Thesis (Ph.D.)--University of Wyoming, 2008. / Title from PDF title page (viewed on August 4, 2009). Includes bibliographical references.

Thesis (M.S.) in Civil Engineering--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaves 173-177).

Thesis (M.S.)--University of Michigan, 2002. / Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 169-181).

Four artificial tracers were applied to a small headwater catchment in south western British Columbia to study runoff generated from topographically distinct landscape units. The seven hectare catchment is located in the University of British Columbia Malcolm Knapp Research Forest at low elevation (190-280 masl). A weir, multiple tipping bucket rain gauges and several piezometers were used to collect hydrological data. Three separate landscape units were identified based on topography, soil properties and proximity to the stream. The units included an area of shallow slope and deep soil, a riparian area along the intermittent stream channel and an area of very shallow soil with bedrock outcrops on a steep slope. Tracers used included rhodamine-WT, uranine, sodium chloride and potassium bromide. A suite of ion selective and fluorometric probes were used along with automated water sampling to monitor tracer breakthrough. The collected samples were analysed in the lab to validate the field measurements. Tracers were dissolved in solution and applied aerially with a backpack sprayer at the onset of forecasted precipitation events to facilitate rapid infiltration into the soil. The first application took place January 4th, 2006. Measurements were then taken continuously until March 20th, 2006, when a second round of tracers was applied to the landscape units. During the first measurement period, 532 mm of precipitation fell below the forest canopy over 75 days. During the second 78 day measurement period, 290 mm of rain fell. It was found that the overall wetness of the catchment affected travel times significantly. Large storms during the first, significantly wetter, application period exhibited similar lag times from peak event discharge to tracer arrival between the different landscape units. During small precipitation events and under dryer conditions, travel times were greatest in the area of shallow slope and deep soils. These lag times are indicative of longer pathways and perhaps the non-initiation of preferential flow below certain thresholds. In general, it was concluded that delineating catchments into groups of similar landscape units based on physical characteristics may be a promising new approach to explaining catchment runoff response. / Arts, Faculty of / Geography, Department of / Graduate

In recent years, stormwater has been found to be a major source of pollution to receiving waters. Major research efforts have been directed in this area, primarily as a result of the Federal Water Pollution Control Act and Public law 92-500, the 1972 Amendments to the act. Yet, a need remains for more data in the field of stormwater management. Such needs include cost-performance data and planning methodologies to optimally select best management practices (BMP's). The research culminating in this report addresses these needs. A computer program, "MANAGE", has been written to generate cost/efficiency curves, and uses these curves to optimally select a combination of management practices. The program was written in FORTRAN language and was run on the IBM 360/370 computer system. It can analyze up to 3 management practices per subwatershed and up to 20 subwatersheds in a given watershed. The optimization routine of the program utilizes a piece-wise linear approximation method in its analysis.

Watershed restoration has in recent years received a great deal of attention from policy makers and other stakeholders in British Columbia. Two hundred twenty seven watershed restoration projects were approved for funding by Forest Renewal British Columbia during the 1995-1996 fiscal year, with an approved budget of $22.2 million dollars. Despite this attention, there is no clear agreement on what watershed restoration is or how it should be evaluated. There is a pressing need for a watershed restoration evaluation process to be developed and implemented at the program level. The purpose of this research is to develop an evaluative framework for watershed restoration initiatives generally, and apply it to the Squamish River Watershed Restoration Project as a means of testing and improving the framework. In the process an evaluation of the Squamish River Watershed Restoration Project is conducted. The methods used to conduct this research included: (1) a comprehensive review of project reports, proposals and other relevant literature, (2) the design and application of a structured evaluative framework and (3) informational interviews with individuals representing legitimate interests in the case study. The evaluative framework appeared to be successful at measuring the performance of the case study, and may have great potential as a program evaluation tool. Application of this evaluative framework to other watershed restoration initiatives may help advance the goals of ecological restoration and sustainable development through investment in natural capital. It is recommended that future initiatives could benefit by: • Utilizing an ecosystem approach to natural resource management, one that emphasizes investment in natural capital, the establishment and maintenance of self sustaining social and ecological systems. • Utilizing a commonly recognized definition of ecological restoration, as promoting: (1) ecologically and socially desirable ecosystem values; (2) identifies functional and structural elements essential to self-sustaining systems; (3) facilitation of ecosystem recovery. • Applying the principles of decision analysis, and the use of the fundamental objectives that have been developed as a part of this work throughout the different phases of the project. • Incorporating the principles and practice of Adaptive Management. • Incorporating a collaborative approach to problem solving and, decision making when appropriate.

Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1983. / Includes bibliographical references (leaves 87-88).

Thesis (M.S.)--Michigan State University. Dept. of Resource Development, 2006. / Title from PDF t.p. (viewed on June 19, 2009) Includes bibliographical references (p. 329-334). Also issued in print.

Thesis (Ph. D.)--University of Oregon, 2005. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 177-195). Also available for download via the World Wide Web; free to University of Oregon users.