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Ecohydrology in a Colorado River riparian forest: implications for the decline of Populus fremontii

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Pataki, Diane E, Bush, Susan E, Gardner, Payton, Solomon, D Kip, and Ehleringer, James R, Ecohydrology in a Colorado River riparian forest: implications for the decline of Populus fremontii: .

Summary

Populus fremontii (Fremont cottonwood) was once a dominant species in desert riparian forests but has been increasingly replaced by the exotic invasive Tamarix ramosissima (saltcedar). Interspecific competition, reduced flooding frequency, and increased salinity have been implicated in the widespread decline of P. fremontii. To elucidate some of the multiple and interacting mechanisms of this decline, we examined ecological processes in a control stand of P. fremontii along the Colorado River in Utah, USA, as well as a disturbed stand characterized by high groundwater salinity and invasion of T. ramosissima. Sap flux data showed that P. fremontii at the saline site experienced large reductions in afternoon canopy stomatal conductance [...]

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:12:57 MDT 2012

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Title Citation Ecohydrology in a Colorado River riparian forest: implications for the decline of Populus fremontii

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