On Sunday we were working outside on a project and happened to look up at the sky. A plane had been skywriting, spreading some advertising copy in the sky to the north–some sort of ad for Geico insurance, I think. After that text was done, up popped this message:

Here’s the same picture turned upside down if you’re not one of those people who read books inverted:

“Be fire safe?”
Here in San Diego we often don’t obsess about fire until after the end of summer, when the land around us has gone without water for six months and the hot desert winds blow from the east. The end of October is classic fire season for us, the time of year when the firestorms of 2003 and 2007 ravaged this part of the state. But last month’s Santa Barbara fire and this little bit of public-service skywriting got me thinking about the place of fire in the local ecosystem.

Three meetings ago, the local chapter of the California Native Plant Society hosted wildfire ecologist Richard Halsey. Director of the California Chaparral Institute, Halsey has been working to try educate the public about new understandings about fire. In addition to the institute, he’s been a strong voice in the media, and has authored the book, Fire, Chaparral and Survival in Southern California. (Town Mouse & Country Mouse did a nice post on Fire this month, which included some good quotes from Halsey.)
Anyone who thinks that plant society meetings are slow, drawn out affairs wasn’t at the meeting I attended. Halsey and one of the other biologists invited to speak went mano a mano over some of the ideas that represented a break from what is still being taught in schools.
I’m no biologist, but at least some of Halsey’s points made sense to me. Here’s a short list of some of what he had to say:
- The notion that “chaparral needs to burn” is a crock of bat guano. Although the ecosystem is adapted to coming back after a blaze, it doesn’t need fire to thrive.
- When areas burn more frequently than the plants living there are adapted to, however, many original plant species die out and invasives begin to move in. Type conversion of chaparral into a weedy grassland of exotic species can begin.
- Extensive fire breaks gouged into a natural area are a magnet for weed species that can take over the ecosystem. (See the previous bullet point.) Of all of these points, the other biologist made the strongest argument against this position of Halsey’s, citing a study where areas with abandoned fire breaks revert almost completely to their previous species after a certain number of years.
- A new study looking at ocean sediments in the Channel Islands shows that large fires have occurred in Southern California, but were separated by far greater numbers of years than we’re seeing today. Virtually all the fires we’re seeing today have been caused by humans.
- A legend of the local Kumeyaay people mentions a particularly devastating fire several hundred years before the arrival of the Spanish in California and Mexico. After the fire, the Kumeyaay had to live in the desert for an entire generation before the land west of the mountains was habitable again.
As recently as 2003–2004, when I was working a photography series on the 2003 Cedar Fire, I put together an artist’s statement for that body of work that included the sentence, “The land needed to burn, to regenerate.” Halsey has convinced me that it’s time for me to rethink that position.
James SOE NYUN. Hill with Wildflowers, Cuyamaca Rancho State Park, 6 Months Later, 2004. Chromogenic print, 15 x 18 3/4 in.
May 26 2009 | Categories: landscape | Tags: fire • fire ecology | 3 Comments »


