Page 9

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Title Is Utah Sahara Bound?
Subject Agriculture--Utah; Land use--Utah
Description The 11th Annual Frederick William Reynolds Lecture.
Creator Cottam, Walter Pace, 1894-
Publisher Extension Division, University of Utah
Date 1947-02-19
Date Digital 2008-05-29
Type Text
Format image/jpeg
Digitization Specifications Original scanned on Epson Expression 10000XL flatbed scanner and saved as 400 ppi uncompressed tiff. Display images generated in PhotoshopCS and uploaded into CONTENTdm Aquisition Station.
Resource Identifier http://content.lib.utah.edu/u?/reynolds,458
Source LD5526 .U8 n.s. v.37 no.11
Language eng
Relation Digital reproduction of "Is Utah Sahara Bound?," J. Willard Marriott Library Special Collections
Rights Digital Image Copyright University of Utah
Metadata Cataloger Seungkeol Choe; Ken Rockwell
ARK ark:/87278/s6w66hr0
Setname uu_fwrl
Date Created 2008-07-29
Date Modified 2009-03-13
ID 319731
Reference URL https://collections.lib.utah.edu/ark:/87278/s6w66hr0

Page Metadata

Title Page 9
Description " EVIDENCE OF VEGETATIONAL CHANGE 9 (3) Aspen forests are common on all high mountains of Utah at elevations between 7,000 and 9,500 feet. They are not permanent forests because the young trees are unable to grow in dense shade. Aspen are therefore commonly replaced by spruce and fir, which, when young, prefer and often require shade for successful growth and development. G. Mountain Coniferous Forests The coniferous forests above the juniper-pinyon belt are of two types: pine and spruce-fir. (1) Yellow pine forests occupy favorable sites between 6,500 and 8,000 feet elevations generally throughout the Colorado drainage in Utah. The trees are large and arranged in park-like fashion. Because of limited precipitation, the undercover is usually scant in yellow pine forests. (2) Lodgepole pine grow in thick, single-edged stands in the high Uinta Mountains. Like aspen, they are unable to grow in the shade and are therefore temporary forests only, being replaced by spruce and fir. (3) Spruce-fir forests are the most common conifer types of the high mountains throughout Utah with elevations ranging between 7,000 and 10,000 feet. The blue spruce and white fir are the dominant trees of the lower conifer belt, but from 9,500 feet to timberline these trees are replaced by Engelmann spruce and alpine fir. The Douglas fir are common throughout the entire conifer belt. H. Alpine-Arctic Types (1) Alpine-Arctic Tundra is a type characterized by low shrubs and herbs desert-like in appearance and similar in growth form to the flora of the Arctic Circle. It occupies rocky areas of high mountains above the timberline. (2) Subalpine grasslands are important types in the high Uin-tas and Wasatch plateau. They frequently extend above timberline. Evidence of Vegetational Change The methods used by ecologists for ascertaining the degree and the extent of vegetational change in plant communities fall into two general categories: historical and experimental. Historical Accounts The journals of early explorers and pioneers contain numerous references to the vegetation of Utah before and at the time of settlement, and although the men who wrote them were not trained botanists, still these descriptions seem to confirm our field studies in the conclusion that tremendous changes even in plant types have occurred during the past century, particularly throughout the foothill areas of our valleys. The vast upland areas now dominated by sagebrush, rabbitbrush and shadscale undoubtedly presented a grass-shrub aspect
Format image/jpeg
Identifier 009-RNLT-CottamWP_Page 9.jpg
Source Original Manuscript: Is Utah Sahara Bound? by Walter P. Cottam.
Setname uu_fwrl
Date Created 2008-07-29
Date Modified 2008-07-29
ID 319698
Reference URL https://collections.lib.utah.edu/ark:/87278/s6w66hr0/319698