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Keyword: pinyon-juniper

History of watershed research in the Central Arizona Highlands

Publications Posted on: August 01, 2018
The Central Arizona Highlands have been the focus of a wide range of research efforts designed to learn more about the effects of natural and human induced disturbances on the functioning, processes, and components of the region's ecosystems.

Dendrochronology of Utah juniper

Science Spotlights Posted on: August 01, 2016
Annual precision of tree-ring data is often sought for detailed analyses. Important, widespread species such as ponderosa pine and Douglas-fir are often used for tree-ring science. However, there are other low elevation species, oftentimes termed woodland trees that could also be useful, including Utah juniper.

Silvics and silviculture in the southwestern pinyon-juniper woodlands

Publications Posted on: May 12, 2016
Southwestern pinyon-juniper and juniper woodlands cover large areas of the western United States. The woodlands have been viewed as places of beauty and sources of valuable resource products or as weed-dominated landscapes that hinder the production of forage for livestock. They are special places because of the emotions and controversies that encircle their management.

Dendrochronology of Utah Juniper (Juniperus osteosperma (Torr.) Little)

Publications Posted on: March 23, 2016
Utah juniper was a foundational species for the discipline of dendrochronology, having been used in the early 20th Century investigations of Mesa Verde, but has been largely ignored by dendrochronologists since. Here we present dendrochronological investigations of Utah juniper core and cross-sectional samples from four sites in northern Utah.

Ecology and management of oak and associated woodlands: Perspectives in the southwestern United States and northern Mexico; 1992 April 27-30; Sierra Vista, AZ

Publications Posted on: January 07, 2016
This symposium focused on technologies that bridge the gap between research and its application in the management of woodlands. Topic areas include: ecology and silvicutural practices; growth, yield, and utilization potentials; livestock and grazing practices; wildlife habitat and values; and hydrology and watershed management.

Fire rehabilitation using native and introduced species: A landscape trial

Publications Posted on: March 26, 2015
rehabilitation study comparing a predominately introduced species seed mix used by the US Department of Interior-Bureau of Land Management (BLM), a mix of native and introduced species provided by the US Department of Agriculture-Agricultural Research Service (ARS), and 2 native seed mixes (high and low diversity). Mixes were seeded with a rangeland drill on the big sagebrush (Artemisia tridentata var. wyomingensis [Beetle & A.

Assessing mechanical mastication and thinning-piling-burning treatments on the pinyon-juniper woodlands of southwestern Colorado

Publications Posted on: May 14, 2013
New knowledge of fire regimes in the pinyon-juniper woodlands of the interior western United States has altered management views. Once known as being at low wildfire risk, these woodlands are now at a higher risk for severe wildfires because of high tree densities exacerbated by ongoing drought and region-wide bark beetle (Ips confusus) infestation.

Belowground ecosystems [chapter 9]

Publications Posted on: September 19, 2011
The USDA Forest Service defined ecosystem management as "an ecological approach to achieve multiple-use management of national forests and grasslands by blending the needs of people and environmental values in such a way that national forests and grasslands represent diverse, healthy, productive, and sustainable ecosystems" (June 4, 1992, letter from Chief FS). This approach spans many different scales, both in time and space.

Fish fauna [chapter 8]

Publications Posted on: September 19, 2011
The Rio Grande was recently classified as one of the most endangered or imperiled rivers in North America (American Rivers 1993). Originating in southwestern Colorado, it passes through New Mexico and forms the international boundary between the United States (Texas) and Mexico.

Plants, arthropods, and birds of the Rio Grande [chapter 7]

Publications Posted on: September 19, 2011
Human populations have increased dramatically along the Rio Grande since European settlement. Human use of water for irrigation and consumption, and human use of land for agriculture, urban centers, livestock grazing, and recreation have changed Rio Grande ecosystems by altering flood cycles, channel geomorphology, upslope processes, and water quality and quantity.

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