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article imageCalifornia fires: Here we go again

Posted Jul 6, 2008 by  Paul Wallis (Wanderlaugh) in Environment | 4 comments | 428 views
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The Season of Fire has hit California yet again. For years now the state has been battered by huge, destructive, fires, and this season is already getting people worried. In fact, some Californians are starting to think it’s fire season all year round.
It’s taking national resources to provide enough firefighters to deal with the California fires.

The LA Times has a large feature on the current fires, and it’s much like last year’s horrendous fires:

Firefighters who have converged on California from throughout the nation face an ominous weather forecast as a large swath of the state is expected to be enveloped in severe heat beginning Monday. Forecasters predict erratic winds and the possibility of more fire-igniting lightning strikes.

…In Big Sur, fire commanders are bracing for the heat by asking for more firefighters, especially because some crews have been on the fire lines virtually nonstop for weeks.


The Big Sur fire has been uncrackable, so far. It’s also been diverting resources away from other fires, stretching the services to capacity. It’s destroyed 71,000 acres and is threatening 1800 homes.

A huge effort, (which I can say was more than was used in the Australian fires in Sydney in 1994, which ringed the city), got a major blaze at Goleta partially contained.

According to the LA Times, that effort took: nearly 2,200 firefighters, 19 helicopters and six air tankers, which is massive capacity by any international firefighting standards, on that one fire.

Against that, Governor Schwarznegger commented that 1700 fires had ignited in 14 days.

The score so far:

At the peak of the fire rampage that began June 20, some 1,783 fires burned, many ignited by lightning. So far, more than 510,000 acres from Nevada to the Pacific Ocean have burned, destroying 34 homes and 32 outbuildings, fire officials said.


On the positive side, the lack of fatalities and the preservation of homes is bordering on miraculous, for such huge fires.

From the look of the Big Sur photos that come with the LA Times article, a few things are obvious:

The fire is moving very fast, and very hot.

There are scorched trees, which have clearly received a lot of heat, so hot they look like alligator skins, but there’s green foliage overhead, and around them. That’s quite unusual, it’s like they’ve been hit with a flamethrower, not a forest fire. Some areas have been scorched bare, while others are basically just singed.

Another worrying sign: Pictures of long dry grass, near conifers. That’s not good. Grass fires burn very hot, stay close to the ground, and can move very fast. Apparently there’s plenty of fuel for these fires.

Any Californians take note: In Australia we remove as much fuel from the forest floor as we can, by backburning, firing the fuel in the off season to reduce the fire’s food supply.

If you’ve got any dry fuel around your area, get rid of it.

And good luck.
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  • avatar Posted Jul 6, 2008 by  Sheba
    #1
    I keep wondering how come they still have forests left to burn - with all them fires year after year, you'd think they're out of woods (much less forests) by now, no?
  • avatar Posted Jul 6, 2008 by  lensman67
    #2
    @ Sheba
    I keep wondering how come they still have forests left to burn - with all them fires year after year, you'd think they're out of woods (much less forests) by now, no?

    Most of the native plants in California are designed to burn in order to germinate their seeds. The main native species of tree, the redwood, is very fire resistant and actually thrives when there are fires that help burn away any insect infestations or rot in their trunks.

    These trees have experienced hundreds, and in many cases thousands of fires in the centuries that they have been standing. Fire burns away the non native plants as well as the insect and human parasites that fill the hills. Fire is the forest's friend.

    Without fire there would be no forest in California.
  • avatar Posted Jul 6, 2008 by  lensman67
    #3
    Any Californians take note: In Australia we remove as much fuel from the forest floor as we can, by backburning, firing the fuel in the off season to reduce the fire’s food supply.


    For centuries the Native Americans removed the fuel from the forest by the simple expedient of burning them, which helped insure the health of the forest and improved the hunting.

    The chief culprit in the new California fires is the Australian eucalyptus tree (what we call the "napalm tree") which has been imported into the area because it grows quickly and looks "pretty." It burns like a torch and when it isn't burning it drops poisons all over the ground around its roots that adversely affect the local wildlife.
  • avatar Posted Jul 6, 2008 by  Paul Wallis (Wanderlaugh)
    #4
    @ lensman67
    For centuries the Native Americans removed the fuel from the forest by the simple expedient of burning them, which helped insure the health of the forest and improved the hunting.

    The chief culprit in the new California fires is the Australian eucalyptus tree (what we call the "napalm tree") which has been imported into the area because it grows quickly and looks "pretty." It burns like a torch and when it isn't burning it drops poisons all over the ground around its roots that adversely affect the local wildlife.


    Yeah, they're actually explosive, good name. The important thing is to make sure they're no closer than about 20 metres from a building. They drop branches and leaves to keep other plants away from their root system. California would be paradise for them, and they can colonize areas which would otherwise be treeless, because some of them have huge tap roots (40 feet).

    They're also pyrogenes. I've seen an area after a bushfire where the pines and gums created a borderline between them, nothing but gums on one side, nothing but pines on the other.

    Tell your neighbors to avoid planting anywhere they don't want an atomic bomb going off, and keep them separated. A few of them together produces the Wall of Fire effect. Radiant heat has been measured at 800 degrees, at a range of about 20 metres. They produce groves pretty fast, too. They're better grown on flat or low ground, so they don't contribute to fires climbing hills.

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