In the 1980's, the term "defensible space" was coined
to describe vegetation management practices aimed at reducing the
wildfire threat to homes. This means thinning, cutting, mulching
or removing dead, dying and overgrown vegetation. Defensible Space
Solutions specializes in mastication of vegetation using a rubber-tracked
loader with a masticating drum head. Mastication means chewing or
mulching. We masticate vegetation creating mulch which is left on-site
to protect the soil from erosion and weeds.
For
homes located in the mountains and range lands of northern California
and western Nevada wildfire is a continual threat based upon climate,
topography and vegetation. The “arid” west experiences
regular periods of drought, which depletes the moisture content
of vegetation and makes plants more susceptible to ignition. Throughout
much of our region the combination of climate and topography cause
roughly 50% of wildfire ignitions by lightning strikes; often during
“dry”, or no-rain, lightning. Mountain topography creates
wind conditions and air pressure differentials which lead to severe
wind patterns that further reduce vegetation moisture and exacerbate
actively engaged wildfires. The growing urbanization and recreation
use of the wildland urban interface put human and natural resources
at greater risk from wildfire. Creating defensible space allows
homeowners to live more safely in fire prone areas while protecting
the natural areas and wildlife we love.
Recent
wildfire history
In the last 10 years, wildfires in the west have been larger, more
frequent and more destructive. Over 5 million acres of range and forest
have burned in Nevada since 1999. That year Nevada experienced a record
wildfire season when 1.65 million acres burned. In response to those
fires a collaborative group led by the University of Nevada Cooperative
Extension formed the Nevada Fire Safe Council to inform and assist
homeowners with defensible space. Nevada’s second most destructive
fire season was in 2006 when 1.3 million acres burned. Since 1999
California has witnessed 8 of its largest fires of record burning
over 1.1 million acres, destroying 7,866 structures and causing 24
deaths.The
year 2008 was a huge fire year in California with the state having
2,095 separate fires which burned over 2.1 million acres. The Angora
fire burned in South Lake Tahoe in June 2007. It was the most devastating
fire in recent times in the Tahoe Basin. It burned for 9 days and
destroyed 254 homes.
Besides
tragic human losses wildfires devastate wildlife and native plant
communities. The loss of native vegetation allows the spread of
invasive plant species, like cheat grass, which perpetuates the
wildfire cycle by proliferation of early-season, fine fuels. Fire
seasons can be severe after dry winters and wet winters. Dry winters
produce droughty conditions earlier and move up the fire season.
Wet winters produce more weed and grass species, finer “ladder”
fuels, which are easier to ignite and can carry ground fires up
into larger plant species.
Creating
defensible space can reduce the likelihood of ignitions, reduce
the spread of wildfire to structures and reduce impacts to native
plants and animals.