Dissertation/Thesis Abstract

Using the Rangeland Hydrology and Erosion Model to assess rangeland management practices on the Kaler Ranch
by Ross, Morgan, M.S., The University of Arizona, 2013, 91; 1538935
Abstract (Summary)

It is difficult to assess rangeland management practices at a hillslope scale because of the spatial and temporal variability of ecohydrological processes across a landscape. The Conservation Effects Assessment Project (CEAP) aims to provide a cost-effective method for quantifying benefits of conservation practices on rangelands. This study uses the Rangeland Hydrology and Erosion Model (RHEM) to develop a framework to assess rangeland management practices by quantifying sediment yield and runoff. Kaler Ranch, located in Eastern Arizona, was used as a study site because of their recently implemented rangeland conservation practices. Vegetation parameters were developed based on field data collected across the ranch and used to represent various rangeland management scenarios in RHEM. Peak flow and sediment yield rates were determined for each scenario using RHEM and were used as metrics to evaluate rangeland condition. RHEM provided an adequate method to evaluate the relative differences between upland rangeland management scenarios; however, it was less effective at evaluating changes in management practices within a riparian area.

Indexing (document details)
Advisor: Guertin, David P.
Commitee: McClaran, Mitchel
School: The University of Arizona
Department: Natural Resources
School Location: United States -- Arizona
Source: MAI 51/06M(E), Masters Abstracts International
Subjects: Natural Resource Management, Water Resource Management, Range management
Keywords: Erosion, Rangeland hydrology and erosion model, Watershed management
Publication Number: 1538935
ISBN: 978-1-303-13237-7
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