1. 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 100-300m Use of Full size Application Equipment Single application of composted biosolids disced to depth of 10-20 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.RatePlantLitterBare-grndRock 041.25b22.75c35.75a0.25b 551.00a29.50b18.25bc1.25b 1050.86a32.85b16.04bc0.25b 2048.75a36.50b14.00bc0.75b 4046.86a34.41b18.23bc0.50b 8053.25a39.50b7.00c0.25b Between52.42a15.80c31.31a0.47b Hvy Burn52.67a17.00c26.67ab3.67a Light Burn36.67b51.00a11.67c0.67b

14. Mean Biomass g/m 2 by life form (2000) App.RateGrassForbsShrubTotal 046.312.540.3449.02 550.802.240.2853.32 1061.141.510.2962.94 2082.683.154.0989.62 4087.181.901.1990.27 80127.230.310.01127.54 Between13.1453.579.8476.55 Light Burn12.9514.684.7032.32

15. Photo Comparison