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<br />VEGETATIONAL ISSUES - HIGH-ELEVATION SITES <br /> <br /> Vegetational <br /> Inue Snow Meadow Low-Elevation Forest Decomposition Nutrient Pests and <br /> Agency of \ Distribution Productivity Producti vity Productivity Lois Diseases <br /> CKange <br /> More Wat:,r 2 2 2 3 1 2 2 <br /> Snow <br />'t Duration 1 2 3 3 2 1 2 <br />. <br />II <br />~ <br />- <br />0 <br />II Air & Water <br />i Temperature 2 2 2 2 2 2 <br />on <br /> Silver 2 2 2 1 <br /> Level of <br /> Concern 1 2 2 3 2 2 2 <br /> <br />'! i <br /> <br />Level of Concern <br />1. Low <br />2 - Moderate <br />3. High <br /> <br />State of the Art <br />1. Method. or data unavailable <br />2. Mostly empirical, uncertain <br />3. Well.developed, deterministic <br /> <br />Figure 3,-Vegetational issues at high elevation sites. <br /> <br />Animals (Dr. Harold Steinhoff, Convener) <br /> <br />Assumptions were made that snowpack augmentation would reach 30 percent, except for <br />cutbacks in seasons with abnormally heavy snowfall, without change in the pattern of snow <br />distribution and only micro scale effects on temperature connected with longer duration of snow <br />cover, with corresponding shortening of the growing season. Offsite use of the added melt water <br />was presumed. For summer-convective rain augmentation, the same 30 percent increase was <br />assumed, except for seasons with abnormally heavy natural rainfall, with no effect on severe local <br />storms or hail. <br />In making the analysis, species selected for their importance were considered the receptors of <br />environmental impact. Agencies of change were seen to proceed 'through an effects web from the <br /> <br />~ <br /> <br />, <br /> <br />8 <br />