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DigitalCommons@USU
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Mountain regions around the globe provide numerous ecological and economic services such as drinking water for lowlands; natural resources that are used in agriculture, forestry, and mining; recreation and scenic beauty; wildlife habitats; carbon...
2009-01-01
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Digested sewage sludge was applied to pastures and tree plantations at 19 to 44 Mg/ha (dry weight) as part of a municipal sludge disposal program. The sludge had low concentrations of heavy metals and traces of 137Cs and 60Co. Monitoring of soils,...
1989-01-01
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Book Reviews: Forest Science, Volume 42, Number 2, 1 May 1996, pp. 258-259
1996-01-01
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Book Review : Goechimica et Cosmochimica Acta, volume 59, issue 5, pages 1029-1030
1995-01-01
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Book Review : Ecology, volume 72, number 5, pages 1909-1910
1991-01-01
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Atmospheric deposition of nitrogen (N) and sulfur (S) cause complex responses in ecosystems, from fertilization to forest ecosystem decline, freshwater eutrophication to acidification, loss of soil base cations, and alterations of disturbance...
2009-01-01
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Soils harvested from sites post fire possessed culturable microbes. Soils were from a coniferous wooded site with calcareous soils and from a granite-soil previously vegetated with juniper. The wood soils were 2-3 years post fire and were...
2009-11-01
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In a wild fire, organic volatile compounds from vegetation condense on soil particles forming a hydrophobic layer several centimeters below the soil surface. We are studying the mechanisms of degradation of the hydrophobic layer in soils from two...
2009-11-01
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Mediterranean forest ecosystems have unique features and provide multiple goods and services crucial for the welfare of urban populations of the Mediterranean region. Mediterranean forest are vulnerable to numerous threats such as forest fires....
2009-11-01
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Climatic change and abandonment of (sub)alpine pasture land enable trees to migrate into areas that are presently covered by dwarf-shrub communities. The advent of trees has the following consequences: (1) changed quality of aboveground litter,...
2009-04-01
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Atmospheric N deposition is becoming a stressor on ecosystems in the western U.S. There are few NADP monitoring sites and little is known about N deposition impacts on terrestrial ecosystems. High elevation ecosystems (i.e. above 2895 m) may be...
2007-11-01
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In the Intermountain West, aspen (Populus tremuloides) has declined mainly due to a combination of successional processes, fire suppression and long-term use of ungulates which has led to replacement by conifers, sagebrush or other shrub...
2007-11-01
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Encroachment of aspen (Populus tremuloides) by conifers in the Intermountain West is considered to have a negative impact on soil functions and carbon (C) storage. Little is known about C storage in aspen soils in the Intermountain West. The...
2006-11-01
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Defining soil organic carbon (SOC) quality and understanding the effects of vegetation cover and climate are of central importance to determining how stable SOC will be with changing climate and/or vegetation shifts. Our earlier investigations at...
2006-11-01
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Soils represent the largest carbon (C) reservoir of terrestrial ecosystems. The ability of soils to hold on to this soil organic carbon (SOC) depends on climate and C quality. The SOC dynamics in forest and range ecosystems in montane areas of the...
2005-11-01
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Enhancing carbon sequestration on grazing lands may help mitigate effects of greenhouse gas emissions and facilitate the development of carbon-offset protocols and carbon markets. The Intermountain West, however, is notable for a lack of...
2011-01-01
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Quaking aspen (Populus tremuloides) is an iconic component in the western landscape that is threatened by conifer encroachment. Prior studies in Northern Utah have shown that mineral soils under aspen forest contain significantly more soil organic...
2010-01-01
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In a wild fire, organic volatile compounds from vegetation condense on soil particles forming a hydrophobic layer several centimeters below the soil surface. We studied the degradation of the hydrophobic layer in soils from two fire sites. One...
2009-01-01
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We began a paired watershed study in the headwaters of the Weber River in northern Utah in 2003. The primary reason for the study is to identify vegetation treatments that are likely to result in restored ecosystem function of high elevation...
2005-10-01
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There is increasing interest in the impact of vegetation shifts, whether through management or global climate change, on the storage and stability of organic carbon in the mineral soil (SOC). Quaking aspen (Populus tremuloides) is an iconic...
2012-07-01
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Ecosystem experiments are arguably the most direct method available for predicting a population or environmental response to management and have contributed greatly to our understanding of ecological processes within watersheds. Often the...
2011-03-30
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Glen Canyon Dam has fundamentally changed the source, supply, and caliber of sediment carried by the Colorado River through Glen, Marble, and Grand Canyons. The first survey of the thalweg over the 225 river miles (365 km) within these three...
2011-03-30
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Riparian vegetation may recover quickly from disturbance when the disturbance vector is removed or reduced. Grazing is a disturbance that removes plant biomass through herbivory, while overgrazing is a more severe disturbance that can deplete...
2013-01-01
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