Vegetation Classification and Mapping Project Report - USGS

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Appendix C: Global and Local Plant Community Descriptions C.5 Sparse C.5.3. Eriogonum leptophyllum Sparse Vegetation Base map class NatureServe common name NatureServe code Slender.Buckwheat.Sparse.Vegetation Slenderleaf.Wild.Buckwheat.Sparse.Vegetation CEGL004013 Summary: This sparsely vegetated badland 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 1710 to 1770 m (5620-5810 ft). Stands are found on gentle to moderately steep slopes and range between 4 and 65%. This association occurs on various landforms, including lower slopes, sideslopes, midslopes, bajadas, slick rock, buttes, cliffs, and plateaus. Substrates are clays derived from shale. The ground surface has high cover of bare soil. A few stands have surface rocks with substrates including petrified wood, sandstone, and mudstone. The vegetation cover is characterized by generally sparse (
Vegetation Classification and Distribution Mapping Report: Petrified Forest National Park NatureServe conservation status: Distribution: Global rank. GNR (14-Feb-2007). 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. Petrified Forest National Park. Eriogonum leptophyllum Sparse Shrubland was identified from six relevés within Petrified Forest National Park. The association occurred on various landforms, including lower slopes, sideslopes, midslopes, bajadas, slick rock, buttes, cliffs, and plateaus. These relevés were located in the northern wilderness area, east of Tiponi Point, east of Tawa Point, and east of Old Route 66 in the northeastern section. They were also located in the central neck area of park, east of the park road in the badlands, as well as north of the Giant Logs and west of Jim Camp Wash. Environmental summary: Globally. This association has only been described from Petrified Forest National Park. Until further inventory is completed, there is no global information. Petrified Forest National Park. This association occurred between the elevations of 1710 and 1770 m (5620-5810 ft). Slopes ranged from moderate to steep (4-65%, average 21%), with varying aspects. Most the stands occurred in badland areas throughout the project boundary. A few stands had surface rocks with substrates including petrified wood, sandstone, and mudstone. USFWS wetland system: Not applicable. Vegetation description: Globally. This association has only been described from Petrified Forest National Park. Until further inventory is completed, there is no global information. Petrified Forest National Park. Six relevés were classified as Eriogonum leptophyllum Sparse Shrubland, with total vegetation cover ranging from 7 to 23% (average 11%) and consisting of a shrub stratum with 5-17% cover and an herbaceous stratum with 1-5% cover. The species diversity ranged between 11 and 31 species (average 23 species). The vegetation in the shrub layer was dominated by Eriogonum leptophyllum, with between 2 and 4% cover (average 3%). Three species codominated the shrub layer in three distinct relevés, including Eriogonum subreniforme with 4% cover, Sisymbrium altissimum with 3% cover, and Gutierrezia sarothrae with 3% cover. Most abundant species: Stratum Global species PEFO species Short.shrub/ Data are not available. Eriogonum leptophyllum sapling Other noteworthy species: Global species Bromus tectorum PEFO species Bromus tectorum, Sisymbrium altissimum References: Western Ecology Working Group n.d. C106
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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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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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Page 208 and 209: Appendix D Plant species list The s
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Page 237 and 238: Vegetation Classification and Distr
Page 239 and 240: G4 B1 Cottonwood / Rubber Rabbitbru
Page 241 and 242: G6 B3 Blue Sage Dwarf-Shrubland Fig
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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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