. Early postfire revegetation in a western Montana douglas-fir forest . Figure 11.—Willow {Sallx scouleriana) resprouting following the fire. In April 1978, white spirea and common snowberry (Symphoricarpos albus) were resprouting on severely burned sites, along with spring geophytes, conspicuous aster (Aster conspicuus), heartleaf arnica, and pinegrass. Less severely burned areas on the eastern edge of the fire exhibited a wider veiriety of resprouts, including fire- sensitive plants, for example, kinnikinnick (Arc- tostaphylos uva-ursi). Only a few annuals were seen. Slenderleaf collomia [Co
. Early postfire revegetation in a western Montana douglas-fir forest . Figure 11.—Willow {Sallx scouleriana) resprouting following the fire. In April 1978, white spirea and common snowberry (Symphoricarpos albus) were resprouting on severely burned sites, along with spring geophytes, conspicuous aster (Aster conspicuus), heartleaf arnica, and pinegrass. Less severely burned areas on the eastern edge of the fire exhibited a wider veiriety of resprouts, including fire- sensitive plants, for example, kinnikinnick (Arc- tostaphylos uva-ursi). Only a few annuals were seen. Slenderleaf collomia [Collomia linearis) and blue-eyed Meiry (Collinsia parviflora) were present and miner's let- tuce (Montia perfoliata) was conspicuous in many areas. Rapidly sprouting artifically seeded grass was also very conspicuous in most areas. During the spring of 1978, however, much of the burned £irea was black ash, and resprouts of perennials were scattered. Vegetative cover in ravines was somewhat more dense, but still scattered. By late June 1978, quantitative semipling began. Ar- tifically seeded grasses were well established and had achieved canopy coverage values of up to 32 to 36 per- cent in some upland plots. Native pinegrass responded quickly on upland sites and in drier ravine sites. In the ravines, shrub regrowth from rootstocks and rhizomes was already vigorous, with up to 40 percent cover. Annuals were most common on the burned area the first spring although they were a minor part of the vegetation. In addition to the annuals cited earlier, prickly lettuce {Lactuca serriola) established successfully on the burn in 1978. Its height made it conspicuous by summer and, although it achieved greater than 1 percent cover in only one stemd, it was present in nine of the ravine stands and 10 of the upland stands. By August £md September 1978, the spring geophytes, early flowering perennials, especially heartleaf arnica, and spring annuals had either disappeared from view or were r
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectdouglasfir
