Laserfiche WebLink
<br />001929 <br /> <br />BAUCH & SPAHR: SALINITY TRENDS IN SURFACE WATERS OF THE COLORADO RIVER BASIN <br /> <br />649 <br /> <br />Of the 43 Colorado River Basin sites analyzed for trends <br />by Liebermann et al. (1989), 18 had results indicating <br />significant decreasing flow-adjusted dissolved-solids <br />concentrations. The significant downward trends in <br />flow-adjusted dissolved-solids concentrations and loads <br />noted by Butler (1996) for the Colorado River near <br />Cameo site and in this current study for sites upstream <br /> <br />from Cameo and in the Gunnison River Basin have <br />been observed at other sites in the Colorado River Basin <br />not in Colorado (Kircher, 1984; Liebermann et ai. 1989). <br /> <br />Trend Analysis <br /> <br />To account for streamflow changes, dissolved-solids <br />concentrations and monthly and annual dissolved-solids <br /> <br /> <br />Water Years 1970-93 <br /> <br />Water Years 1980 - 93 <br /> <br />WaterYears 1986-93 <br /> <br />EXPLANATION <br /> <br />10 <br />... Downward Trend <br />10 <br />& Upward Trend <br />10 <br />. No Trend <br /> <br />. Salinity-Control Projects <br /> <br />o 20 40 MILES <br />I .'. . <br />o 20 40 KILDMETERS <br /> <br />Fig.4. Trends in now-adjusted dissolved-solids concentrations in tbe Colorado and Gunnison River Basins, water years 1970-1993, 1980-1993, <br />1986-1993. Number adjacent to symbol designates site number listed in Table L Data for Sites 9 and 13 from Buder (1996). <br />