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I~ <br /> <br />RECLAMATION PLAN <br />here takes into account these possible perturbations in the weather patterns <br />and presents corrective actions that could be implemented if bad conditions <br />occur. <br />The revegetatian program is designed around a seed mixture that contains <br />large numbers of native species as well as sane introduced species that have <br />been successful in this area. The seed mixture can either be broadcast or <br />drilled, as circumstances dictate. All of the species are readily available, <br />except in those rare years when a crop failure occurs. In those cases, the <br />seed supplier can usually provide a substitute species that is similar in <br />character to the one desired. <br />In large measure, the key to revegetation success is diversity in the <br />mixture. In most instances a range of cmditions are possible on a particular <br />site. The seed mixture should focus an the selection of species with <br />extensively overlapping tolerance curves, the sum total of which span the <br />possible variations of soil properties and moisture conditions. Native <br />species should be emphasized, but because they are slow to develop introduced <br />species that exhibit only moderate competitiveness should also be included. <br />Seeding rates should be designed for the average conditions and let natural <br />processes select desirable species rn local sites with above or below average <br />conditions. Seeding rates also need to be adjusted to the soil texture. The <br />following seed mixtures have been designed around all of these factors. Two <br />mixtures are presented. One is for drill seeding and me for broadcast <br />seeding. Minor shifts in the amounts of certain species account for the <br />differences. <br />MIXTURE FOR BROADCASTING <br />- ----- ---- ----- ---- <br />SPECIES <br />-------------------- <br />lb PLS/acre seeds/ib <br />seeds/sgft <br />BLUE GRAMA <br />CRSTD WHEAT., EPHRAIM <br />INTERMEDIATE WHEAT. <br />PUBESCENT WHEAT. <br />WESTERN WHEATGRASS <br />SIDEOATS GRAMA <br />YELLOW SWEETCLOVER <br />------------------------ <br />1 711000 <br />4 200000 <br />5 97000 <br />5 90000 <br />5 126000 <br />3 143000 <br />.25 <br />- <br />-- <br />- 260000 <br />--------- <br />---- <br />--- <br />23.25 1627000 <br />16.32 <br />18.37 <br />11.13 <br />10.33 <br />14.46 <br />9.85 <br />1.49 <br />81.96 <br />Page 19 <br />