Vegetation Classification and Mapping Project Report - USGS

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Appendix E: Plant community and map class key class.is.distinguished.by.its.landform.characteristic.and.occurs.in.areas.of.intermittent.flooding,.such.as.washes,.along.wash.banks,.and.on.wash.terraces..This.map.class.contains.a.mix. of.herbaceous.and.shrub.species..No.one.individual.association.was.determined.to.represent. this.map.class.which.contains.a.complex.of.associations.and.unique.communities..Associations.that.can.occur.in.this.complex.include,.but.are.not.limited.to,.Allenrolfea occidentalis. Shrubland,.Calamovilfa gigantea.Desert.Wash.Shrub.Herbaceous.Vegetation,.Ericameria nauseosa.Desert.Wash.Shrubland,.Ericameria nauseosa./.Bouteloua gracilis.Shrub.Herbaceous.Vegetation,.Isocoma drummondii./.Pleuraphis jamesii Shrubland,.Salix exigua./.Barren. Shrubland,.Sarcobatus vermiculatus./.Atriplex obovata.Shrubland,.Sarcobatus vermiculatus./. Suaeda moquinii.Shrubland,.Suaeda moquinii.Shrubland,.Tamarix.spp..Semi-Natural.Temporarily.Flooded.Shrubland..This.map.class.contains.a.mix.of.species.and.associations.and.was. defined.as.a.heterogeneous.group.of.associations.. •. Base.map.class:.Vegetated.Wash.Complex •. Group.map.class:.Inter-Mountain.Basins.Wash •. Management.map.class:.Vegetated.Wash.Complex •. Association:.NA Key C: Woodlands Trees.are.the.dominant.lifeform..Total.vegetation.cover.is.generally.>10%.cover,.except.in.dry.sites. where.vegetation.cover.can.be.as.low.as.2%.cover..Trees.dominate.the.woodlands.and.generally. have.>10%.canopy.cover..If.shrub.cover.is.more.than.tree.cover,.go.to.Key.D:.Shrubs. 29a.. 29b... 30a.. 30b.. .Juniperus monosperma.dominates.the.tree.species..Juniperus monosperma.is.a.short.tree. that.tends.to.have.a.tall.shrub-like.appearance.and.occurs.in.low.density..Artemisia bigelovii.typically.occurs.as.an.indicator.species.in.the.understory.of.this.map.class..Occasionally. Artemisia bigelovii.dominates.the.understory,.but.it.does.not.have.to.occur..The.understory. typically.consists.of.a.sparse.cover.of.shrub.and.herbaceous.species. •. Base.map.class:.One-seed.Juniper./.Bigelow’s.Sagebrush.Shrubland •. Group.map.class:.Colorado.Plateau.Pinyon-Juniper.Woodland •. Management.map.class:.One-seed.Juniper./.Bigelow’s.Sagebrush.Shrubland •. Association:.Juniperus monosperma./.Artemisia bigelovii.Woodland Tree.species.not.as.above..(30a) .Tree.species.are.dominated.by.Pinus edulis.and/or.Juniperus osteosperma..Both.of.these.tree. species.occur.in.low.densities..The.understory.tends.to.have.a.low.cover.of.herbaceous.and. shrub.species..The.herbaceous.cover.often.consists.of.a.low.to.moderate.cover.of.Bouteloua gracilis..This.map.class.is.restricted.to.the.higher.elevations.of.the.northern.half.of.the.project.boundary.. •. Association:.Pinus edulis.-.(Juniperus osteosperma)./.Bouteloua gracilis.Woodland .Populus fremontii.is.the.dominant.tree.species..Ericameria nauseosa.commonly.occurs.as.a. tall.shrub.in.the.understory..This.community.is.restricted.to.areas.with.intermittent.stream. flow.and.mostly.commonly.occurs.along.the.banks.of.the.Puerco.River. •. Base.map.class:.Cottonwood./.Rubber.Rabbitbrush.Woodland •. Group.map.class:.Inter-Mountain.Basins.Riparian.Woodland.and.Shrubland •. Management.map.class:.Cottonwood./.Rubber.Rabbitbrush.Woodland •. Association:.Populus fremontii./.Ericameria nauseosa.Woodland Key D: Shrublands Shrubs.are.the.dominant.lifeform..Total.vegetation.cover.is.generally.>10%.cover;.in.particularly.dry. sites.vegetation.cover.can.be.as.low.as.2%.cover..Tree.cover.is.less.than.the.total.shrub.cover.and.
