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Posts Tagged: forestry

The smart harvest of Christmas trees leads to a healthier forest

Most California forests have too many trees, so carefully selecting pines, cedars or firs in natural areas to enjoy for the Christmas season is good for the mountain landscape.

“It's a great idea to cut down young trees for fire safety and vegetation management,” said Susie Kocher, UC Cooperative Extension forestryadvisor in the Central Sierra. “The earlier you do it, the less work it is to manage the trees in the long run.”

After 100 years of fire suppression, most California forests - like this one in the Stanislaus National Forest - have too many trees. (Photo: USDA)

Kocher lives and works in Lake Tahoe. Every year, she gathers her family and friends to find forest-fresh Christmas trees in the Lake Tahoe Management Area. Of the 18 national forests in California, 11 allow Christmas tree cutting with the purchase of a $10 permit. (See the list below.) People who own mountain cabins or other forestland may invite family and friends to help thin trees on their personal property, which can then be used for the holiday season. However, never harvest trees on public or private property without permission.

“We have a lot of small trees on public and private forest lands because of fire suppression,” Kocher said. “They're all competing with one another and many will ultimately die. A smart harvest of Christmas trees can improve the forest by helping with thinning.”

A group of friends and family gather in the forest to harvest Christmas trees. (Photo: Yolanda Tuckerman)

People with permits to cut down Christmas trees in national forests must follow strict guidelines. Follow the same guidelines on private land to ensure a smart harvest. Before chopping down the tree, be sure it is within 10 feet of another living tree, the trunk is no more than 6 inches in diameter and the stump left behind is no higher than 6 inches off the ground. Some national forests limit the harvest to certain tree species.

Despite committing to these guidelines when obtaining a permit, Kocher said she has seen some Christmas tree harvesters make ill-advised choices.

“Some people are too lazy to find a good tree and will cut the top off a large tree,” Kocher said. “You can be driving around and see what looks like a poor old Dr. Suess tree, which is what grows from the ugly remnant left behind in the forest.”

Such irresponsible Christmas tree cutting has led some forests to discontinue Christmas tree harvesting for personal use.

A child with a Christmas tree selected from the forest. (Photo: USDA)

There has been ongoing debate about whether a fake tree or real tree is more environmentally friendly, but for Kocher, there is no question.

“Fresh real trees are a renewable resource, fake trees are not,” she said. “It's an agricultural product. You can contribute to a local farmers' income or you can help thin the forest. Picking and bringing home a fresh tree, decorating it and smelling it defines the season for me. Without it, I don't think it would feel like Christmas.”

U.S. National Forests in California that allow Christmas tree cutting with a permit are:

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Purchasing real Christmas trees from tree lots in town or at choose-and-cut tree farms is a way to support farms and economies in rural areas and contribute to environmental sustainability.

 

Posted on Monday, December 4, 2017 at 9:34 AM
Tags: Christmas (1), forestry (2), Susie Kocher (1)

Graduate Students in Extension study key California concerns

In 2013, a group of graduate students in the Department of Environmental Science, Policy, and Management (ESPM) at the University of California, Berkeley sought out faculty support and successfully collaborated with UC Agriculture and Natural Resources (UC ANR) to launch the Program for Graduate Students in Extension (GSE). Participants receive up to a year of funding to conduct applied research and outreach to California communities, coordinate workshops and training events, and co-author materials with ANR academics. Over the course of the three-year pilot program, 14 students from across the College of Natural Resources at UC Berkeley have participated.

“There's really no program quite like this, where students can gain hands-on, graduate-level training in extension and outreach,” says ESPM professor John Battles, who chaired the program's steering committee. He adds, “We're grateful to all the UC ANR advisors and specialists who have offered invaluable mentorship to student fellows.”

Image of a schoolyard garden. (Photo: Alana Siegner.)

Sustainable Food Systems and Climate Education

Alana Siegner (Energy and Resources Group, 2016–17 fellow) believes that to ensure the environmental sustainability of agricultural landscapes and to improve health outcomes for young people, it's important that students understand the scientific and social causes and consequences of climate change as it plays out in the U.S. food system. During her fellowship, she adapted existing climate change curricula to fit within farm-to-school programs, integrating food- and farming-specific examples into general lessons on climate adaptation and mitigation. The lessons, designed for students in grades 8 through 10, are hands-on, interdisciplinary, and solutions oriented, unfolding in both the classroom and the school-garden environments. Siegner piloted the curricula and other professional development resources with teachers at schools in Oakland and in Washington State's San Juan Islands. 

Kripa Akila Jagannathan

Climate-Resilient Agriculture

Despite several advances in modeling techniques, climate projections are not widely used in agricultural decision-making. Kripa Akila Jagannathan (ERG, 2015–16 fellow) wanted to bridge this gap between climate science and decision-making needs by improving the understanding of what farmers consider relevant climate information. She interviewed almond growers in California about how they'd previously used climate information, what climatic variables were most relevant to them, and the content and communication methods that could make information on future climate more usable. Jagannathan's interviews showed that almond growers have experienced changes in climate over the past few decades that have affected plant growth. She hopes that providing growers with appropriate information on past trends and future projections can help them to make decisions that are better adapted to future climate.

(Photo: Stella Cousins)

Forestry and Ecosystem Education

Stella Cousins (ESPM, 2014–15 fellow) collaborated with the Forestry Institute for Teachers, a free program that provides K–12 teachers in California with knowledge and tools for teaching their students about ecosystem science and forest resource management. In addition to presenting current research to participating educators, she shared do-it-yourself miniature microscopes that can help learners of all ages explore seeds, cells, fur, and other tiny wonders. Magnifying tree-core samples from the Sierra Nevada as an example, she demonstrated how a lesson in dendrochronology can facilitate classroom learning on the ways forests grow and are shaped by climate. Cousins says, “I hope that this project will support existing efforts to make sound and sustainable ecosystem-management choices, and also help foster lifelong curiosity in California's youth about the natural world.”

Conservation and Land Easements

Conservation easements are currently one of the primary channels for protecting private land. Since easements restrict development for both current and future owners, resale value is presumably diminished, and landowners are typically compensated with a one-time payment from a conservation group. Reid Johnsen (Agricultural and Resource Economics, 2016–17 fellow) wanted to explore the relationship between rancher identity, community, and potential preferences for alternative payment structures. He surveyed landowners in Marin and Sonoma counties to gauge their support for different options, including leases and annual payments for ecosystem services. He also constructed an economic model of stakeholder behavior to help assess which payment structure delivers the greatest combined welfare to landowners, conservation groups, and the public.

(Photo: Luke Macaulay)

Hunting and Conservation

Luke Macaulay (ESPM, 2014–15 fellow) surveyed private landowners and land managers in California to determine how recreational hunting may influence decisions regarding land-use and conservation practices. He regularly spoke on his survey findings and ran a workshop in Montana to encourage cooperative conservation efforts between hunters and environmentalists. “The feedback from the advisors on my mentorship team was invaluable in improving the quality of my research,” he reflects. The experience also had an impact on his career: In 2016, Macaulay was hired by CNR as a Cooperative Extension specialist in rangeland planning and policy.

Posted on Tuesday, May 23, 2017 at 9:27 AM
 
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