Table 1 Mulch and seed treatments applied by helicopter in fall 2005 on the School Fire. All treatments were limited to large patches of high severity burns on steep slopes.

Hydromulch + seed, native grasses

1.1 Mg ha⁻¹ (1000 libs ac⁻¹) wood fiber mulch with 90 kg ha⁻¹ (80 lbs ac⁻¹) guar tackifier and 11.3 kg ha⁻¹ (10 lbs ac⁻¹) pure live grass seed, locally sourced

56

20

Wheat straw mulch

2.2 Mg ha⁻¹ (1 t ac⁻¹), certified weed-free straw

57

32

WoodStraw® mulch

4.5 Mg ha⁻¹ (2 t ac⁻¹)

54

10

Seed only, native grasses

11.3 kg ha⁻¹ (10 lbs ac⁻¹) pure live seed, locally sourced

712

Untreated

None

Extensive