California Tree Mortality Viewer

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Five long years of drought, combined with the increased infestation of native bark beetles as a result of the drought, have contributed to the death of millions of trees on federal, state, and private lands across California. As a result, California is now facing the worst epidemic of tree mortality in modern history. This viewer is brought to you by a subgroup of the Tree Mortality Task Force (TMTF). The TMTF is comprised of multiple agencies, entities and stakeholders working together to address the Tree Mortality crisis. The viewer includes various layers related to the tree mortality problem, including ADS data (depicting areas of dead trees), High Hazard Zones, tree removal projects, and more.

129 Million Dead Trees in California

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,Welcome to our Story Map about California Tree Mortality.,Since 2010 over 127 million trees have died due to drought and bark beetles. The hardest hit region is the Southern and Central Sierra including the counties of Amador, Calaveras, El Dorado, Fresno, Kern, Madera, Mariposa, Placer, Tulare, and Tuolumne where 96.4 million dead trees are located.,,This Story Map will take you through the history of the tree mortality epidemic and present solutions for affected landowners.,Publish Date: Version I; February 2018,

129 Million Dead Trees in California

공공데이터포털

,Welcome to our Story Map about California Tree Mortality.,Since 2010 over 127 million trees have died due to drought and bark beetles. The hardest hit region is the Southern and Central Sierra including the counties of Amador, Calaveras, El Dorado, Fresno, Kern, Madera, Mariposa, Placer, Tulare, and Tuolumne where 96.4 million dead trees are located.,,This Story Map will take you through the history of the tree mortality epidemic and present solutions for affected landowners.,Publish Date: Version I; February 2018,

Tree mortality in Sequoia National Park from 2004 to 2007 and during severe drought in 2014 to 2017

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These data describe tree mortality and the factors associated with tree mortality for a variety of plots in Sequoia National Park. Most of the data were collected between 2014 and 2017 (during an extremely severe drought), along with some comparison data from 2004 to 2007.

Tree mortality in Sequoia National Park from 2004 to 2007 and during severe drought in 2014 to 2017

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These data describe tree mortality and the factors associated with tree mortality for a variety of plots in Sequoia National Park. Most of the data were collected between 2014 and 2017 (during an extremely severe drought), along with some comparison data from 2004 to 2007.

California High Hazard Zones (Tier 1)

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On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in wildfire and/or falling trees and threaten people and property in these areas. Once identified, these areas will be prioritized for removal of dead and dying trees that present a threat to public safety.,

California High Hazard Zones (Tier 1)

공공데이터포털

On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in wildfire and/or falling trees and threaten people and property in these areas. Once identified, these areas will be prioritized for removal of dead and dying trees that present a threat to public safety.,

California High Hazard Zones (Tier 2)

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On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in wildfire and/or falling trees and threaten people and property in these areas. Once identified, these areas will be prioritized for removal of dead and dying trees that present a threat to public safety.,

California High Hazard Zones (Tier 2)

공공데이터포털

On October 30, 2015 Governor Brown issued an emergency declaration requiring public agencies to identify areas of tree mortality that hold the greatest potential to result in wildfire and/or falling trees and threaten people and property in these areas. Once identified, these areas will be prioritized for removal of dead and dying trees that present a threat to public safety.,

Tree Mortality from Fires and Bark Beetles at 1-km Resolution, Western USA, 2003-2012

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This dataset provides annual estimates of tree mortality due to fires and bark beetles from 2003 to 2012 on forestland in the continental western United States. Tree mortality was estimated at 1-km spatial resolution by combining tree aboveground carbon (AGC) and disturbance datasets derived largely from remote sensing. Tree mortality is expressed as the amount of AGC stored in trees killed by disturbance (Mg carbon per km2). The dataset also includes annual uncertainty maps that were generated using a Monte Carlo approach in which tree biomass, biomass carbon content, and disturbance severity were iteratively varied by their uncertainty.