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Keyword: Hayman Fire

Social and economic issues of the Hayman Fire

Publications Posted on: September 27, 2007
On June 26, 2002, U.S. Representative Mark Udall wrote the US Forest Service Chief, requesting that the Forest Service conduct an analysis of the Hayman Fire. In response to the Congressman’s letter, five teams were established in August, 2002 to analyze various aspects of the Hayman Fire experience. This report describes the Hayman Fire analysis work conducted by the social/economic team and presents our findings

Postfire rehabilitation of the Hayman Fire

Publications Posted on: September 27, 2007
Our team was asked to analyze and comment on the existing knowledge and science related to postfire rehabilitation treatments, with particular emphasis on the known effectiveness of these treatments. The general effects of fire on Western forested landscapes are well documented (Agee 1993; DeBano and others 1998; Kozlowski and Ahlgren 1974) and have been thoroughly discussed in other chapters of this report.

Home destruction within the Hayman Fire perimeter

Publications Posted on: September 27, 2007
The Hayman Fire report on home destruction examines the following four questions: 1. How many homes were destroyed out of the total number of homes within the Hayman Fire perimeter? 2. What was the relative wildland fire intensity associated with the destroyed homes? 3. What was the categorical cause of home ignition suggested by the associated wildland fire intensity adjacent to the home site? 4.

Ecological effects of the Hayman Fire - Part 8: Effects on species of concern

Publications Posted on: September 27, 2007
Conclusions about the effects of fire on species of concern will depend on the temporal and spatial scales of analysis. Populations of some species may decline in abundance immediately postfire due to alteration or destruction of habitat, but over larger spatial and temporal scales, fire contributes to a shifting mosaic of habitat conditions across the landscape.

Ecological effects of the Hayman Fire - Part 7: Key invasive nonnative plants

Publications Posted on: September 27, 2007
Invasive, nonnative plant species pose one of the greatest potential threats to long-term ecosystem integrity in the area burned by the 2002 Hayman Fire. In other ecosystems, nonnative invaders have been shown to cause decline of native plant species and pollinators, as well as adverse changes in fire regimes, nutrient cycling, and hydrology.

Ecological effects of the Hayman Fire - Part 6: Fire-induced changes in aquatic ecosystems

Publications Posted on: September 27, 2007
The watersheds within the Hayman Fire area represent a mosaic of ephemeral, intermittent, and perennial streams of various sizes. Given the intensity of the fire, the effects on these streams will often vary from mild to severe.

Ecological effects of the Hayman Fire - Part 5: Historical aquatic systems

Publications Posted on: September 27, 2007
Although there is little historical information on the aquatic ecosystems within the perimeter of the Hayman Fire, we have developed a probable description of them based on available sources as well as from literature and reports on other Colorado Front Range systems, particularly the recent scholarly work of Wohl (2001).

Ecological effects of the Hayman Fire - Part 4: Forest succession

Publications Posted on: September 27, 2007
The ecosystems within the area that burned in the Hayman Fire have a long history of fire (see part 1 of this chapter). It follows, therefore, that all of the native species and populations in this area probably have one or more mechanisms for enduring fire or becoming reestablished after fire and that no native species is likely to become extinct as a result of the direct effects of the Hayman Fire.

Ecological effects of the Hayman Fire - Part 3: Soil properties, erosion, and implications for rehabilitation and aquatic ecosystems

Publications Posted on: September 27, 2007
This team was asked to address three questions regarding soil properties, erosion and sedimentation, and how aquatic and terrestrial ecosystems have responded or could respond to various land management options. We have used soil survey maps, burn severity maps, and digital elevation model (DEM) maps as primary map data.

Ecological effects of the Hayman Fire - Part 2: Historical (pre-1860) and current (1860-2002) forest and landscape structure

Publications Posted on: September 27, 2007
The term “landscape structure” refers to the configuration of vegetation and other land features over a large land area (usually an extent of many square kilometers). A landscape can be regarded as a mosaic composed of patches of different kinds -- for example, different forest types, landforms, or human-built structures such as roads.

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