest,” Brand states. “When people start protecting their home, there is inherently less pressure on our forests.”
Forest landowners and community members in El Dorado, Nevada, and Placer counties interested in learning more about forest management are encouraged to register for the next UC ANR Forest Stewardship workshop series. The Tahoe Basin Forest Stewardship workshop will cover forest management planning, forest and fire ecology, and forest health, and more. Sign up here. Registration is $60, and scholarship funding for registration fee is available. For questions, please contact kcingram@ucanr.edu.
- Author: Grace Nguyen-Sovan Dean
While trees and forests are often emblematic of constancy in a fast-paced world, our state's forests are actually changing before our eyes. Since 2020, the UC ANR Forest Stewardship Education (FSE) program has been helping California's forest landowners be proactive about the inevitable shifts their forestland will experience. The Forest Stewardship and Post-Fire Forest Resilience workshop programs use an online educational format, which guide landowners through the basics of creating forest management plans and managing post-fire landscapes, respectively. Now, the FSE team is piloting a new program to engage a wider audience of forest landowners and community members passionate about trees.
This spring, the Forest Stewardship and UC ANR Fire Network teams are holding the first California Tree School, where individuals attend multiple in-person classes on the forestry topics they are most curious about. “The existing online programs are very focused on forest management plans and post-fire activity, and [Tree School] lets us tackle other topics,” said UC ANR forest and natural resources advisor Susie Kocher.
A one-stop shop for continuing forestry education
California Tree School was inspired when Forest Stewardship Academic Coordinator Kim Ingram, Post-fire Academic Coordinator Katie Reidy and Kocher attended Oregon State University Extension's Tree School event in Clackamas County, Oregon. OSU Tree School is a day-long experience comprised of classes that cover the different dimensions of forestry: constructing a house from your own timber, carbon cap and trade, and buying portable sawmills are just a small sampling of the options for attendees. OSU Tree School students ranged from forest landowners to community college students, contributing to a space which would facilitate community connections as well as learning.
Kocher described the experience as a “a great one-day, one-stop shop to keep up-to-date on what we [forest landowners and professionals] should know.” Excited by the breadth of opportunities offered at OSU's Tree School, Ingram, Kocher and Reidy were inspired to bring the format to California.
“It's our time to discuss the whole ecosystem,” noted Reidy. “Tree School is bringing in the trustworthy, reliable group of experts who can provide more information on the questions pertaining to landowners' specific goals.”
California Tree School will be offered in two locations this spring, with CA Tree School- Hopland taking place on May 4, and CA Tree School- El Dorado on June 1. Similar to OSU's Tree School, attendees are expected to be a mix of forest landowners, natural resource professionals and interested community members.
Connecting statewide professionals; personalizing forestry education
Tree School offers attendees the opportunity to focus on subjects that pertain to their specific learning needs. This personalized approach is a new foray for the Forest Stewardship team, but is something that Ingram says workshop participants have been wanting for some time.
“Our participants never think they learn enough. They are always asking for more information, and this Tree School gives us the chance to expand on things we might not have had a chance to go over in the workshop series,” remarked Ingram. Additionally, Tree School instructors had creative freedom when it came to developing their classes, from the topic to the class format. This is evident when browsing through each session's class catalog. CA Tree School attendees choose four classes to attend, meaning they can build their first burn pile, understand the ins and outs of regional wildlife, paint outdoors and learn how to aid statewide reforestation efforts all in one day.
“I felt that Tree School created a sense of trust around complex topics,” noted Reidy about her experience last year in Oregon. For CA Tree School, the Forest Stewardship team aims to do the same. This meant recruiting from throughout the UC ANR network and other organizations, including CALFIRE and CARCD (California Association of Resource Conservation Districts), to bring trusted voices to the community.
“What's exciting about Tree School is that we are bringing natural resource professionals from all around to engage everyone at the same time, and all in one place,” noted Ingram.
The team is excited to see all the connections that will be made between community members and professionals during this pilot year, and “if this is successful and we can bring it back next year,” commented Kocher, “we are definitely interested in partnering with more people and expanding our outreach.”
Making CA Tree School an in-person experience was important to the team, as much of the education is hands-on. Additionally, Kocher sees enhanced potential for building personal connections: “In person, you have this opportunity for people to identify as part of a community,” noted Kocher, “So I'm excited for people to hang out with each other.”
