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Keyword: tree mortality

How to estimate tree mortality resulting from underburning

Publications Posted on: July 31, 2019
Prescribed burning beneath standing timber is widely used to accomplish objectives such as preparing land for reforestation, reducing fuels, improving livestock range, and modifying wildlife habitat. Such burning is usually guided by written plans that set forth general objectives and a firing pattern to accomplish them.

Spatial and temporal assessment of responder exposure to snag hazards in post-fire environments

Publications Posted on: May 16, 2019
Researchers and managers increasingly recognize enterprise risk management as critical to addressing contemporary fire management challenges. Quantitative wildfire risk assessments contribute by parsing and mapping potentially contradictory positive and negative fire effects. However, these assessments disregard risks to fire responders because they only address social and ecological resources and assets.

Inferring energy incident on sensors in low-intensity surface fires from remotely sensed radiation and using it to predict tree stem injury

Publications Posted on: April 09, 2019
Remotely sensed radiation, attractive for its spatial and temporal coverage, offers a means of inferring energy deposition in fires (e.g. on soils, fuels and tree stems) but coordinated remote and in situ (in-flame) measurements are lacking.

Impacts of the mountain pine beetle on sawmill operations, costs, and product values in Montana

Publications Posted on: November 20, 2018
Over the past 20 years, the mountain pine beetle (Dendroctonus ponderosae) has caused considerable tree mortality across the Rocky Mountain region of the western United States. Although the operational and cost impacts of dead timber are generally well known in the sawmill industry, there remains a need to better understand the impact of large-scale outbreaks on the industry at local and regional scales.

Condition of live fire-scarred ponderosa pine twenty-one years after removing partial cross-sections

Publications Posted on: October 05, 2018
Concern over the effects of removing fire-scarred partial cross-sections may limit sampling of live ponderosa pine to reconstruct fire history. We report mortality rates for ponderosa pine trees 20 to 21 years after removing fire-scarred partial cross-sections to reconstruct fire history.

Supplement to The User's Guide for The Stand Prognosis Model-version 5.0

Publications Posted on: August 01, 2018
Differences between Prognosis Model versions 4.0 and 5.0 are described. Additions to version 5.0 include an event monitor that schedules activities contingent on stand characteristics, a regeneration establishment model that predicts the structure of the regeneration stand following treatment, and a COVER model that predicts shrub development and total canopy cover.

Old tree responses to forest thinning

Projects Posted on: April 10, 2018
Long-term growth responses to stand density reduction treatments in mature pine forests of California

Fire-induced tree mortality

Projects Posted on: April 09, 2018
Mortality reconsidered: Testing and extending models of fire–induced tree mortality across the United States.

California tree mortality

Projects Posted on: April 09, 2018
Changes in fuel loading and conifer mortality risk factors due to bark beetles and drought in California.

Tree mortality estimates and species distribution probabilities in southeastern United States forests

Publications Posted on: October 05, 2017
Stresses to trees under a changing climate can lead to changes in forest tree survival, mortality and distribution.  For instance, a study examining the effects of human-induced climate change on forest biodiversity by Hansen and others (2001) predicted a 32% reduction in loblolly–shortleaf pine habitat across the eastern United States.  However, they also predicted an average increase in area of 34% for oak-hickory forests and a 290% increase

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