REP01999

• 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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Table 9. TRENDS IN MEAN COVER FOR THE PORTION OF THE RECLAIMED AREA SEEDED IN 1988. WALDEN COAL
PROJECT SITE. BASED ON DATA COLLECTED BETWEEN 1969 AND 1996. MEAN COVER VALUES IN PERCENT.

Species 1989 1990 1991 1992 1993 1999 1995 1996

Sample Size 14 19 19 19 19 14 19 19

COOL SEASON PERENNIAL GRASSES
Agropyron dasysta chyum 6.57 17.57 9.86 18.43 20.00 13,00 8.19 9.71
Agros tis scabra 0.00 0.01 0.00 0,00 0.00 0,00 0.00
Agropyron smithii 2.29 3.57 1.57 0,57 0.57 0.57 0.00 0.14
Agropyron spi catum 0.00 0.01 0.01 0,01 0.01 0,01 0.00 0.00
Agropyron tra chyca ul um 0.00 0.00 0.00 0.14 0.00 0,00 0.00 0.00
Ce ra tochloa-margina-ta ~rfnq 0.00 0.00 0.00 0,00 0.00 0,01 0.00 0.00
Deschampsia ca espitosa 0.00 0.01 0.00 0,00 0.00 0,00 0.00 0.00
Fes[uca idahoen sis 0.00 0.00 0.00 0,00 1.19 0,00 0.00 0.00
Ho rdeum Juba tum 0.00 0.01 0.01 0,01 0.00 0,00 0.01 0.00
Koeleria macrantha 0.00 0.00 0.00 0,00 0.01 0,00 0.00 0.00
Oryzopsis hymenoides 0.00 0.01 0.01 0.01 0.01 0.19 0.01 0.01
Poa ampla 0.00 0.00 0.00 0,00 0.19 0,00 0.00 0.00
Poa secunda 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0.19
Stipa Columbiana 0.00 0.00 0.00 0.00 0.00 0,00 0.01 0.00
Stipa vi ridula 0.93 0.00 0.00 0,01 0.00 0.00 0.00 0.00
Subtotal 9.29 21.19 11.46 19,18 21.89 13,73 8.17 10.00

INTRODUCED PERENNIAL GRASSES
Agropyron crista tum 0.00 0.01 0.00 0.01 0.19 0.01 0.01 0.01
Alopecurus pra tensis 0.00 3.00 0.01 1.29 1.00 0.71 0.86 0.19
Bromus inermis 0.00 0.00 0.00 0.01 0.00 0.00 0.01 0.01
El ymus jun ceus 0.14 3.93 3.86 9.57 9.57 8,71 21.57 15.19
Festuca ovina 0.00 2.19 2.86 0,01 0.93 3.71 0.57 0.71
Subtotal 0.14 8.58 6.72 10,89 11.19 13.19 23.02 16.00

ANNUAL GRASSES
Bromus tectorum 0.00 0.01 0.00 0,00 0.00 0.00 0.00 0.00
Subtotal 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00