Date of Award

2009-01-01

Degree Name

Doctor of Philosophy

Department

Environmental Science and Engineering

Advisor(s)

Russell Chianelli

Abstract

Salt cedar (genus Tamarix, Family Tamaricaceae) is an exotic, invasive plant in southwestern North America; it has a poor reputation as a heavy-consumer of water and a threat to the landscape and ecology of the region. This study focuses upon saltseparation mechanisms in the salt cedar species Tamarix ramossissima (Ledeb.) which were investigated with a variety of microscopic techniques. The results indicate that this species can produce different salt crystal aggregates morphologies from its vesiculated trichomes, and may use variable mechanisms for separating anions and cations of various salts. It was additionally found that salt crystals aggregates in this species seem to track elemental characteristics of the soil with respect to salts and metals. The latter finding suggests that while the plant may be an invasive nuisance, it may also be eventually useful as a soil-quality environmental indicator or possibly and environmental indicator.

Language

en

Provenance

Received from ProQuest

File Size

260 pages

File Format

application/pdf

Rights Holder

Rudy Sookbirsingh

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