CHARACTERIZATION OF ALPINE SOILS,EAGLE CAP,WALLOWA MOUNTAINS,OREGON |
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| Authors: | Charles E Allen Scott F Burns |
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| Institution: | 1. Department of Geography , University of Illinois , Urbana, Illinois 61801;2. Department of Geology , Portland State University , Portland, Oregon 97207 |
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| Abstract: | This study examines alpine soil development along a toposequence on Eagle Cap, Wallowa Mountains, northeast Oregon. Soils studied are from Wind Blown (WB) and Minimal Snow Cover (MSC) sites in the Ridge-Top Tundra geomorphic province. The soils are predominantly loamy sands, and exhibit minimal structural development. Soil pH ranges from 6.5 to 7.3 increasing with depth, and organic carbon ranges from 3.9% in the A horizon to 0.8% in the C horizon. The soils display significant input from Cascade volcanic ash infall and eolian influx from the weathered marble nearby. It is postulated that the ash content in the soils originates from Mazama Ash deposits. Though Eagle Cap soils have developed for the most part on granodiorite, the strong influence of the volcanic ash on pedogenesis leads to a preliminary classification of Andisols, most probably Typic and Lithic Haplocryands. Key words: Alpine soils, Andisols, Wallowa Mountains.] |
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| Keywords: | hardware model scaling scale model urban climate urban dew |
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