Wildfire Threat

Flame Wall

July 5, 2010 Kekaha fire Oweowe makai of Mamalahoa Highway. Photo courtesy of Yvonne Yarber Carter

Wildfires are an extreme threat to dry forests, and are increasing due to:

  • the spread of fire-prone invasive grasses and shrubs
  • increasing ignitions caused by humans, especially along roadsides
  • a warming, drying climate
Cordell Forest Grass Transitiion Crop

Invasive fountain grass encroaches upon old growth native dryland lama forest. Photo courtesy of Susan Cordell.

The following fact sheet from the Pacific Fire Exchange provides an excellent overview of wildfire in Hawaii:  PFX Fact Sheet: Wildfire in Hawaii

Fires and Ignition Points in North Kona – Note roadside ignition points.  Map Credit: Tanya Harrison

Wildfire Protection Tools

Creating and maintaining fuel breaks which are cleared of invasive fire-prone grasses and shrubs are the main tools being used to help protect dry forest areas from wildfire.  Some areas are also using managed grazing by cattle or goats to keep fuel breaks clear of fire-prone vegetation.  A tool being used on the mainland and being investigated for Hawaii are greenstrips composed of fire-resistant vegetation, as described in the following research paper:  Greenstrips in Hawaii – Can they be used to protect high value ecosystems from wildfire?

Cordell Mini Van Fire Crop

The effect of a fast burning fountain grass fire on native dry forest. Photo courtesy of Susan Cordell

Additional Information on Wildfires:

  • The Pacific Fire Exchange was formed in 2011 by several organizations to faciltate the sharing of fire science research, knowledge and best practices and enable collaboration among all stakeholders.  Numerous resources are available at their website:  pacificfireexchange.org
  • The Hawai‘i Wildfire Management Organization (HWMO) is a non-profit committed to helping the people and places of Hawaii be wildfire-safe and wildfire-ready.  Visit their website at:  www.hawaiiwildfire.org
  • The following Personal Wildland Fire Action Guide by HWMO is an excellent resource for protecting your home and property from wildfires:  Ready, Set, Go!
Cordell Burn Mamane Summit

A burned native dryland Mamane tree. Photo courtesy of Susan Cordell.

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