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<br />165. Burgi, P.H., 1979, Winter ice jams on the Gunnison River: Bureau of Reclamation Technical
<br />Report REC-ERC-79-4, 35 p. [Available from National Technical Information Service,
<br />Springfield, VA 22161 as NTIS Report PB-80 131543.]
<br />
<br />The formation, transport, and accumulation of ice on a 14 km stretch of the Gunnison
<br />River in Colorado was studied during a six year period. The Gunnison River, a
<br />principal tributary of the Colorado River, has an average elevation of 2,300 m above
<br />sea level for the area studied. Located along the study area are two reservoirs, the
<br />Taylor Park Reservoir which is upriver from the Blue Mesa Reservoir at the lower end
<br />of the area. Winter conditions are severe with 3 days in January of 1971 having a
<br />maximum temperature of -180C or below with the lowest temperature being -380C.
<br />Various river channelization, river snagging, and clearing operations have been
<br />performed in an attempt to reduce the ice jamming problem. Since 1967, with the
<br />filling of the Blue Mesa Reservoir, descriptive records have been kept on the winter
<br />ice jams. Summaries of these annual descriptions are included. Study results show
<br />that the elevation of the Blue Mesa Reservoir at the end of November is a major factor
<br />in determining the location of the ice jam head at the start of the season. The higher
<br />the reservoir, the further upstream the ice jam starts. Clearing and snagging
<br />operations have had little effect on reducing the jamming; however, the construction
<br />of larger ice collection areas has helped. A good correlation was observed between
<br />upstream ice jam movement and average temperature below -loOC. Large releases
<br />from the Taylor Park Reservoir during the winter contribute to the ice formation
<br />problem. Data summaries, maps, and photographs are included.
<br />
<br />166. Burkhard, W.T., 1967, Stream fishery studies--Effects of channelization on the trout fishery of
<br />Tomichi Creek: Denver, Colo., Colorado Department of Game, Fish, and Parks, Federal Aid
<br />Project F-Q26-R-Q4, Job 6,9 p.
<br />
<br />167. Burkhard, W.T., 1977, Taylor River flow investigations: Denver, Colo., Colorado Division of
<br />Wildlife, Federal Aid Project F-51-R-4, Job Interim Report, Job 1,49 p.
<br />
<br />168. Burkhard, W. T., 1978, Vertebrate associations in lowland versus high elevation river and stream
<br />habitat in Colorado, in Graul, W.o., and Bissell, S.J., tech. coords., Lowland river and stream
<br />habitat in Colorado-A symposium, Greeley, Colo., October 4-5, 1978: Colorado Chapter of the
<br />Wildlife Society and Colorado Audubon Council, p. 52-55.
<br />
<br />169. Burkhard, W.T., and Lytle, T.A, 1978, Final report for fish and wildlife resource analysis of the
<br />West Divide Project: Grand Junction, Colo., Colorado Division of Wildlife, 310 p.
<br />
<br />170. Burkhard, W.T., Smith, N.F., Lytle, T.A, and Burdick, H.E., 1979, Final report for fish and
<br />wildlife resource analysis of the Grand Mesa Project: Grand Junction, Colo., Colorado Division
<br />of Wildlife, 515 p.
<br />
<br />171. Busch, D.E., and Smith, S.D., 1993, Effects of fire on water and salinity relations of riparian
<br />woody taxa: Oecologia [Heidelberg], v. 94, p. 186-194.
<br />
<br />Water and salinity relations were evaluated in recovering burned individuals of the
<br />dominant woody taxa from low-elevation riparian plant communities of the
<br />southwestern U.S. Soil elemental analyses indicated that concentrations of most
<br />nutrients increased following fire, contributing to a potential nutrient abundance
<br />
<br />32 Bibliography. Indices, and Data Sources of Water-Related Studies, Upper Colorado River Basin. Colorado
<br />and Utah, 1872-1995
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