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Keyword: Fort Valley Experimental Forest

Historical provenance study at Fort Valley Experimental Forest

Projects Posted on: August 24, 2016
Forest management will protect genetic integrity of tree species only if their genetic diversity is understood and considered in decision-making. Genetic knowledge is particularly important for species such as ponderosa pine that are distributed across wide geographic distances and types of climates. Researchers revisit an assisted migration study in an Arizona ponderosa pine forest after 100 years to assess genetic diversity, adaptation patterns, and improve forest management of ponderosa pine.

Soil microbial community resilience with tree thinning in a 40-year-old experimental ponderosa pine forest

Publications Posted on: April 21, 2015
Establishment of native grasses is a primary objective of restoration in Pinus ponderosa var. scopulorum (P. & C. Lawson) forests in the southwestern United States. Interactions among native grasses and soil microorganisms generate feedbacks that influence the achievement of this objective. We examined soil chemical properties and communities of plants and soil microorganisms in clear-cuts and P.

Research on climate impacts to forests began early at Fort Valley Experimental Forest

Publications Posted on: April 04, 2012
Even before Arizona was a state, government scientists walked and rode across its broad, open landscapes from nearly sea level to over 12,000 feet of elevation, observing its diverse vegetation and climate. In 1889, biologist C. Hart Merriam traversed northern Arizona and found six of the seven world life zones he would later describe by latitude and elevation.

Methods of cutting ponderosa pine in the Southwest - Establishment report: Even-aged yield study, Plot 11

Publications Posted on: March 14, 2012
The objectie of the study is to obtain information on the growth and yield of even-aged stands of different stocking levels. The plot will also serve as the start of a detailed growing stock study for the ponderosa pine region.

Roots of research: Raphael Zon and the origins of forest experiment stations

Publications Posted on: March 26, 2009
The 1908 founding of the first American forest experiment station in Fort Valley, Arizona was an event of considerable historical significance. The Fort Valley station was the linchpin of forester Raphael Zon's bold plan to create the first program of organized research in U.S. Forest Service history. It also represented the beginning of a fruitful marriage between German and American methods of forestry.

Effects of ecological restoration alternative treatments on nonnative plant species establishment

Publications Posted on: March 26, 2009
Disturbances generated by forest restoration treatments have the potential for enhancing the establishment of nonnative species thereby impeding long-term native plant recovery.

Vascular plant checklist of the Chimney Spring and Limestone Flats Prescribed Burning Study Areas within ponderosa pine experimental forests in northern Arizona

Publications Posted on: March 26, 2009
This paper presents a vascular plant species list for two sites that are part of a long-term study exploring the effects of varying fire intervals on forest characteristics including the abundance and composition of understory vegetation. The Chimney Spring study area is on the Fort Valley Experimental Forest near Flagstaff, AZ, and the Limestone Flats study area is on the Long Valley Experimental Forest, 90 km (56 mi) southeast of Flagstaff.

Fort Valley's early scientists: A legacy of distinction

Publications Posted on: March 26, 2009
When the Riordan brothers of Flagstaff, Arizona, asked Gifford Pinchot to determine why there was a deficit in ponderosa pine seedlings, neither party understood the historical significance of what they were setting in motion for the field of forest research.

93 Years of stand density and land-use legacy research at the Coulter Ranch Study Site

Publications Posted on: March 26, 2009
In 1913, the Fort Valley Experimental Forest initiated an unprecedented case-study experiment to determine the effects of harvesting methods on tree regeneration and growth on a ponderosa pine-Gambel oak forest at Coulter Ranch in northern Arizona. The harvesting methods examined were seed-tree, group selection, and light selection. In addition, the effects of livestock grazing (excluded or not) were examined.

A century of cooperation: The Fort Valley Experimental Forest and the Coconino National Forest in Flagstaff

Publications Posted on: March 26, 2009
This poster presents the continuing cooperative relationship between the Fort Valley Experimental Forest (FVEF), Coconino National Forest (CNF), USFS Region 3, and the long-term partnerships with the Museum of the Northern Arizona and the NAU School of Forestry.