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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Shrub > Species: Salix glauca | Grayleaf Willow
 

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FIRE EFFECTS

SPECIES: Salix glauca | Grayleaf Willow
IMMEDIATE FIRE EFFECT ON PLANT : Grayleaf willows that occur in white and black spruce forests can be killed by severe fires that completely remove soil organic layers and char the roots [39]. Less severe fires only top-kill plants. DISCUSSION AND QUALIFICATION OF FIRE EFFECT : NO-ENTRY PLANT RESPONSE TO FIRE : Grayleaf willow is one of the most abundant willows following fire in white spruce forests of interior Alaska [14]. There are commonly several thousand stems per acre by 10 years after fire. However, its abundance is short-lived, and it is often absent by year 40 as dense white spruce sapling stands develop [14]. Grayleaf willow is also common on mesic black spruce sites after fire. One ll-year-old burn near the Tanana River had about 4,700 grayleaf, Alaska, and diamondleaf willow stems per acre (11,500/ha), and lesser amounts of spruce and poplar [38]. DISCUSSION AND QUALIFICATION OF PLANT RESPONSE : Fire severity can affect the mode of willow postfire recovery. Following light fires most willows recover quickly, sending up new shoots from undamaged root crowns. Few if any seedlings establish following this type of burn because organic soil layers are only partially consumed, which prevents seedling establishment. Following severe fires, however, the primary mode of recovery is seedling establishment. Severe fires that burn deep into organic soils kill willows but expose mineral soils, which provide excellent seedbeds. FIRE MANAGEMENT CONSIDERATIONS : NO-ENTRY

Related categories for Species: Salix glauca | Grayleaf Willow

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Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

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