Vegetation Classification and Distribution Mapping Report: Petrified Forest National Park 31a.. 31b.. 32a.. 32b.. 33a.. 33b.. 34a.. 34b.. 35a.. 35b.. 36a.. 36b.. 37a.. 37b.. .A.mix.of.shrub.species.occurring.on.a.mesa.rim.or.on/near.a.wash..First.go.to.32a.and.try.to. select.the.appropriate.map.class..If.none.of.the.map.classes.work,.proceed.to.56a. Shrub.species.not.as.above..(32a) .Artemisia bigelovii.and/or.Ephedra torreyana.are.either.dominant.or.co-dominant.shrubs.. This.map.class.occurs.throughout.the.mapping.area.and.more.commonly.occurs.on.or.near. sandstone..If.Purshia stansburiana.is.also.present.with.2%.cover,.go.to.42a. •. Base.map.class:.-.Torrey’s.Jointfir.-.Bigelow’s.Sagebrush.Sparse.Vegetation •. Group.map.class:.Inter-Mountain.Basins.Semi-Desert.Shrub-Steppe •. Management.map.class:.Vegetated.Rim.Complex •. Association:.Ephedra torreyana.-.Artemisia bigelovii.Sparse.Vegetation Dominant.shrub.species.not.as.above..(33a) Artemisia filifolia.is.the.dominant.shrub.species..(34a). Dominant.shrub.species.not.as.above..(35a) .Artemisia filifolia.is.the.dominant.shrub.species..The.understory.is.a.mix.of.shrub.and.herbaceous.species..This.map.class.occurs.commonly.throughout.the.park,.typically.on.sandy.soils. or.sand.dunes. •. Base.map.class:.Sandsage.Colorado.Plateau.Shrubland •. Group.map.class:.Southern.Colorado.Plateau.Sand.Shrubland •. Management.map.class:.Sandsage.-.Fourwing.Saltbush.Colorado.Plateau.Shrubland •. Association:.Artemisia filifolia.Colorado.Plateau.Shrubland .Artemisia filifolia.is.the.dominant.shrub.species..The.understory.is.dominated.by.the.native. grass.Bouteloua eriopoda..This.map.class.is.restricted.to.a.few.areas.in.the.park..Where.it. occurred,.it.was.mapped.as.part.of.the.polygon.describing.the.vegetation.surrounding.it. •. Association:.Artemisia filifolia./.Bouteloua eriopoda.Shrubland .Atriplex canescens.is.the.dominant.shrub..Other.shrub.species.can.also.be.present,.such.as. Ericameria nauseosa,.Gutierrezia sarothrae,.and.Artemisia bigelovii..The.understory.consists. of.a.mix.of.native.grasses..Pleuraphis jamesii often.occurs.in.the.understory,.but.does.not. have.to.occur..Bouteloua gracilis.and.Sporobolus airoides.are.also.common.grasses.in.the.understory..This.map.class.occurs.throughout.the.project.boundary.and.on.various.substrates,. ranging.from.clay.to.sandy.soils.and.sand.dunes.. •. Base.map.class:.Four-wing.Saltbush./.Galleta.Shrubland •. Group.map.class:.Southern.Colorado.Plateau.Sand.Shrubland •. Management.map.class:.Sandsage.-.Fourwing.Saltbush.Colorado.Plateau.Shrubland •. Association:.Atriplex canescens./.Pleuraphis jamesii Shrubland Dominant.shrub.species.not.as.above..(36a) Ericameria nauseosa.is.the.dominant.shrub.species..(37a) Dominant.shrub.species.not.as.above..(38a) .Ericameria nauseosa.is.the.dominant.shrub.species.and.occurs.as.a.tall.shrub.(generally.at. least.1m.tall)..The.shrubs.often.occur.in.large.patches.along.the.banks.of.washes.and.rivers. •. Base.map.class:.Rubber.Rabbitbrush.Desert.Wash.Shrubland •. Group.map.class:.Inter-Mountain.Basins.Wash •. Management.map.class:.Vegetated.Wash.Complex •. Association:.Ericameria nauseosa.Desert.Wash.Shrubland .Ericameria nauseosa.is.the.dominant.shrub.and.it.typically.has.a.short-statured.growth.form. (generally.less.than.1m.tall)..The.understory.can.consist.of.other.shrub.and.herbaceous.species..component..This.map.class.occurs.on.a.variety.of.upland.environments,.including.sand. dune.and.mesa.tops.. •. Base.map.class:.Rubber.Rabbitbrush./.Blue.Grama.Shrub.Herbaceous.Vegetation •. Group.map.class:.Inter-Mountain.Basins.Active.and.Stabilized.Dune •. Management.map.class:.Alkali.Sacaton.Steppe.and.Mixed.Grasslands •. Association:.Ericameria nauseosa./.Bouteloua gracilis.Shrub.Herbaceous.Vegetation E8
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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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Page 174 and 175: 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 218 and 219: Appendix E Plant community and map
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Page 230 and 231: Appendix F Plant community and map
Page 232 and 233: F3 Appendix F continued Plant commu
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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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Page 245 and 246: G10 B7 Drummond Goldenweed - Gallet
Page 247 and 248: G12 B9 Greasewood / New Mexico Salt
Page 249 and 250: G14 B11 Iodine Bush Shrubland Figur
Page 251 and 252: G16 B13 Sandsage Colorado Plateau S
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Page 257 and 258: G22 B19 Alkali Sacaton - Blue Grama
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Page 261 and 262: G26 B23 Galleta - Alkali Sacaton He
Page 263 and 264: G28 B25 New Mexico Saltbush / Alkal
Page 265 and 266: G30 B27 Russian Thistle Sand Dune V
Page 267 and 268: G32 B29 Arizona Siltbush Sparse Veg
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Page 271 and 272: G36 B33 Airstrip Figure.G65..Photos
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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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