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Preliminary assessment of sediment sources in the Lower Little Bow River watershed using Diffuse Reflectance Spectrometry
(2014) Caron, Melody E.G.; Lobb, David A.; Liu, Kui; Miller, Jim J.; Owens, Philip N.
The Lower Little Bow River watershed was one of the study sites in Agriculture and Agri-food Canada’s Watershed Evaluation of BMPs (WEBs) program. The 55,664-hectare Lower Little Bow River Watershed is located within the Oldman River Basin in southwest Alberta (Figure 1). The Lower Little Bow River WEBs project focused on a micro-watershed (2,565 hectares) north of Lethbridge (Figure 2). Land use in the Lower Little Bow River watershed includes a wide range of agricultural activities and intensities such as cow-calf operations on native range, dryland farming, intensive irrigated row crop farming, and intensive livestock operations. Sediment in the river impairs water quality and is suspected of causing problems with farm irrigation systems which draw water from the river. There are several potential sources of sediment along the reach of the river studied in the WEBs project, and this research was undertaken to assess their importance.