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Kennecott Energy, Colowyo Coal Company, L.P. .lone, 2000 <br />2000 Revegetation Monitoring Data <br />East and West Pit Reclaimed Areas <br />Herbaceous Frequency/Density Relationships -Top Twenty Species <br />Number Species Hits Frequency Density <br />1 Thlaspi arvense 188 69-75-80 1.171-1.386-1.609 <br />2 Bromus marginatus 110 38-44-50 .478-.580-.693 <br />3 Onobrychis viciaefolia 103 35-41-47 .431-.528-.635 <br />4 Agropyron species 76 24-30-36 .273-.357-.446 <br />5 Bromus species 74 24-30-36 .273-.357-.446 <br />6 Bromus japonicus 72 23-29-35 .261-.343-.431 <br />7 Salsota iberica 69 22-28-34 .248-.329-.416 <br />8 Cirsium vulgar 66 20-26-32 .223-.301-.386 <br />9 Linum lewisii 59 19-24-30 .211-.273-.357 <br />10 Polygonum erectum 58 18-23-29 .198-.261-.343 <br />11 Chenopodium mutate 45 13-18-23 .139-.198-.261 <br />12 Bromus tectorum 28 7-11-16 .073-.117-.174 <br />13 Lactuca serriola 28 7-11-16 .073-.117-.174 <br />14 Lappula occidentalis 27 7-11-16 .073-.117-.174 <br />15 Unknown annuals 27 7-11-16 .073-.117-.174 <br />16 Cynoglossum officinale 25 7-10-14 .073-.105-.151 <br />17 Stellaria jamesiana 25 7-10-14 .073-.i05-.151 <br />18 Bromus inermis 19 5-8-12 .051-.083-.128 <br />19 Chenopodium berlandieri 17 4-7-11 .041-.073-.117 <br />20 Polygonum douglasii 17 4-7-11 .041-.073-.117 <br />Notes: <br />1 Using a 60x60cm frame tossed 250 times, number of species occurances in frames are recorded. <br />2 Occurances/250 =frequency presented within a 95 °kconfidenee interval. <br />3 Density numbers are then determined by applying the frequency numbers to the attached Frequency- <br />Density Relationship table. <br />