Vegetation Classification and Mapping Project Report - USGS
Vegetation Classification and Mapping Project Report - USGS
Vegetation Classification and Mapping Project Report - USGS
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<strong>Vegetation</strong> <strong>Classification</strong> <strong>and</strong> Distribution <strong>Mapping</strong> <strong>Report</strong>: Petrified Forest National Park<br />
12a..<br />
12b..<br />
13a..<br />
13b..<br />
14a..<br />
14b..<br />
15a..<br />
15b..<br />
16a..<br />
16b..<br />
17a..<br />
17b..<br />
18a..<br />
.Bouteloua gracilis.is.the.only.dominant.species;.no.other.perennial.herbaceous.species.<br />
codominates....Other.herbaceous.species,.including.annual.species,.may.cover.over.half.of.<br />
the.herbaceous.cover..This.map.class.tends.to.occur.in.various.substrates.<strong>and</strong>.ranges.from.<br />
moderate.to.low.total.vegetation.cover.<br />
•. Base.map.class:.Blue.Grama.Herbaceous.<strong>Vegetation</strong><br />
•. Group.map.class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.Map.Class:.Blue.Grama.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
•. Association:.Bouteloua gracilis.Herbaceous.<strong>Vegetation</strong><br />
.Bouteloua gracilis.is.not.the.only.dominant.species..Other.grass.species.codominate.the.<br />
herbaceous.cover..(13a)<br />
.Herbaceous.cover.is.co-dominated.by.Pleuraphis jamesii..This.map.class.commonly.occurs.on.<br />
s<strong>and</strong>y.soils.<strong>and</strong>.may.have.a.low.cover.of.native.shrubs.<br />
•. Base.map.class:.Blue.Grama.-.Galleta.Herbaceous.<strong>Vegetation</strong><br />
•. Groupmap.class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.map.class:.Blue.Grama.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
•. Association:.Bouteloua gracilis.-.Pleuraphis jamesii Herbaceous.<strong>Vegetation</strong><br />
.Sporobolus airoides.is.the.co-dominant.species..This.map.class.commonly.occurs.on.s<strong>and</strong>y.<br />
soils.<strong>and</strong>.may.have.a.low.cover.of.native.shrubs.<br />
•. Base.Map.Class:.Alkali.Sacaton.-.Blue.Grama.Herbaceous.<strong>Vegetation</strong><br />
•. Group.Map.Class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.Map.Class:.Alkali.Sacaton.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
•. Association:.Sporobolus airoides.-.Bouteloua gracilis.Herbaceous.<strong>Vegetation</strong><br />
Sporobolus airoides.is.the.dominant.or.co-dominant.species..(15a)<br />
Sporobolus airoides.is.not.the.dominant.or.co-dominant.species..(17a)<br />
.Sporobolus airoides.is.the.only.dominant.species..Other.herbaceous.<strong>and</strong>.shrub.species.may.<br />
occur,.but.never.with.significant.cover..This.map.class.tends.to.occur.on.various.substrates.<br />
<strong>and</strong>.ranges.from.fairly.dense.patches.to.low.total.vegetation.cover.<br />
•. Base.map.class:.Alkali.Sacaton.Herbaceous.<strong>Vegetation</strong><br />
•. Group.map.class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.map.class:.Alkali.Sacaton.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
•. Association:.Sporobolus airoides.Southern.Plains.Herbaceous.<strong>Vegetation</strong><br />
.Sporobolus airoides.is.not.the.only.dominant.species...Other.grass.species.codominate.the.<br />
herbaceous.cover..(16a)<br />
.Pleuraphis jamesii is.co-dominant.with.Sporobolus airoides..Commonly.occurs.on.s<strong>and</strong>y.soils.<br />
<strong>and</strong>.may.have.a.low.cover.of.native.shrubs.<br />
•. Base.map.class:.Galleta.-.Alkali.Sacaton.Herbaceous.<strong>Vegetation</strong><br />
•. Group.map.class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.map.class:.Alkali.Sacaton.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
•. Association:.Pleuraphis jamesii -.Sporobolus airoides.Herbaceous.<strong>Vegetation</strong><br />
.Bouteloua gracilis.is.co-dominant.with.Sporobolus airoides..Commonly.occurs.on.a.variety.of.<br />
substrates.<strong>and</strong>.may.have.a.low.cover.of.native.shrubs.<br />
•. Base.map.class:.Alkali.Sacaton.-.Blue.Grama.Herbaceous.<strong>Vegetation</strong><br />
•. Group.map.class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.map.class:.Alkali.Sacaton.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
•. Association:.Sporobolus airoides.-.Bouteloua gracilis.Herbaceous.<strong>Vegetation</strong><br />
Pleuraphis jamesii is.the.dominant.or.co-dominant.species..(18a)<br />
Pleuraphis jamesii is.not.the.dominant.or.co-dominant.species..(20a)<br />
.Bouteloua eriopoda.is.the.next.most.abundant.grass.after.Pleuraphis jamesii,.<strong>and</strong>.in.some.<br />
areas.is.the.two.species.codominate..A.low.cover.of.native.shrubs.may.also.occur.<br />
•. Base.map.class:.Black.Grama.-.Galleta.Herbaceous.<strong>Vegetation</strong><br />
•. Group.map.class:.Inter-Mountain.Basins.Semi-Desert.Grassl<strong>and</strong><br />
•. Management.map.class:.Alkali.Sacaton.Steppe.<strong>and</strong>.Mixed.Grassl<strong>and</strong>s<br />
E4