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<br />Daub & Associates, Inc. Page 3-65 2015 NS Mine Plan Modification <br />1/5/2016 Section 3 General Site Conditions <br />Plant Species (a) <br />Cover (b) Prod. (c) Density (d) Cover (b) Prod. (c) Density (d) <br />Trees (e) <br />Juniperus osteosperma 0.2 0.6 <br />Pinus edulis 0.4 <br />Shrubs and Half Shrubs <br />Artemisia tridentata 25.6 187.4 12,000 6.0 19.8 2,000 <br />Ceratoides lanata 0.4 <br />Chrysothamnus nauseosus 0.6 0.4 27.9 1,000 <br />Chrysothamnus viscidiflorus 1.0 <br />Eriogonum lonchophyllum 0.4 <br />Gutierrezia sarothrae 0.6 0,4 <br />Purshia tridentata 4.2 21.8 2,000 <br />Sarcobatus vermiculatus 2.0 <br />Tetradymia canescens 0.2 <br />TOTAL 31.0 187.4 12,000 12.0 69.5 5,000 <br />Forbs <br />Antennaria rosea 0.2 <br />Arenaria eastwoodiae 0.2 <br />Astragalus convallarius 0.4 0.2 <br />Astragalus spatulatus 0.2 <br />Chaenactis douglasii 0.8 <br />Comandra umbellata 0.2 <br />Cryptantha serica 0.2 0.4 <br />Euphorbia robusta 0.2 0.2 <br />Gilia congesta 0.2 <br />Haplopappus nuttallii 1.0 <br />Hedysarum boreale 1.0 <br />Hymenoxys acaulis 0.4 <br />Lupinus argenteus 0.4 0.4 <br />Phlox hoodii 1.4 0.6 <br />Sphaeralcea coccinea 0.2 <br />TOTAL 4.6 4.2 <br />Graminoids <br />Agropyron dasystachyum 0.4 0.2 <br />Agropyron smithii 3.6 <br />Agropyron spicatum 3.8 <br />Agropyron trachycaulum 2.4 <br />Bouteloua gracilis 0.2 0.6 <br />Bromus tectorum 4.4 <br />Carex geyeri 0.2 0.8 <br />Koeleria macrantha 6.0 0.8 <br />Oryzopsis hymenoides 1.8 2.8 <br />Poa secunda 2.0 0.6 <br />Sitanion hystrix 0.6 <br />Stripa comata 3.6 0.2 <br />TOTAL 26.0 9.0 <br />(a) Nomenclature follows Harrington, H.D. 1964. Manual of the Plants of Colorado. <br />(b) Percent cover of plant species <br />(c) Estimated productivity for shrub species (kg/ha). <br />(d) Shrub density (stems/ha). <br />(e) Tree cover was only determined in the shrub layer, no canopy coverage was determined. <br />Pinyon-Juniper WoodlandBig Sagebrush Shrubland <br />COVER, PRODUCTIVITY AND DENSITY OF SAMPLED PLANT SPECIES, <br />NATURAL SODA SOLUTION MINING-NAHCOLITE PROJECT <br />RIO BLANCO COUNTY, COLORADO <br /> <br />Table 3-19. Cover, productivity and density of sampled plant species on the Natural Soda LLC <br />solution mining-nahcolite project lands.