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Keyword: soil

Hydrology and landscape structure control subalpine catchment carbon export

Publications Posted on: July 28, 2015
Carbon export from high elevation ecosystems is a critical component of the global carbon cycle. Ecosystems in northern latitudes have become the focus of much research due to their potential as large sinks of carbon in the atmosphere.

Pressure pumping of carbon dioxide from soil

Publications Posted on: May 29, 2015
Recent interest in atmospheric increases in carbon dioxide have heightened the need for improved accuracy in measurements of fluxes of carbon dioxide from soils.

The influence of parent material on vegetation response 15 years after the Dude Fire, Arizona

Publications Posted on: March 12, 2015
This study examined the effects of two types of parent material, sandstone and limestone, on the response of vegetation growth after the 1990 Dude Fire in central Arizona. The operating hypothesis of the study was that, given the right conditions, severe wildfire can trigger vegetation type conversion.

Boron- and salt-tolerant trees and shrubs for northern Nevada

Publications Posted on: June 25, 2013
Boron is a mineral that, in small quantities, is essential for plant growth and development , but becomes toxic at levels above 0.5 to 1 part per million (ppm) in the soil. Excess boron may be naturally present in the soil, and it can accumulate by irrigating with water high in boron. Boron occurs naturally in arid soils originating from geologically young deposits.

Exotic, native and seeded species and soil biotic community response to post-fire seedings in northern Utah

Publications Posted on: June 21, 2013
Post-fire seeding of native species is intended to reduce weed entry, yet few studies have addressed the impacts of seeding methods on the establishment and persistence of exotic annuals. In summers of 2010 and 2011, we investigated productivity of exotic annuals across rehabilitation seedings that were established on the Scooby Wildfire site in northern Utah. The site, which was formerly dominated by Artemisia tridentata Nutt. ssp.

Restoring dry and moist forests of the inland northwestern U.S.

Publications Posted on: May 29, 2013
The complex topography of the inland northwestern U.S. (58.4 million ha) interacts with continental and maritime air masses to create a highly variable climate, which results in a variety of forest settings. Historically (1850 to 1900), approximately 20% of the area was covered by dry forests (Pinus ponderosa, Pseudotsuga menziesii), and an estimated 18% was covered by moist forests (Pinus monticola, Tsuga heterophylla).

Soil carbon and nitrogen pools in mid- to late-successional forest stands of the northwestern United States: Potential impact of fire

Publications Posted on: May 14, 2013
When sampling woody residue (WR) and organic matter (OM) present in forest floor, soil wood, and surface mineral soil (030 cm) in 14 mid- to late-successional stands across a wide variety of soil types and climatic regimes in the northwestern USA, we found that 44%-84% of carbon (C) was in WR and surface OM, whereas >80% of nitrogen (N) was in the mineral soil.

Threats to western United States riparian ecosystems: A bibliography

Publications Posted on: January 15, 2013
This bibliography is a compendium of state-of-knowledge publications about the threats affecting western U.S. riparian ecosystems and is a companion to the website: