1. Investigators CSU - Redente, Barbarick, Miller EPA - Brobst
Buffalo Creek Fire
Investigators
CSU - Redente, Barbarick, Miller
EPA - Brobst

2. Background Information
Fire May 18, 1996
Burned 4806 hectares of Ponderosa Pine/Douglas Fir at 2,200 m elevation
Severe Erosion following Thunderstorms in 1996
Stream Flow – Normal < 10CFS
Steam Flow – Storm > 30,000CFS

8. Project Objectives
Compare effects of single application of biosolids at 0,5,10,20,40 and 80 Mg/ha.
Plant establishment
Biomass production
Species diversity
Chemical quality of Plant and Soil
Runoff quantity and quality

9. Experimental Design 24 treatment plots - 6 treatments/ 4 reps. of each
Each plot 3m x m
Use of Full size Application Equipment
Single application of composted biosolids
disced to depth of cm
Seeded at 27 kg/ha (FS provided Seed)

11. Biomass Production

12. Cover Comparison Biosolids Plots

13. Mean % Canopy Cover by Cover Type(2000)
App.Rate
Plant
Litter
Bare-grnd
Rock
41.25b
22.75c
35.75a
0.25b 5
51.00a
29.50b
18.25bc
1.25b 10
50.86a
32.85b
16.04bc 20
48.75a
36.50b
14.00bc
0.75b 40
46.86a
34.41b
18.23bc
0.50b 80
53.25a
39.50b
7.00c
Between
52.42a
15.80c
31.31a
0.47b
Hvy Burn
52.67a
17.00c
26.67ab
3.67a
Light Burn
36.67b
11.67c
0.67b

14. Mean Biomass g/m2 by life form (2000)
App.Rate
Grass
Forbs
Shrub
Total
46.31
2.54
0.34
49.02 5
50.80
2.24
0.28
53.32 10
61.14
1.51
0.29
62.94 20
82.68
3.15
4.09
89.62 40
87.18
1.90
1.19
90.27 80
127.23
0.31
0.01
127.54
Between
13.14
53.57
9.84
76.55
Light Burn
12.95
14.68
4.70
32.32

15. Photo Comparison