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Does dust matter? Geologic and eolian controls over ecosystem dynamics on the Colorado Plateau

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Neff, Jason C, Reynolds, Richard L, Lamothe, Paul J, Moscato, Silvina, and Belnap, Jayne, Does dust matter? Geologic and eolian controls over ecosystem dynamics on the Colorado Plateau: .

Summary

A number of studies have shown that dust delivers essential nutrients that sustain terrestrial productivity over millennia. Dust, however, contains a range of elements ranging from base cations, N and P, to heavy metals. Some of these elements will stimulate primary productivity over the time scale of soil development while others, such as metals, could inhibit biological activity. As dust accumulates, it also influences water flux and availability by altering soil texture. We are examining the ecological impacts of dust accumulation in Canyonlands National Park in Utah. Using magnetic susceptibility as a proxy for far-traveled dust, we have established transects in sandy surficial deposits (50-90% sand) in which dust contributes as [...]

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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 Does dust matter? Geologic and eolian controls over ecosystem dynamics on the Colorado Plateau

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