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USGS NRP Tucson: Landscape Change in the Southwest

Changes in Riparian Vegetation in Arizona

San Carlos River Near Peridot (09468500), October 6, 2000

San Carlos River Near Peridot (09468500), October 6, 2000.
Dominic Oldershaw, Stake 333c The San Carlos River became partially regulated by Talkalai Reservoir in 1979. The channel has shifted out of the view to the right and is narrower than it was in 1964. Most of the plants in the foreground, which is now a stable floodplain, are natives, including two species of willows, two species of brickellbush, and scattered mesquite and catclaw. Riparian vegetation has increased and the channel remains narrow despite a flood of 54,800 ft3/s in 1993, which is the flood of record for this gaging station.

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