It’s spring, all right. The garden continues to bloom away manically, but the outdoor places around town have been no slouch, either, when it comes to flowers.
This Garden Blogger’s Bloom Day, hosted by May Dreams Gardens, features a gallery of some blooms from the garden mixed in with blooms from Mission Trails Regional Park in San Diego.
In the top photo from Mission Trails you can see that the yellow-flowered deerweed, Lotus scoparius, has colonized many of the sunny areas that burned four and a half years ago. As the landscape recovers, other plants will come in and stake their claims. The second image from near the top of Fortuna Peak shows that other areas are also recovering from the fires, though slower than farther downslope.
You can hover over each image below for its name, or click it to see a larger photo. While you can probably tell what’s a wild plant and what’s in the garden, there’s an answer key at the end if you’re into quizzing yourself. (A few of thee are tricky in that they’re local native plants that have been incorporated into the garden.)
Answers:
Wild, garden, garden;
garden, wild, wild;
wild, garden wild;
garden, garden, garden;
garden, wild, garden;
wild, garden, wild;
wild, wild, wild.
April 15 2009 | Categories: gardening • landscape | Tags: Add new tag • fire • fire ecology • flowers • gbbd • in bloom • Mission Trails Regional Park | 5 Comments »
After San Diego County’s fires of 2003 moved into new areas, I was one of those tacky disaster tourists who went into some of the recently reopened areas. It’s interesting what motivates people to do things of the sort. An acquaintance with documentary photographer aspirations scours the world for disaster, and has gone to witness famine in Africa and Asia, and was in Banda Ache in 2005 not long after the previous December’s tsunami. What can you witness in times like that?
I wasn’t looking for human suffering. Also, I had no interest in the mawkish Hallmark-card exploitation of some weird sort of notion of human dignity that emerges in desperate times. I was primarily interested in the fires as one whopping dose of reality of the power of nature, just as I have this fascination of volcanoes and earthquakes, not for the terrors they can unleash on us humans, but more for a much-needed dose of human humility. I think that we humans are blisteringly arrogant as a species and need to be rattled into consciousness about our place in the universe.
You can make some of these discoveries while gardening, observing the world and uncovering your place in it. But I guess I’m dense enough that it takes something cataclysmic to give me the rest of the story. Dunno…maybe it’s the same kind of need that drives people to mountain climbing or NASCAR…
So there I went, out into the burn areas, mostly to the backcountry, but also around my neighborhood. Looking back at the photos I took I think that I was looking to find some sort of order or beauty out of the mess. Was it looking for some sort of reassurance? Or maybe something approaching acceptance? Making peace with the realities of the world?
La Jolla Panorama with Smoke I, Day 3, 2003.
Here’s the left half of a diptych taken on the third day of the fires from the top of Mount Soledad, a viewpoint that on other days gives you a view of the ocean, downtown San Diego and the mountains to the east. This was day three of the fires, with the flames now probably no closer than ten miles away. But that day most of what you saw was the air, thick with smoke and the color of burnt caramel.
“Tim Loves Julia” Rock, near El Capitan Reservoir, Day 3, 2003.
Taken the same day as the previous image, this was out just a couple miles from where the Cedar Fire began. With the winds blowing east-to-west, the air was surprisingly clear immediately overhead but the smell of ash was everywhere. This boulder with the graffiti was probably about as close as I got to looking at that human dignity thing. I wonder if Tim and Julia are still together. Or was this just some drunken midnight outing with a sixpack and a can of spraypaint?
My first tourist pictures turned into a small photographic series, The Fire Works. Over the course of several months I visited many areas that had burned and looked for the signs of change, restoration or recovery.
Mission Trails Park II, 3 Months Later, 2004.
After three months and a few rains things were still blackened, but the green was starting to come back.
Mission Trails Park VI, 3 Months Later, 2004.
Taken the same afternoon as the previous image, the signs of recovery are a little more subtle in this picture. Immediately after the fire the rocks were black. Now they’re washed white. In a large print of this image you can see little seedlings returning to the park.
Rock and Branches, Cuyamaca Rancho State Park, 6 Months Later, 2004.
The Cuyamaca Mountains experienced some of the most intense burning. But add some time, sunlight and water and you end up with one of the more spectacular spring wildflower blooms I’d seen in a few years.
Hill with Wildflowers, Cuyamaca Rancho State Park, 6 Months Later, 2004.
…And this is one of the last images I took in the series, the following May. With the majority of the pines in the Cuyamaca Rancho State Park wiped out, restoration was far from complete. It may take longer than my lifetime, and things will never be exactly as they were. But nature is doing what it does and doing it beautifully.
This project was a real eye-opener for me. You can read about the transformations that occur after a fire and appreciate the facts. Still, there’s nothing like getting out into the areas that were affected to give me a much deeper appreciation of the changes.
After 2007’s fires, however, after watching too many days of disaster coverage on television, I had no inclination whatsoever to repeat my post-fire surveys of 2003 and 2004. I stayed in the house, turned on the HEPA air filter I’d bought after the earlier fires, and tried my best not to let the horrific news coverage get to me. Sometimes you feel that a human being has seen enough.
Speaking of things that humans probably shouldn’t have to ever live through, let me plug a book by one of my recent coworkers, Paul Harris, who’s recently published Diary From The Dome: Reflections on Fear and Privilege During Katrina.
Paul went as tourist to New Orleans, looking to spend a laid-back week taking in what the Southern city had to offer. Instead he ended up in the middle of Hurricane Katrina, evacuated to the Superdome along with thousands of the city’s residents who couldn’t find a way out of town. You’ve heard or read of some of what happened there, but Paul gives an especially harrowing account of the the experience. He saw and lived through things none of the press reported, including how being a white tourist gave you privileges that none of the majority black residents were offered. This book will open your eyes.
October 19 2008 | Categories: art • landscape • photography • places | Tags: Cedar Fire • fire • fire ecology • Hurricane Katrina • Paul Harris | 1 Comment »
The pointleaf manzanita seeds I ordered ended up being from one of the many plant species (not only manzanitas) that depend on fire to perpetuate their species. In nature, a brisk fire might wipe out many of the existing plants, but the fire also creates an opportunity for the seedbank to come to life. Without the necessary fire, the seeds just lie on the ground–that’s if they don’t get eaten by critters.
The subjects in this experiment exhibit really really hard shells that protect the embryo inside. Getting word from a hospitable outside world to the swaddled seed germ is the challenge. The seed packet I received recommended soaking them in sulfuric acid for six to fifteen hours. That’s one way to break through the seed coat to get moisture and nutrients inside.
Doing research on similar manzanitas, some sites recommended scratching the seed coat, making sure not to damage the germ inside. Some papers recommended building a four-inch pile of combustibles above the seeds and setting the pile on fire. And yet another recommendation was to boil the seeds for fifteen to thirty seconds (one source) or one to two minutes (another source).
No matter which of the above methods was tried, the seeds also required cold-stratification to convince them that they had endured a near-freezing winter and could begin growth. Which seed-torture method to try was the question.
Sulfuric acid: Where can a non-chemist get it easily? And it sounded a tad dangerous.
Scratching the seed coat (sometimes called scarification): Tedious for more than a couple seeds, and how could I be sure I didn’t scratch off too much? Or not enough?
Building a fire over the seeds? This method also sounded dangerous, but potentially fun.
Boiling the seeds (a variant on scarifying seeds): Sounded safer than acid or fire, but do you go for fifteen seconds or two minutes? Wouldn’t too long kill off the little embryos?
I think that temperamentally I’m part mad scientist. I thought an experiment to test out all the recommended methods might be instructive–and at least a little entertaining.

