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<br />Because of the variability of the climate and the lack of unseeded sites, <br />one cannot evaluate the ii'Ilpact on the ecological parameters wi.th normal <br />plot studies. Instead, one GUst first evaluate the natural cl~~te, <br />its variability and other factors, and then by sllnulation estL~te the <br />change augmentation \....ould produce in added length of ti.rrre snow remains <br />on the land, effect on snm.; hydrology, floods, etc. We have completed <br />a portion of this "\o.urk and I will rep-ort on this presently. <br /> <br />Kith this base, one then can bring together teams of specialists in a <br />discipline and ask for their best estimate of the anticipated precipitation- <br />snO\\'-pack change induced in their area of interest by weather modification. <br /> <br />Cooper recommended studies on effects of seeding in several ecological <br />areas. l\e have held week-long "\o.urkshops in several of these areas as <br />follm.;s: <br /> <br />a. Effects of w~ather modification upon forest L~ects and <br />diseases. <br /> <br />It \....as the consensus of the workshop participants that <br />little or no discernible effects could be expected or <br />measured considering the varied climate of the Sierra <br />Nevada. <br /> <br />b. Effects of weather raodification upon vegetation, includ- <br />ing rare and endangered plants. <br /> <br />Workshop participants could see no area of impact, except <br />that perhaps in a series of dry years, weather modifica- <br />tion might serve to keep ''wet'' meadov."5 wet enough to <br />prevent, or slow down, invasion of pine. <br /> <br />c. Effects of '....eather modification upon deer and their <br />habitat. <br /> <br />-17- <br />