Encouraging an informed community
“You can't separate the emotional from the physical, and there are a lot of topics in forestry like wildfire and economics that can be a bit of a downer,” said Ingram. “I'm excited to help create a positive learning environment, and one that encourages folks to turn to UC Cooperative Extension for these resources.”
“Our main goal here is to get science out there,” concurred Reidy. “The more exposure people have to science, the more confident they feel in themselves and their wants and needs.”
- Author: Grace Nguyen-Sovan Dean
This spring, the Forest Stewardship and UC ANR Fire Network teams are holding the first California Tree School, where individuals attend multiple in-person classes on the forestry topics they are most curious about. “The existing online programs are very focused on forest management plans and post-fire activity, and [Tree School] lets us tackle other topics,” shared UC ANR Forest and Natural Resources Advisor Susie Kocher.
A one-stop shop for continuing forestry education
California Tree School was inspired when Forest Stewardship Academic Coordinator Kim Ingram, Post Fire Academic Coordinator Katie Reidy, and Kocher attended Oregon State University (OSU) Extension's Tree School event in Clackamas County, Oregon. OSU Tree School is a day-long experience comprised of classes that cover the different dimensions of forestry: constructing a house from your own timber, carbon cap and trade, and buying portable sawmills are just a small sampling of the options for attendees. OSU Tree School students ranged from forest landowners to community college students, contributing to a space which would facilitate community connections as well as learning.
Kocher described the experience as a “a great one day, one stop shop to keep up to date on what we [forest landowners and professionals] should know.” Excited by the breadth of opportunities offered at OSU's Tree School, Ingram, Kocher, and Reidy were inspired to bring the format to California.
“It's our time to discuss the whole ecosystem,” noted Reidy. “Tree School is bringing in the trustworthy, reliable group of experts who can provide more information on the questions pertaining to landowners' specific goals.”
California Tree School will be offered in two locations this spring, with CA Tree School- Hopland taking place on May 4, and CA Tree School- El Dorado held on June 1. Similar to OSU's Tree School, attendees are expected to be a mix of forest landowners, natural resource professionals, and interested community members.
Connecting statewide professionals; personalizing forestry education
Tree School offers attendees the opportunity to focus on subjects that pertain to their specific learning needs. This personalized approach is a new foray for the Forest Stewardship team but is something that Ingram says workshop participants have been wanting for some time.
“Our participants never think they learn enough. They are always asking for more information, and this [Tree School] gives us the chance to expand on things we might not have had a chance to go over [in the workshop series],” remarked Ingram. Additionally, Tree School instructors had creative freedom when it came to developing their classes, from the topic to the class format. This is evident when browsing through each session's class catalog. CA Tree School attendees choose four classes to attend, meaning they can build their first burn pile, understand the ins and outs of regional wildlife, paint outdoors, and learn how to aid statewide reforestation efforts all in one day.
“I felt that Tree School created a sense of trust around complex topics,” noted Reidy about her experience last year in Oregon. For CA Tree School, the Forest Stewardship team aims to do the same. This meant recruiting from throughout the UC ANR network and other organizations, including CALFIRE and CARCD, to bring trusted voices to the community. “What's exciting about Tree School is that we are bringing natural resource professionals from all around to engage everyone at the same time, and all in one place,” noted Ingram.
The team is excited to see all the connections that will be made between community members and professionals during this pilot year, and “if this is successful and we can bring it back next year,” commented Kocher, “we are definitely interested in partnering with more people and expanding our outreach.”
Making CA Tree School an in-person experience was important to the team, as much of the education is hands-on. Additionally, Kocher sees enhanced potential for building personal connections: “In person you have this opportunity for people to identify as part of a community,” noted Kocher, “So I'm excited for people to hang out with each other.”
Encouraging an informed community
“You can't separate the emotional from the physical, and there are a lot of topics in forestry like wildfire and economics that can be a bit of a downer,” said Ingram. “I'm excited to help create a positive learning environment, and one that encourages folks to turn to [UC Cooperative] Extension for these resources.”
“Our main goal here is to get science out there,” concurred Reidy. “The more exposure people have [to science], the more confident they feel in themselves and their wants and needs.”