Fire Effects Following the Egley Fire Complex (OR, USA) in a Dry Ponderosa Pine Forest
Fire Effects Following the Egley Fire Complex (OR, USA) in a Dry Ponderosa Pine Forest

Author: Jessie M. Dodge

Publisher:

Published: 2019

Total Pages: 152

ISBN-13: 9781085577861

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Land managers have been using mechanical treatments to reduce fuels in ponderosa pine (Pinus ponderosa) forests to mitigate high severity fire effects. Before the 2007 Egley Fire Complex, mechanical thinning, slash and pile burns, and understory burns were implemented as fuel reduction treatments in the dry ponderosa pine-dominated Malheur National Forest in eastern Oregon. To compare post-fire vegetation recovery between mechanical treatments and untreated control areas, 35 treated and untreated paired plots were sampled in 2016. Sites were stratified by elevation, aspect, and the remotely sensed burn severity gradient represented by the delta Normalized Burn Ratio (dNBR). Post-fire vegetation recovery was assessed at the 35 paired field sites by measuring tree density, seedling regeneration, understory plant response, and fuel loads. The intent of this study was to document to what extent tree density, seedling regeneration, understory plant community composition, and fuels change across the burn severity gradient and to quantify to what extent pre-fire fuel treatments affect burn severity and long term (9 years) vegetation recovery. Estimated site recovery time and other implications for management of dry coniferous forests are discussed.

Pre-fire Treatments Have Persistent Effects on Post-fire Plant Communities
Pre-fire Treatments Have Persistent Effects on Post-fire Plant Communities

Author: Kristen L. Shive

Publisher:

Published: 2012

Total Pages: 112

ISBN-13:

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"Wildfires characterized by large areas of high severity are increasingly occurring in ponderosa pine (Pinus ponderosa P. & C. Lawson) forests of the Southwest to extents that are out of the natural range of variability. Managers are now routinely applying thinning and/or burning treatments to reduce fire severity. To investigate the effects of pre-fire treatments and fire severity on post-fire vegetation recovery, we re-measured established plots on the 2002Rodeo-Chediski Fire on the White Mountain Apache Tribal (WMAT) lands eight years post-fire and the Apache-Sitgreaves National Forest (ASNF) nine years post-fire. On the WMAT lands we re-measured 70 plots stratified by fire severity (high, low) and pre-fire treatment (untreated, and cut/burned). We found significantly higher overall plant cover, exotic forb cover (although this was still low,

Fire Ecology of Pacific Northwest Forests
Fire Ecology of Pacific Northwest Forests

Author: James K Agee

Publisher:

Published: 1993-11

Total Pages: 520

ISBN-13:

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A leading expert in the emerging field of fire ecology, James Agee analyzes the ecological role of fire in the creation and maintenance of the natural forests common to most of the western U.S. In addition to examining fire from an ecological perspective, he provides insight into its historical and cultural aspects, and also touches on some of the political issues that influence the use of fire. Although the focus of chapters on the ecology of specific forest zones is on the Pacific Northwest, much of the book addresses issues that are applicable to other regions. Illustrations, tables, index.