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Keyword: ponderosa pine forest

Soil organic matter in a ponderosa pine forest with varying seasons and intervals of prescribed burn

Documents and Media Posted on: October 03, 2018
Prescribed burning is used to reduce fuel loads and return ponderosa pine forests of the Western U.S. to their historical structure and function. The impact of prescribed burning on soil is dependent on fire severity which is largely managed by burning in the fall or the spring; frequency of fire will also regulate long-term fire impacts.Document Type: Other Documents

Effects of selection harvest and prescribed fire on the soil nitrogen status of ponderosa pine forests

Documents and Media Posted on: October 03, 2018
One hundred years of timber harvest and reduced fire frequency have resulted in the conversion of once open stands of ponderosa pine (Pinus ponderosa) forests to dense forests dominated by Douglas-fir (Pseudotsuga menziesii). Selection harvest and harvest with prescribed fire have been identified as possible tools to restore ponderosa pine stands to presettlement stand structures.Document Type: Other Documents

The legacy of a severe wildfire on stream nitrogen and carbon in headwater catchments

Publications Posted on: September 25, 2018
Large, high-severity wildfires alter the physical and biological conditions that determine how catchments retain and release nutrients and regulate streamwater quality. The short-term water quality impacts of severe wildfire are often dramatic, but the longer-term responses may better reflect terrestrial and aquatic ecosystem recovery.

Spatial distribution of ponderosa pine seedlings along environmental gradients within burned areas in the Black Hills, South Dakota

Publications Posted on: May 12, 2016
In 2000, the Jasper fire in the Black Hills, SD, created a mosaic of burned and unburned patches of different sizes within the contiguous ponderosa pine forest. To study the spatial regeneration of ponderosa pine seedlings and the ecological gradients existing between burned and unburned areas two years after fire, we used a transect approach.

Density of large snags and logs in northern Arizona mixed-conifer and ponderosa pine forests

Publications Posted on: October 07, 2015
Large snags and logs provide important biological legacies and resources for native wildlife, yet data on populations of large snags and logs and factors influencing those populations are sparse. We monitored populations of large snags and logs in mixed-conifer and ponderosa pine (Pinus ponderosa) forests in northern Arizona from 1997 through 2012.

Rapid increase in log populations in drought-stressed mixed-conifer and ponderosa pine forests in northern Arizona

Publications Posted on: May 08, 2012
Down logs provide important ecosystem services in forests and affect surface fuel loads and fire behavior. Amounts and kinds of logs are influenced by factors such as forest type, disturbance regime, forest man-agement, and climate.

Snowpack dynamics in an opening and a thinned stand in a ponderosa pine forest

Publications Posted on: September 13, 2010
Snow that accumulates in high-elevation forested watersheds is an important source of water for downstream municipalities, industries, and agricultural activities. Streamflow and water storage impoundments in the drier regions of the western United States depend on snowmelt.

Coarse woody debris assay in northern Arizona mixed-conifer and ponderosa pine forests

Publications Posted on: June 11, 2010
Coarse woody debris (CWD) provides important ecosystem services in forests and affects fire behavior, yet information on amounts and types of CWD typically is limited. To provide such information, we sampled logs and stumps in mixed-conifer and ponderosa pine (Pinus ponderosa) forests in north-central Arizona. Spatial variability was prominent for all CWD parameters.

Flammulated, boreal, and great gray owls in the United States: A technical conservation assessment

Publications Posted on: October 09, 2007
Flammulated (Otus flammeolus), boreal (Aegolius funereus), and great gray (Strix nebulosa) owls occur over a broad portion of North America and each is designated as a "sensitive species" in four or more USDA Forest Service regions.


Publications Posted on: September 26, 2007
This publication displays and interprets changes in a managed ponderosa pine forest in western Montana based on a series of repeat photographs taken between 1909 and 1997 at 13 camera points.