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Keyword: mechanical treatments

Root diseases in coniferous forests of the Inland West: potential implications of fuels treatments

Publications Posted on: May 12, 2016
After nearly 100 years of fire exclusion, introduced pests, and selective harvesting, a change in forest composition has occurred in many Inland West forests of North America. This change in forest structure has frequently been accompanied by increases in root diseases and/or an unprecedented buildup of fuels. Consequently, many forest managers are implementing plans for fuels treatments to lower the risk of severe wildfires.

Fire and fire-surrogate study: Soil moisture availability

Projects Posted on: December 15, 2015
Forests in the western United States are more dense and have more down fuels now than under historic conditions, mostly due to anthropogenic influences such as grazing and fire-suppression. Managers have recognized this problem and have acted to reduce stem density and fuels by thinning, burning, and/or fuel treatments. This Fire and Fire-Surrogate (FFS) study evaluates prescribed fire, thinning, and various mechanical treatment methods for treating, removing, or using woody biomass.

Resilience and resistance of sagebrush ecosystems: Implications for state and transition models and management treatments

Publications Posted on: July 14, 2015
In sagebrush ecosystems invasion of annual exotics and expansion of pinon (Pinus monophylla Torr. and Frem.) and juniper (Juniperus occidentalis Hook., J. osteosperma [Torr.] Little) are altering fire regimes and resulting in large-scale ecosystem transformations.

Understory cover responses to pinon-juniper treatments across tree dominance gradients in the Great Basin

Publications Posted on: July 08, 2015
Pinon (Pinus spp.) and juniper (Juniperus spp.) trees are reduced to restore native vegetation and avoid severe fires where they have expanded into sagebrush (Artemisia tridentata Nutt.) communities. However, what phase of tree infilling should treatments target to retain desirable understory cover and avoid weed dominance?

Pinon-juniper reduction increases soil water availability of the resource growth pool

Publications Posted on: July 08, 2015
Managers reduce piñon (Pinus spp.) and juniper (Juniperus spp.) trees that are encroaching on sagebrush (Artemisia spp.) communities to lower fuel loads and increase cover of desirable understory species. All plant species in these communities depend on soil water held at > −1.5 MPa matric potential in the upper 0.3 m of soil for nutrient diffusion to roots and major growth in spring (resource growth pool).

Fuel accumulation and forest structure change following hazardous fuel reduction treatments throughout California

Publications Posted on: July 08, 2015
Altered fuel conditions coupled with changing climate have disrupted fire regimes of forests historically characterised by high-frequency and low-to-moderate-severity fire. Managers use fuel treatments to abate undesirable fire behaviour and effects. Short-term effectiveness of fuel treatments to alter fire behaviour and effects is well documented; however, long-term effectiveness is not well known.

Response of Fuelbed Characteristics to Restoration Treatments in Pinyon-Juniper-Encroached Shrublands on the Shivwits Plateau, Arizona

Publications Posted on: February 02, 2007
The recent encroachment of piñon (Pinus edulis) and juniper trees (Juniperus osteosperma) into historically shrub- and grass-dominated landscapes has caused major changes in ecosystem structure and function, including dramatic changes in fuel structure and fire regimes.