Study: Protected Forests on Public Land Burn Less Severely Than Logged Areas
For Immediate Release, October 26, 2016
Contacts: Curtis Bradley, Center for Biological Diversity, (520) 345-5710, cbradley@biologicaldiversity.org | Dr. Chad Hanson, John Muir Project of Earth Island Institute, (530) 273-9290, cthanson1@gmail.com | Dr. Dominick A. DellaSala, Geos Institute, (541) 482-4459 x 302 or (541) 621-7223 cell, dominick@geosinstitute.org
TUCSON, Ariz.— A new study published in the scientific journal Ecosphere finds that public forests that are protected from logging burn less severely than logged forests. The study is the most comprehensive investigation of its kind, spanning more than 23 million acres and examining three decades’ of forest fire data in the West. Among the major findings were that areas undisturbed by logging experienced significantly less intensive fire compared with areas that have been logged.
The findings come as many federal land managers and members of Congress claim that more logging will reduce wildfires. Several bills have been introduced in Congress to increase logging on vast areas of public land; these have typically been presented under the guise of addressing forest fire concerns, but eliminate most analysis of environmental impacts and reduce environmental protections.
“We were surprised to see how significant the differences were between protected areas managed for biodiversity and unprotected areas, which our data show burned more severely,” said lead author Curtis Bradley, with the Center for Biological Diversity.
For this study scientists set out to determine whether reduced forest protections and increased logging are associated with lower fire severity. They analyzed fires that burned in pine and mixed-conifer forests starting about 30 years ago, at the earliest point for which comprehensive data were available, to compare where and how fires burned using satellite imagery and maps from the U.S. Geological Survey’s “protected areas database.” The results demonstrated that fires burned relatively cooler in areas managed for biodiversity (Gap 1 in figure below), including national parks and wilderness areas where fires are generally allowed to proceed naturally versus areas managed for multiple use (Gap 3) and areas with little to no mandate for protection (Gap 4) such as private forest lands managed for timber production.
The study focused on forests with relatively frequent fire regimes, ponderosa pine and mixed-conifer forest types; used multiple statistical models; and accounted for effects of climate, topography and regional differences to ensure the findings were robust.
“The belief that restrictions on logging have increased fire severity did not bear out in the study,” said Dr. Chad Hanson, an ecologist with the John Muir Project. “In fact, the findings suggest the opposite. The most intense fires are occurring on private forest lands, while lands with little to no logging experience fires with relatively lower intensity.”
“Our findings demonstrate that increased logging may actually increase fire severity,” said Dr. Dominick A. DellaSala, chief scientist of Geos Institute. “Instead, decision-makers concerned about fire should target proven fire-risk reduction measures nearest homes and keep firefighters out of harm’s way by focusing fire suppression actions near towns, not in the back country.”
The authors noted that even in protected forests they found an appropriate mix of low, moderate and high-intensity fire, which is ecologically beneficial since many wildlife species depend on post-fire habitat, especially “snag forest habitat” created by patches of high-intensity fire. Many studies indicate that significant damage to wildlife habitat can result from logging of both unburned mature forests and snag-forest habitat.
Location of fires >1,000 acres in pine and mixed-conifer forests with relatively frequent fire regimes in ecoregions of western United States from 1984 to 2014.
Forests with the highest level of protection (GAP 1 and 2) had the lowest levels of high severity fire — results are shown for 3 statistical models examined.
The Center for Biological Diversity (biologicaldiversity.org) is a national, nonprofit conservation organization with more than 1.1 million members and online activists dedicated to the protection of endangered species and wild places.
The John Muir Project of Earth Island Institute (www.johnmuirproject.org) is a nonprofit forest conservation and research organization focusing on National Forests of the U.S.
Geos Institute (www.geosinstitute.org), a science-based nonprofit in Ashland, Oregon, works on climate change solutions for forests, water, and people. It’s Forest Legacies program works internationally on forests and climate change.
