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Water Efficiency for Urban Landscapes in Semi-Arid Environments

Creator:: Martinson, Richard W.
Abstract:: Urban landscape water use is increasingly a focus of water conservation efforts. This is especially true in the arid and semi-arid regions of the western United States where increased demand, environmental concerns, and extended periods of drought have created chronic water shortages. However, until recently, little attention has been paid...
Resource Type:: Dissertation
Full Text:: especially true in the arid and semi-arid regions of the western United States where increased demand

Soil surface application of asphalt in afforestation in semi-arid zones of Iran

Creator:: Kowsar, Ahang
Resource Type:: Dissertation
Full Text:: hazardous to plants and animals. Soil Surface Application of Asphalt in Afforestation in Semi-Arid Zones

Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

Creator:: Kizito, Fred
Abstract:: Water availability is a critical limiting element in semi-arid ecosystem productivity and presents particular challenges in Sahelian countries such as Senegal. The landscapes are characterized by the presence of two common semi-arid shrubs (Piliostigma reticulatum and Guiera senegalensis), both of which may be important hydraulic regulators in these water-limited ecosystems....
Resource Type:: Dissertation
Full Text:: : Hydrological Consequences of Two Native Shrubs in Semi-arid Senegal: Patterns, Processes, Concepts and Methods

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis
Full Text:: . Seed Bank Ecology in Semi-arid Environments Review of the Literature Unfortunately, research

Water quality impacts of free ranging cattle in semi-arid environments

Creator:: Larsen, Royce E.
Abstract:: The purpose of this study was to evaluate the effects that free ranging cattle have on water quality in semi-arid environments. There were three specific objectives: 1) To determine the concentration and distribution of cattle feces in meadows, riparian zones, and the associated uplands. 2) To determine the fecal deposition...
Resource Type:: Masters Thesis
Full Text:: Impacts of Free Ranging Cattle in Semi-arid Environments. by Royce E. Larsen A THESIS submitted to

2008 dryland agricultural research annual report

Creator:: Oregon State University. Agricultural Experiment Station, United States. Agricultural Research Service, and Columbia Basin Agricultural Research Center
Resource Type:: Technical Report
Full Text:: , and K. Rhinhart. 2007. Tillage effects on water use and grain yield of winter wheat and green pea in

Five years of carbon fluxes and inherent water-use efficiency at two semi-arid pine forests with different disturbance histories

Creator:: Vickers, Dean, Thomas, Christoph K., Pettijohn, Cory, Martin, Jon G., and Law, Beverly E.
Abstract:: Five years of eddy-covariance and other measurements at a mature ponderosa pine forest and a nearby young plantation are used to contrast the carbon fluxes for long-term averages, seasonal patterns, diel patterns and interannual variability, and to examine the differing responses to water-stress. The mature forest with larger leaf area...
Resource Type:: Article
Full Text:: record of fluxes allows one to examine the effects of interannual variation in climate on ecosystem

Activity, composition and structure of soil microbial communities in Savannahshrubs of agroecosystems in semi-arid Senegal

Creator:: Diedhiou, Sire
Abstract:: Piliostigma reticulatum and Guiera senegalensis are two native shrubs that coexist with row crops in parkland systems of the Sahel of Africa. Although permanently green all year around in soil depleted in nutrients and dry for a nine-month period, these shrubs have been largely overlooked. Conventional management of these shrubs...
Resource Type:: Dissertation
Full Text:: their physical, chemical and biological environments in a semi-arid savanna in Kenya. Cornell

Carbon and energy exchange of semi-arid ecosystems with heterogeneous canopy structure

Creator:: Anthoni, Peter M.
Abstract:: Carbon and energy fluxes were measured with the eddy covariance technique above two semi-arid ecosystems, ponderosa pine and juniper/sagebrush, located in central Oregon. The two ecosystems have low LAI and a very open canopy structure. The energy closure was ~70-80% at both ecosystems, equivalent to an imbalance of 150-250 W...
Resource Type:: Dissertation
Full Text:: . In 1996, in an effort to study the carbon and energy cycles of semi-arid Western ecosystem, the

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

Creator:: Mangla, Seema
Abstract:: Successful ecosystem restoration requires an understanding of the ecological processes directing succession. One of the challenges in the semi-arid grasslands of western United States is replacement of native species by invasive annual grasses. Solutions to this problem require identifying and manipulating ecological processes that direct succession to favor desired vegetation....
Resource Type:: Dissertation
Full Text:: hectares of arid land in the western United States, leading to loss of species diversity, livestock and

ScholarsArchive@OSU

Water Efficiency for Urban Landscapes in Semi-Arid Environments

Soil surface application of asphalt in afforestation in semi-arid zones of Iran

Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

Seed bank response to juniper expansion in the semi-arid lands of Oregon, USA

Water quality impacts of free ranging cattle in semi-arid environments

2008 dryland agricultural research annual report

Five years of carbon fluxes and inherent water-use efficiency at two semi-arid pine forests with different disturbance histories

Activity, composition and structure of soil microbial communities in Savannahshrubs of agroecosystems in semi-arid Senegal

Carbon and energy exchange of semi-arid ecosystems with heterogeneous canopy structure

Directing ecological succession : the role of competition in restoring semi-arid grasslands dominated by invasive plants

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