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Nutrient Mobilization and Processing in Sonoran Desert Riparian Soils Following Artificial Re-Wetting

Citation

Heffernan, James B, and Sponseller, Ryan A, Nutrient Mobilization and Processing in Sonoran Desert Riparian Soils Following Artificial Re-Wetting: .

Summary

Research in river-floodplain systems has emphasized the importance of nutrient delivery by floodwaters, but the mechanisms by which floods make nutrients available are rarely evaluated. Using a laboratory re-wetting experiment, we evaluated the alternative hypotheses that increased nutrient concentrations in riparian groundwater during flash floods are due to (HI) elevated nutrient concentrations in surface floodwaters entering the riparian zone or (H2) re-mobilization of nutrients from riparian soils. We sampled soils from the riparian zone of a 400 m reach of Sycamore Creek, AZ. Two sub-samples from each soil were re-wetted with a solution that mimicked the chemistry of floodwaters, with one subsample simultaneously treated with [...]

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  • Upper Colorado River Basin

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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 Nutrient Mobilization and Processing in Sonoran Desert Riparian Soils Following Artificial Re-Wetting

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