Samantha Medlock is President of Climate Risk Advisors, helping communities and organizations advance equity, sustainability, and resilience. Her career began chasing floods as a local official in Texas Flash Flood Alley—a hands-on experience that still shapes her approach to climate and disaster risk management.
Arsum is the Senior Adaptation and Coastal Resilience Specialist for the National Wildlife Federation’s Southcentral Region. In this role, she advances climate adaptation efforts, with a focus on nature-based approaches to address the impacts of climate change and extreme events across the Gulf region. She has authored and co-authored numerous publications on climate impact assessments and adaptation solutions. Additionally, she regularly participates in state-based coastal resilience and hazard mitigation planning across the Gulf, collaborating with regional and local stakeholders.
Frank is the former President of the Reinsurance Association of America. Frank currently serves on the Advisory Board of the OECD’s International Network for the Financial Management of Large-Scale Disasters, the RAND Center on Catastrophic Risk Management and Compensation, and the University of Cincinnati’s Carl H. Lindner III Center for Insurance and Risk Management Advisory Board.
Jim is a multilingual world traveler. Based in Bavaria during the 1970s, Jim spent most of this period in India, Afghanistan and Nepal, where he founded and operated a charitable medical clinic serving Tibetan Refugees. He settled in Oregon in 1983 on a forested ranch in the Umpqua National Forest.
Dr. Micah Hahn is an Associate Professor of Environmental Health in the Institute for Circumpolar Health Studies at the University of Alaska-Anchorage. She received her joint PhD in Epidemiology / Environment and Resources from the University of Wisconsin-Madison and her MPH in Global Environmental Health from Emory University. Subsequently, she was a postdoctoral fellow for the CDC Climate and Health Program, and in this position worked collaboratively with the CDC Division of Vector-borne Diseases and the National Center for Atmospheric Research. Her research focuses on understanding the health impacts of climate change and working with communities to develop locally-relevant adaptation and resilience-building strategies. Dr. Hahn is also on the Management Team of the Alaska Climate Adaptation Science Center.
Michael is a former Founding Principal of Resilient Cities Catalyst, a global non-profit helping cities and their partners tackle their toughest challenges. He is currently the Executive Director of Climate Resilience Academy at the University of Miami.
Dr. Quintus Jett is a consultant, educator, and strategist for public causes. He has a doctorate in Organizations & Management from Stanford University, and a two-decade faculty career which spans schools, departments, and programs of business, engineering, liberal studies, divinity, and public and nonprofit management. Following Hurricane Katrina in 2005, Dr. Jett launched a volunteer project in New Orleans, which enlisted residents, students from over a dozen colleges and universities, and hundreds of others to field map the city’s Gentilly district, Lower Ninth Ward, and New Orleans East. Dr. Jett is an innovator in higher education, bridging the divide between academic research and the other priorities of the modern university, including student access and diversity, community engagement, and providing foundations for life-long learning in today’s rapidly changing world.
Scott is Monfort Professor of Atmospheric Science at Colorado State University. He has written about 100 publications in the peer-reviewed climate literature, is a former editor of the Journal of Climate, and served for five years as founding Science Chair of the North American Carbon Program.
Linda has many years of experience in disaster preparedness and resilience. She has been an elected official on the Linn County Iowa Board of Supervisors, Chair of the Metropolitan Planning Organization, the East Central Iowa Council of Governments, the statewide Mental Health Developmental Disability and the Linn County Board of Health. Langston is a former president of the National Association of Counties (2013-2014).
Ken works with families and organizations as a mediator, organizational consultant, trainer and facilitator. Along with his passion for helping people prepare for and reduce climate change, Ken also volunteers as a mediator through Mediation Works and is passionate about supporting youth through mentoring with Boys to Men of Southern Oregon.
Matthew is a retired high school teacher who was once honored as Oregon High School Social Studies Teacher of the Year. Before his teaching career he was in the restaurant business in Portland. He is also a lawyer who has been a member of the Oregon State Bar Association since 1980.
Andrea is the Resilience Policy Advisor for the North Carolina Office of Recovery and Resiliency. She works across state agencies and with local governments to increase the state’s resilience to the impacts of climate change.