Posts Tagged: wildfire
Bigcone Douglas-fir is an evergreen conifer native to the mountains of Southern California. Repeated wildfires and drought are threatening the species' existence in its native range, reported Bettina Boxall in the Los Angeles Times.
The reporter visited a Santa Barbara County site peppered with tall, dead trees where UC Cooperative Extension fire specialist Max Moritz is studying the species' fate.
"You don't see anything," he said. "It has a fairly depressing quality to it, given the mortality and no regeneration."
The area was burned by the Zaca Fire 11 years ago, something the fire-resistant conifer can generally withstand. Moritz and research assistant Ryan Salladay found evidence that the trees survived the fire, but then died sometime later. They are trying to determine what did them in by recording the aspect of the slope, collecting tree core samples, measuring the water stress in living trees, looking for wildfire impacts, and checking for seedlings.
“The drought-following-fire issue is a total reshuffling of what might come back or survive,” Moritz said.
U.S President Donald Trump criticized forest management in California and threatened to cut off federal emergency funding this week, eliciting confusion and condemnation, reported Ryan Bort in Rolling Stone.
The International Association of Fire Fighters released a statement calling Trump's move "disgraceful." "While our president is tweeting on the sidelines in DC, our fellow Americans 3,000 miles to the west are mourning loved ones, entire communities have been wiped off the map and thousands of people are still trying to figure out where they are going to call home."
The reporter wrote that the president is fixated on the state's role in causing forest fires, but the federal government owns the majority of forested land in California. Moreover, the devastating Camp and Woolsey fires of 2018 were not forest fires; they were wildland-urban interface fires, according to UC Cooperative Extension wildfire specialist Max Moritz.
"In these environments, as we've seen, it can be the homes themselves that are burning and spreading fire to other nearby homes. Managing vegetation can thus have relatively little effect on fire spread," Moritz said.
The federal government shutdown itself is having a major impact on wildfire prevention, reported Ezra David Romero on Capital Public Radio.
Typically, forest managers analyze their budgets and plan for the next fire season during the winter. But the government shutdown has suspended these efforts because the U.S. Forest Service - which has been furloughed since Dec. 22 - plays a big role.
Crews in Redwood National Park are “just sitting on their hands,” according to UC Cooperative Extension fire advisor Lenya Quinn-Davidson in Humboldt County, because they can't work on federal land during the shutdown. She said that workers were “excited to do more” on the heels of the state's worst fire season in history. “This is just taking the wind out of their sails."
The shutdown is also causing challenges for UCCE forestry specialist Bill Stewart. He's working on collaboration between the UC system and the Forest Service to streamline the cost of preventing wildfires. But the shutdown is making the five-year project, which has end-of-January deadlines, difficult to accomplish.
“Everything has come to a total stop,” Stewart said. “They are not even allowed to answer their emails. If this continues it may be hard to restart for this next season.”
Residents in fire-prone areas should take a critical look at the plants around their homes and remove any that can fuel a wildfire, wrote a team that includes UC Master Gardener Jessica Craven Goldstein for VC Reporter.
"The juniper hedge serving as an icon of suburban living might now be regarded as a danger to neighbors," they said.
The article included a novel idea for getting rid of unwanted plants. "I was able to remove several large plants with two-foot root balls by advertising them on Craigslist as 'free.'" emailed a Ventura resident. "I had a lot of responses and several people begging to be the chosen one."
The authors suggested that rural and suburban homeowners review the plant list created by FireSafe Marin for photos and details about plants that should be targeted for removal, and other websites - Sunset.com and CalFire - that list fire "safer" plants native to the West.
In addition to Craigslist, the story suggested Nextdoor.com for finding new homes for plants that are fire-prone or simply not suitable for their space. It also gave quick tips for successful transplanting, with details on managing irrigation, timing, shock and rootballs.
Shades of brown and grey cast over bricks, cement, remnants of metal roofs and steel beams from manufactured and modular homes, collapsed stucco walls, BBQs, shells of washers and driers, along with an occasional tea pot — that is what you can see in and amongst living, but singed Ponderosa pine and California black oak trees where the Camp Fire burned. How did California's most deadly fire happen and what might be done differently to ensure a better outcome? These are difficult questions that California will wrestle with for a long time to come.
Last week I was able to tour some of the burned area in Paradise and Magalia to evaluate why some homes survived and others did not. This gave me a chance to look at homes that survived largely on their material selection, design details, the owner's maintenance efforts, and not necessarily with the aid of a fire crew or resident that stayed. Many of the buildings that were burned were lost on the first day or two of the fire while emergency response was focused on evacuating the communities. It will take months to make sense of this mess and tragedy, but during my tour some conditions rang true to me.
Wildfire is not uniform
Not all fires are the same and not all houses experience the same type of fire. When you are looking at home losses and survivors, keep in mind that each home may not have had the same fire exposure. Some homes experienced significant ember exposure, while others ignited because their neighbor's home succumbed to fire and the heat of their neighbor's house caught their house on fire, while others were protected from the wind and its deadly embers. Paradise and Magalia have blocks and blocks of nothing but foundations, but amongst these bleak conditions are a few intact or partially damaged homes that have a story to tell.
California building code
Wood mulch and landscape plants
Our tour also confirmed that landscaping plants and wood mulch placed right next to the house creates vulnerability. While looking at the rubble of a home, it can be difficult to tell what happened; however, we saw several surviving houses with broken glass or otherwise damaged dual-pane windows that experienced heat exposures sufficient to crack glass in the windows, but the home still survived during these first two days when fire crews were rightly focused on community evacuation and not structure protection. For the houses that did not survive, we can interpret that in addition to the vulnerabilities in vents or a roof, heat can easily break glass in windows, especially if those windows are single pane, and can likely created a pathway for fire to enter the houses.
Home placement makes a difference
A home at the top of a canyon or gulch can easily be overwhelmed by wildfire by taking on additional heat as the fire approaches and being blasted with embers. This is not a new concept, but the homes in the broader Paradise region were especially vulnerable when they were located above these gulches and canyons. Enhanced vegetation management is highly recommended that includes a 5-foot non-combustible zone immediately adjacent to the home.
For me, thinking about Paradise in the abstraction was easy. Visiting it was different. The name says it all. After my visit I could understand why someone would choose Paradise or Magalia; the views are awesome, the air is clear, the forest and woodlands are amazing. I can only imagine that the community was (almost) perfect. Rebuilding a more resilient community will take considerable thought, effort, and some radical new ideas.
San Diego County officials want to approve construction of about 10,000 homes in areas largely labeled by CAL FIRE as posing a "very-high" fire hazard, reported Joshua Emerson Smith in the San Diego Union Tribune.
County supervisors said the subdivisions are badly needed and developers have laid out exhaustive fire-prevention blueprints. However, UC Cooperative Extension fire specialist Max Moritz said these building codes and other rules don't take into account whether a particular project should be built there at all.
“There are all these hazards that we use to guide our building and our zoning from floods to landslides, and fire is not one of them,” Moritz said.
“In the end, the taxpayer is left holding the bill for all this,” he said. “The developer may do a really good job at designing and convincing everybody that it's the right thing to do, but after they walk away, the public is left doing fuels maintenance for decades, and the public picks up the bill when there's a disaster.”