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Table 1. Vegemtion cover, production and woody stem densities on disturbed (posimine) and undisturbed drainages at Trapper Mine in 1988, 1989, and 1990 <br /> <br />Reconstructed Drainage (t)(2) Herbaceous Canopy Cwer (%) <br />Irrigated(3) Non-Irtigated <br />1988 1989 1990 1988 1989 <br /> <br />1990 Herbaceous Production (Ibs/acre) <br />Irrigated Non-Irrigated <br />1988 1989 1990 1988 1989 <br /> <br />1990 Woody Stem Density (stems/aae) <br />Irrigated Non-Irrigated <br />1988 1989 1990 1988 1989 <br /> <br />1990 <br />Upper Coyote (topsoiled) 32 6l 60 246 466 1056 3l4 628 L03S <br />Middle Coyote ([opsoiled) 46 74 60 1003 583 902 3l4 628 1035 <br />Lower Coyote (topsoiled) 51 79 64 1835 1069 1898 628 1256 1663 <br />Upper West No Name 36 74 53 725 1365 168 626 1663 1256 <br />(topsoiled) <br />Lower West No Name 50 75 67 1687 3424 176 628 1663 1256 <br />([opsoiled) <br />Upper Fast No Name 24 44 52 210 240 1522 314 628 1035 <br />(not [opsoiled) <br />Lower East No Name 33 40 69 426 236 1732 628 626 1035 <br />(not lopsoiled) <br />Johnson tributary (topsoiled) 39 24 69 772 (5) 1800 <br />(brush matting) <br />Middle Johnson (topsoil)(7) 80 2009 550 <br />Lower Johnson (topsoil)(7) 65 2338 550 <br />Upper East Bunard SI I682 550 <br />(topsoiled)(7) <br />Lower East Bullard 66 3115 550 <br />(topsoiled)(7) <br />Undisturbed Drainage(4) <br />Upper Flume 63 (6) 55 694 (6) 811 7223 - - <br />LowerFlume 80 69 75 3191 521 2446 2552 - - <br />(1) Drainageways regraded, topsoiled and drill seeded in lase summer 1987. <br />(2) Woody stem density comprised of Amelanchier alnifolia (Saskatoon Setviceberry), Crataeeus ~ (Hawthorn), Populus an]!usti[olia (Narrowleaf Cottonwood) Prunus amerirana <br />(American Plum), Prunus vir¢iniana (Common Chok«herry), Ribes aureum (Golden Curren[), Rcaa woodsii (Wood's Rose), Salix vilalina (Golden Willow), and SymphoricarDUs <br />oreoohilus (Mountain Snowberty). <br />(3) Drainage segments irrigated in 1988 may not have been in 1989 due to pit dewatering activity or drying o[ natural springs. <br />(4) Woody stem density comprised of Amelanchier alnifolia (Saskatoon Serviceberty), Anemisia Cana (Silver Sagebrush), Artemisia Iridentata (Big Sagebrush), Chrysathamnus <br />viscidillorus (Low Rabbitbrvsh), Prunus virciniana (Common Chokecherry), uercus ag mbelii (Gambel Oak), Rosa Woodsii (Wood's Rase), Svmphorirarous oreoohilus <br />(Mountain Snowberry). <br />(5) Samples not taken. <br />(6) Samples not wken as area was severely impacted by drought and livest«k grazing. <br />(7) Drainageways regraded, topsoiled and drill seeded in Tate summer 1969. <br />Wpb 9ry0 (AWARDIA~ <br />• <br />• <br />