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REP01999
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REP01999
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Last modified
8/24/2016 11:32:45 PM
Creation date
11/26/2007 10:08:16 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981021
IBM Index Class Name
Report
Doc Name
1996 EVALUATION OF REVEGETATION SUCCESS AT THE WALDEN COAL CO MINE SITE
Permit Index Doc Type
ANNUAL RECLAMATION REPORT
Media Type
D
Archive
No
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<br /> <br />' <br />1984 A Cover <br />rea in Percent <br />1988 Area <br />Combined <br /> Total Vegetation Cover 30,0 +/- q,00 27.1 +/- 6.50 28.0 +/- 5.91 <br />' Litter and Rock Combined 39.0 +/- 9,70 49.4 +/- 7,25 46.3 +/- 9.21 <br /> Bare Soil 31.0 +/- 8.07 23.4 +/-10.21 25.7 +/-10.06 <br /> Total Ground Cover (Total <br />' Vegetation + Litter) 69.0 +/- 8.07 76.6 +/-10.21 74.3 +/-10.06 <br />' In 1996 the dominant species on the reclaimed areas were Russian <br />' wildrye (EZymus junceus), thickspike wheatgrass (Agropyron <br />dasystachyum), big sagebrush (Artemisia tridentata) and green <br />' needlegrass (Trips viridula). For the combined data for the two <br />' reclaimed areas (Table 6), these four species accounted for 95.7 percent <br />of the cover by all species. In all, 26 species were observed in the <br />' reclaimed areas. There are some differences between the areas reclaimed <br />in 1984 and 1988. In the 1984 area, green needlegrass and big sagebrush <br />' are more abundant than in the 1988 area. Russian wildrye and thickspike <br />wheatgrass are more abundant in the 1988 area than they are in the 1984 <br />' area. The greater abundance of big sagebrush in the 1984 area may be <br />' related to the differences in ages of the two areas, however the cover <br /> data collected over the past eight years suggest that big sagebrush is <br />' increasing in cover very slowly in the 1988 area. In 1996, big <br /> sagebrush was the major species in the area seeded in 1984 and accounted <br /> bl <br />l <br />i <br />h 1 <br /> n t <br />at area (Ta <br />e <br />for 73,3 percent of the cover by a <br />l species ). <br />' Mean cover for big sagebrush increased from 8 percent in 1993 to 20 <br /> percent in 1994 and 22.0 percent in 1996. While this difference may be <br />' related to alight differences in sample transact location, it is clear <br /> that, on the basis of general observations made within the area, big <br />' -3- <br />
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