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<br />Acts through decomposition Klein <br />to give some organic build- <br />up <br />Organic loss increases in Webber et al <br />snowdrift sites through leach- <br />ing. In poorly drained sites <br />decay is retarded: <br />General increase in solute Caine <br />removal and nutrient release <br />associated with higher water <br />fluxes and greater plant <br />decomposition rates. <br />Local increases in mudflows Caine <br />associated with snowdrifts <br />Long-term response to changed Caine <br />grouad cover around snowbanks <br />Environmental conditions un- Webber et al <br />likely to change. Slight <br />increase canopy opening, but <br />greater reduction from added <br />moisture and shorter growing <br />season <br />Delayed productivity in mar- Owen <br />ginal situations because of <br />delay in snowmelt. <br />Delay restricted to early- Owen <br />season growth. <br />Delay in some phenological Fechner <br />stages. <br />Delay restricted to early- Bock <br />season growth. <br />Effect only in snowbank Bock <br />areas <br /> <br />Low <br />Low <br />Low <br /> <br />Med <br /> <br />Low <br /> <br />Low <br /> <br />Med <br /> <br />Low <br />Med <br /> <br />Low <br /> <br />Low <br /> <br />Low <br />Low <br /> <br />Low <br /> <br />Med <br /> <br />None <br />None <br />None <br /> <br />Low <br /> <br />Low <br /> <br />Low <br /> <br />Low <br /> <br />Low <br />Low <br /> <br />Low <br /> <br />Low <br /> <br />None <br />Low <br /> <br />Low <br /> <br />None <br /> <br />o <br /> <br />Unknown <br /> <br />Unknown <br /> <br />o <br /> <br />-2 <br /> <br />o <br />o <br /> <br />-1 <br /> <br />-1 <br /> <br />o <br />o <br /> <br />-1 <br /> <br />-1 <br /> <br /> Table Summary of expected impacts (continued) <br /> - <br /> DECOMPOSERS <br /> Silver Effects: Generator Sites <br /> Field Exp. 0 <br /> Lab Study <br /> Decomposition: Tundra Litter 1 <br /> ABIOTIC FACTORS <br /> Geomorphic processes Rock Weathering 2 <br /> Mass Wasting 0 <br /> Soil Erosion 2 <br /> -Kobresia 0 <br /> -Geum 0 <br />..... <br />~ <br /> Development: Subalpine meadow <br /> -Fescue 1 <br /> -Forbs 1 <br /> Subalpine fores~ <br /> -Aspen 0 <br /> -Spruce 0 <br /> Alpine Tundra <br /> -Most Species <br /> Seed Viability and Tundra <br /> Genecology <br />