My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE47344
DRMS
>
Back File Migration
>
Permit File
>
500000
>
PERMFILE47344
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:49:23 PM
Creation date
11/20/2007 1:07:02 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1994082
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
1990/1992 Vegetation Baseline Report
Section_Exhibit Name
Tab 10 Attachment 10-1
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
42
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
• Aspen <br />Trees thoroughly dominate the cover in the Aspen vegetation type -- this dominance of a <br />vegetation type by a single lifeform was exceeded only by shrubs in the Mountain Brush <br />vegetation type. Based on 1990 and 1992 sampling the understory was dominated by <br />shrubs with 12/12 species, and native perennial forts with 44/45 species; both of these <br />lifeforms were highly diverse when compared to 'stress-site' types such as Western <br />Wheatgrass/Alkali Sagebrush or Steep Mountain Brush, but very similar to the more mesic <br />types of Mountain Brush and Sagebrush. Within the Aspen vegetation type, the abundance of <br />annual and biennial forts was the lowest of any type, probably due to the very high <br />abundance of perennial competition. The introduced growth forms had both low cover and <br />species density. In terms of species density, native perennial forts are more abundant <br />(20.1/15.7 species per 100 sq.m.) in the Aspen vegetation type than any other, and shrub <br />species density is only slightly less than in the shrub-dominated Mountain Brush and <br />Sagebrush vegetation types. <br />Mountain Brush <br />• Based on 1990/1992 sampling the Mountain Brush community was dominated by shrubs <br />with 10/14 species. With 4.4/4.8 shrub species per 100 sq. m., this type had the highest <br />shrub species density of all community types. The native perennial fort growth form had a <br />total occurrence 48 to 57 species, the greatest of any community. The other native growth <br />forms were well represented with moderate numbers of species. The introduced growth <br />forms were dominated by annual/biennial (orbs, and were slightly more prevalent than in <br />the Aspen type, but did not contribute greatly to cover. The fact tfiat this community was <br />similar to the Aspen vegetation type in terms of species density and cover for the different <br />growth forms, attests to the similarity of their environments. The absence of quaking aspen <br />appeared to be compensated by the increased diversity in all growth forms (compared to <br />aspen) and the cover dominance by shrubs. <br />Sagebrush <br />Within the Sagebrush vegetation type, species densities for native perennial grasses, native <br />perennial forts, and native annual biennial (orbs, were 5.60/6.73, 11.33/10.93, and <br />1.47/2.00 species per 100 sq. m., respectively. This community demonstrated a <br />descending dominance progression from shrubs to grasses to forts. Reduced dominance by <br />• the shrubs, compared to the Mountain Brush type, was accompanied by increased diversity <br />and/or cover in the native perennial grasses and forts. Introduced species were <br />27 <br />
The URL can be used to link to this page
Your browser does not support the video tag.