Channel dynamics in Canyon de Chelly National Monument, Arizona, with emphasis on the effect of invasive plants
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The purpose of this research was to evaluate the relative regional and local-scale influences on historic and contemporary channel change in Canyon de Chelly National Monument, Arizona, USA, with particular emphasis on the invasive, exotic plant species, tamarisk (Tamarix spp.) and Russian olive (Elaeagnus angustifolia). The stream in Canyon de Chelly is characteristic of sand-bed channels in the arid/semi-arid southwestern US, which exhibit dramatic and complex channel morphology at timescales of decades to centuries. In the last 70 years, the channel has experienced substantial narrowing and ...