Announcing “Sudden Oak Life: The Science & Practice of Forest Restoration”, a training course sponsored by Gaia University

14 02 2018

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Please let me share with you an important announcement! As you may know for over 10 years I have been working with a committed group of people to heal sick trees using a technique called fire mimicry, which is based on traditional approaches to land and tree care by indigenous peoples. Thankfully, our efforts have resulted in a rapid and strong recovery of many hundreds of oaks and other trees, as documented here at the Sudden Oak Life website (www.suddenoaklife.org).

Still, there are countless more trees that need our help, requiring more practitioners who are called to heal these trees. Through the years I have been encouraged to establish a training program for new professionals to implement this work over wider areas. Well, that day has come.

I’m pleased to announce the establishment of my course “Sudden Oak Life: The Science and Practice of Forest Restoration” sponsored by Gaia University, beginning March 21, 2018. This course is designed to give folks the knowledge and skills to establish or expand their own practice of tending and healing trees. Details and registration can be found here: http://gaiauniversity.org/sol/

The course consists of both an online portion (March 21 – June 11, 2018) and a 5-day hands-on practicum (Oct. 15 – 19, 2018), which will be held in the foothills of the Santa Lucia Mountains in the Central California coastal ecosystem.

Whether or not you are personally interested in this course I would greatly appreciate your efforts to share this post with your nature-minded friends.

Many Kind Thanks,

Lee Klinger, Big Sur, CA

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Sudden Oak Life workshop hosted by UCSC Arboretum on March 3, 2018

30 01 2018

I’ll be presenting a Sudden Oak Life workshop at the University of California Santa Cruz Arboretum on Saturday, March 3, 10 am – 4 pm. Come learn the practice of healing oaks. It’s a hands-on workshop! Details are here: https://arboretum.ucsc.edu/news-events/events/sudden-oak-life.html

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Oaks in Atherton, CA respond nicely to fire mimicry

29 01 2018

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I’ll let these photos tell the story of how coast live oaks respond to fire mimicry treatments.

I should note that the last oak in this series is infected with a stem canker disease, probably Sudden Oak Death, yet it still seems to be improving slightly.

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Ancient Indian-era oaks respond to fire mimicry

2 12 2017

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Three years ago I treated several ancient, Indian-era oaks with fire mimicry. These oak have classic lapsed-pollard shapes, indicating they were culturally modified by the native people several hundred years ago. Every oak shown here (above an below) is over 200 years old, and possibly much older. The lapsed-pollard shape is evident by the multiple large boles branching from one location near the base of the trunk. Younger oaks of the same species growing nearby typically exhibit a dichotomous branching pattern, so the anomalous shapes of these older oaks is most likely an indication that they were culturally modified (pollarded) at a younger age by California native people. The present day forms of these trees show that the pollards have lapsed, that is, the trees are no longer being tended. Pollarding is a widely used modern tending practice in orchard trees, creating broad spreading canopies that maximize fruit or nut production.

In my mind, the ancient oaks shown here are Native Americans artifacts. These oaks provided the primary sustenance of the local tribes, acorn. Oak orchards were grown, tended, and shaped by the native people in ways that helped to sustain both themselves and the bountiful wildlife.

It’s nice to have a proven model for oak forest restoration. It is the model I and others are following. Please enjoy these results!

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Long-term response of oaks to fire mimicry

1 12 2017

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Another milestone! For 13 years these coast live oaks have been regularly tended with fire mimicry. These oaks are longest continuous case studies of fire mimicry in my records. Most of the work has been done by Leith Carstarphen following my recommended treatment plan.

Apart from one oak that was lost this past year due to slope failure, the photos (above and below) show significant improvement in the canopy density and vitality of the oaks. The healthy growth of the smaller trees in the foreground now partially obstructs the view of the canopies of two oaks. Still, the oaks continue to grow and thrive, despite the presence of disease (probably Sudden Oak Death) in some of them.

Previous years’ results for these oaks can be found here for 2016, here for 2015, and here for 2014.

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Fire mimicry is improving the health of oaks in Redwood City, CA

22 11 2017

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Today I would like to show you the progress of some oaks that were treated with fire mimicry starting in 2013. Previous years’ results with the same trees are shown here and here. As can be seen in these photos, most of the oaks are continuing to show a strong and in some cases a dramatic response to the treatments, including the last tree in the series which is a Native American era heritage oak. The photos speak for themselves. Enjoy!

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Fire mimicry treatments likely saved homes and oak groves from Sonoma wildfires

15 11 2017
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Compare untreated oaks in the background (right) with oaks in the foreground (left) treated with fire mimicry.

In 2009 I was contacted by a property owner who had just purchased a home and several acres of oak forest near the town of Sonoma, CA. The forest had been neglected for many years and was in poor health. There was also a dense growth of underbrush around the trees and many dead limbs on the oaks. I provided him a fire mimicry treatment plan that involved clearing of the underbrush and pruning the oaks, focusing on removing the ladder fuels near the ground. I also proposed to fertilize the oaks with alkaline-rich soil minerals, removed mosses and lichens from the trunks, and applied limewash.

The owner agreed to this plan and during the next couple years I and several colleagues spent many weeks clearing brush, pruning limbs, burning brush piles, and fertilizing a large grove of more than 50 valley oak, blue oak, and coast live oak trees.

Afterwards, in 2015, another property owner in Glen Ellen, CA contracted with me to care for her oaks with fire mimicry. This grove of about 30 oaks was treated in the same manner as described above.

Both of these properties were impacted by the recent wildfires in Sonoma.  Yesterday I visited these properties and I’m pleased to report that they sustained very little permanent damage. No structures were lost and nearly all of the oak trees appear to have survived. I estimate that the survival rate of trees on both properties is about 98%, although it will be another year or so before we know the exact percentage.

With regards to the first property, the photos here show that the fire burned the adjacent forest severely, with a complete loss of the forest canopy in places. However, once the fires reached the areas treated with fire mimicry, the severity lessened and fire stayed on the ground. None of the trees in the treated areas experienced a canopy fire. The boundary between the treated and untreated trees, showing this difference in fire severity, can be seen in the above and below photos.

I should add that while this home did not burn, four nearby homes were completely destroyed.

The second property also had no loss of structures and only minor damage to the oaks (see last photo below). The fire did not spread into the canopies and all of the affected oaks will likely recover.

With regards to the “cause” of these severe wildfires, some focus on the source of the initial spark, such as a downed power line or arson. Others point the finger at climate change affecting the health of the forests.

My take, based on the results shown here and elsewhere in the scientific literature, is that the cause of the severe wildfires is due to the suppression of fires and lack of management of the forests. Historically, oak forests were regularly burned by the California native people to enhance the health of the oak savanna ecosystem. Under a frequent burning regime the fires tended to be ground fires, which rejuvenate the soils but do not damage the tree canopies. Without these traditional management practices, our oak forests have become overgrown and stressed. Now-a-days, when fires do burn, they tend to be destructive canopy fires, rather than rejuvenating ground fires.

The oak forests and homes on these properties were saved in spite of adjacent ignition sources from raging fires. Nor did we change the climate. We simply went in ahead of time and mimicked wildfire in these areas. It is clear to me from this and other studies that proper forest management is fundamental in solving the wildfire problem in California.

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Fence line of property separating burned/untreated oak forests (right) and unburned/treated oak forests (left).

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