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Open-File Report 2009-1219

Physical, Chemical, Ecological, and Age Data and Trench Logs from Surficial Deposits at Hatch Point, Southeastern Utah

By Harland L. Goldstein, Mark E. Miller, James C. Yount, Marith C. Reheis, Richard L. Reynolds, Jayne Belnap, Paul J. Lamothe, and John P. McGeehan

Abstract

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This report presents data and describes the methodology for physical, chemical and ecological measurements of sediment, soil, and vegetation, as well as age determinations of surficial deposits at Hatch Point, Canyon Rims area, Colorado Plateau, southeastern Utah. The results presented in this report support a study that examines geomorphic and soil factors that may influence boundaries between shrubland and grassland ecosystems in the study area. Shrubland ecosystems dominated by sagebrush (Artemisia tridentata) and grassland ecosystems dominated by native perennial grasses (for example, Hilaria jamesii and Sporabolis sp.) are high-priority conservation targets for the Federal Bureau of Land Management (BLM) and other resource managers because of their diversity, productivity, and vital importance as wildlife habitat. These ecosystems have been recognized as imperiled on a regional scale since at least the mid-1990s due to habitat loss (type conversions), land-use practices, and invasive exotic plants. In the Intermountain West, the exotic annual cheatgrass (Bromus tectorum) is recognized as one of the most pervasive and serious threats to the health of native sagebrush and grassland ecosystems through effects on fire regimes and resource conditions experienced by native species.

First posted October 22, 2009

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Suggested citation:

Goldstein, H.L., Miller, M.E., Yount, J.C., Reheis, M.C., Reynolds, R.L., Belnap, J., Lamothe, P.J., and McGeehan, J.P., 2009, Physical, chemical, ecological, and age data and trench logs from surficial deposits at Hatch Point, southeastern Utah: U.S. Geological Survey Open-File Report 2009–1219, 190 p.



Contents

Introduction

Methods

Acknowledgments

References Cited


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