Acid bottle

Sulfuric acid soak
I found some weak sulfuric acid in a little squeeze bottle at a pool supply store. At a concentration of less than 1%, it was meant for testing water, not for playing with the acid balance. Pretty weak excuse for acid, but worth a try. I soaked some seeds for 18 hours overnight, adding a little time to the end because the stuff was so dilute. (A day after doing this I encountered an old bottle of drain cleaner in the garage, something labeled sulfuric acid. I’ll try another soak with the
real stuff later on.)

Scratching the seed coat
The next method was to scratch the seed coat. I used a steel file to break the seed coat and a pair of pliers to hold the seed. I scraped varying amounts off the seed coat, from a moderate amount to a fairly aggressive amount. This was hard, slow, delicate work–way more difficult than I thought it would be.



After the burn
I said earlier that building a little fire might be fun. It was, though I smelled like smoke for hours afterward. The flames burned brightly with the aid of a fireplace lighter, then the embers hung around for a good ten more minutes or more.
Somehow this approach seemed to make the most sense to me. If the plants rely on heat, this solution would provide it. If they rely instead on some secret ingredient that emanates from burnt wood, this method would give them that. And if the burning helps break through the hard seed coat, this method could do that, too.
It goes without saying: You need to use a non-flammable pot to do this!

Boiling the seeds
And my last method was boiling the seeds. I brought water to a boil, threw in a few seeds, and picked a forty-five second time period to leave them on the heat. The boiling seemed to soften the seed coating, and I tried to pull off what I could.
No proper scientific experiment is complete without a control group, so there were some additional seeds that I tortured in no way. I was running out of seeds pretty quickly.

Drawer with pots of seeds
Each of the groups of seed were then potted up, labeled, watered, covered with a bag, and then put in the low veggie drawer next to where I store the film for my cameras. Now I keep them moist–not wet–and wait for two months. At the end of November I’ll take the pots out and move them to my unheated greenhouse or maybe a warm windowsill, for temperatures higher than in the fridge. After their various tortures and a proper period of stratifying, maybe I’ll be crowded with so many manzanitas that I can give them away to everyone I know in the spring. Or not.
I’ll post the progress as I go along…
October 01 2008 | Categories: gardening • my garden • plant profiles | Tags: Arctostaphylos pungens • fire ecology • germination • Mexican manzanita • pointleaf manzanita • scarification • seeds • stratification | 3 Comments »