Vegetation Classification and Mapping Project Report - USGS

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Appendix C: Global and local plant community descriptions Other noteworthy species: Global species Data are not available. PEFO species Data are not available. References: Bourgeron and Engelking 1994, Bradley et al. 1992, CONHP unpubl. data 2003, Driscoll et al. 1984, Dwyer and Pieper 1967, Fisser 1970, Fisser et al. 1965, Hansen et al. 2004a, Hansen et al. 2004c, Muldavin et al. 2000b, Pieper 1968, Western Ecology Working Group n.d., Williams 1961, Zimmerman 1967 C75
Vegetation Classification and Distribution Mapping Report: Petrified Forest National Park C.4 Herbaceous C.4.5. Calamovilfa gigantea Desert Wash Shrub Herbaceous Vegetation Base map class NatureServe common name NatureServe code Giant.Sandreed.Desert.Wash.Shrub.Herbaceous.Vegetation Big.Sandreed.Desert.Wash.Shrub.Herbaceous.Vegetation CEGL004012 Summary: This vegetated wash association occurs at Petrified Forest National Park in northern Arizona and likely occurs elsewhere in the southern Colorado Plateau. Elevations at the national park range from 1650 to 1680 m (5400-5500 ft). Stands occur in or near gently sloping washes that experience periodic streamflow. The substrate is mixed alluvium, sometimes with a surface layer of rocks derived from sandstone, petrified wood, and mixed gravel. The vegetation cover is characterized by a relatively diverse (21 to 42 species) and open canopy that ranges from 17 to 23% total cover. The vegetation cover is composed of an open herbaceaous layer (9-14% cover) dominated by the tall graminoid, Calamovilfa gigantea (5-9% cover). Scattered shrubs such as Ericameria nauseosa (2-3% cover) are present, with total shrub cover of 6-9%. Classification confidence: 3 - Weak. Classification comments: Globally. Data are not available. Petrified Forest National Park. This association had a similar composition and environment as Ericameria nauseosa Desert Wash Shrubland (CEGL002261), except that it had a higher cover of the grass Calamovilfa gigantea. Vegetation hierarchy: Physiognomic class V Herbaceous.Vegetation Physiognomic subclass V.A. Perennial.graminoid.vegetation Physiognomic group V.A.5. Temperate.or.subpolar.grassland Physiognomic subgroup V.A.5.N. Natural/Semi-natural.temperate.or.subpolar.grassland Formation name V.A.5.N.a. Tall.sod.temperate.or.subpolar.grassland Alliance name Calamovilfa gigantea.Herbaceous.Alliance.(A.2680),.Big. Sandreed.Herbaceous.Alliance Ecological systems placement: Ecological system unique ID CES304.781 Ecological system name Inter-Mountain.Basins.Wash NatureServe conservation status: Global rank. GNR (14-Feb-2007) Distribution: Globally. This association has only been described from Petrified Forest National Park in northeastern Arizona and likely occurs elsewhere in the Painted Desert of the southern Colorado Plateau. Until further inventory is completed, there is no global information. C76
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National Park Service U.S. Departme
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Vegetation Classification and Distr
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The National Park Service, Natural
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Acronyms and Abbreviations AA ac AP
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Executive Summary The classificatio
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Acknowledgments Behind the authors
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Axis 3 Axis 2 Vegetation Classifica
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20 Table 5. continued Plant communi
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40 Table 13. Base map class summary
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46 Table 16. Summary statistics for
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56 Table 22. Summary statistics for
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Literature Cited ties: Terrestrial
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B2 Appendix B Plant Community 2003
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B4 Appendix B .continued Plant Comm
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Appendix C: Global and local plant
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D9 Appendix D continued Scientific
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Appendix E Plant community and map
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Appendix E: Plant community and map
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Appendix F Plant community and map
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F3 Appendix F continued Plant commu
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Appendix F continued Plant communit
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G4 B1 Cottonwood / Rubber Rabbitbru
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G6 B3 Blue Sage Dwarf-Shrubland Fig
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G8 B5 Copperweed - Alkali Sacaton S
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G10 B7 Drummond Goldenweed - Gallet
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G12 B9 Greasewood / New Mexico Salt
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G14 B11 Iodine Bush Shrubland Figur
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G16 B13 Sandsage Colorado Plateau S
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G18 B15 Tamarisk Shrubland Figure.G
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G20 B17 Winter-fat / Blue Grama Dwa
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G22 B19 Alkali Sacaton - Blue Grama
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G24 B21 Blue Grama Herbaceous Veget
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G26 B23 Galleta - Alkali Sacaton He
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G28 B25 New Mexico Saltbush / Alkal
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G30 B27 Russian Thistle Sand Dune V
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G32 B29 Arizona Siltbush Sparse Veg
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G34 B31 Slender Buckwheat Sparse Ve
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G36 B33 Airstrip Figure.G65..Photos
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G38 B35 Barren Wash Figure.G68..Gro
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G40 B37 Park Sites Figure.G71..Phot
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G42 B39 Residences Figure.G73..Phot
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G44 B41 Run-off Control Feature Fig
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G46 B43 Stock Ponds Figure.G77..Pho
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G48 B45 Vegetated Wash Complex Figu
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Appendix H: Accuracy Assessment Dat
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Table H-4. Contingency table: Manag
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The Department of the Interior prot
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