Abstract
Salt-impacted soils are formed through anthropogenic or natural causes. In the northern Great Plains region of North America, salts that occur in the soil parent materials move upward through the soil profile due to changing land-use and precipitation regimes. If these salts accumulate in the surface soil layer, they impact the ecological integrity of a site, creating the need for ecological restoration. Common methods for addressing salt-impacted soil were developed in the irrigated soils of the southwestern United States and are often ineffective in noncrop areas and the northern Great Plains due to differences in soil properties, elevated gypsum concentrations, and poor soil drainage. Therefore, the objective of this study was to identify native plant species suited for revegetation in salt-impacted soils in the northern Great Plains region of North America. This field study evaluated the survival and performance of eight native plant species in soils with high, medium, or low salt concentrations. Survival was evaluated at summer and end-of-season sampling (five months total) and performance variables (plant height, basal diameter, number of flowering heads, number of tillers/stems, and aboveground biomass) were evaluated at end-of-season sampling. Seven of the eight species evaluated exhibited some salt tolerance and could be suitable for the revegetation of moderately salt-impacted soil. Overall, Asclepias speciosa, Gaillardia aristata, and Helianthus maximiliani grew in minimally salt-impacted soils, whereas Elymus canadensis, Elymus trachycaulus, and Pascopyrum smithii grew in moderately salt-impacted soils, and only Sporobolus airoides grew in highly salt-impacted soils. As these native plants establish and grow, they will spur autogenic recovery by stabilizing soil structure and improving water movement in the soil. These results indicate that salt tolerance must be considered when selecting species that could revegetate these areas.
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Claims 6
Claim · model-written summary
Seven of the eight native plant species showed some salt tolerance.
Verbatim
e1“evaluated the survival and performance of eight native plant species in soils with high, medium, or low salt concentrations”
e2“Seven of the eight species evaluated exhibited some salt tolerance”
Claim · model-written summary
The native species could be suitable for revegetating moderately salt-impacted soil.
Verbatim
e1“evaluated the survival and performance of eight native plant species in soils with high, medium, or low salt concentrations”
e3“could be suitable for the revegetation of moderately salt-impacted soil”
Claim · model-written summary
Asclepias speciosa, Gaillardia aristata and Helianthus maximiliani grew in minimally salt-impacted soils.
- Taxon
- Asclepias speciosa, Gaillardia aristata, and Helianthus maximiliani
Gaillardia aristata
Helianthus maximiliani
Asclepias speciosae4 - Outcome
- grewe4
- Setting
- minimally salt-impacted soilse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Asclepias speciosa, Gaillardia aristata, and Helianthus maximiliani grew in minimally salt-impacted soils”
Claim · model-written summary
Elymus canadensis, Elymus trachycaulus and Pascopyrum smithii grew in moderately salt-impacted soils.
- Taxon
- Elymus canadensis, Elymus trachycaulus, and Pascopyrum smithii
Elymus canadensis
Elymus trachycaulus
Pascopyrum smithiie5 - Outcome
- grewe5
- Setting
- moderately salt-impacted soilse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Elymus canadensis, Elymus trachycaulus, and Pascopyrum smithii grew in moderately salt-impacted soils”
Claim · model-written summary
Sporobolus airoides was the only species that grew in highly salt-impacted soils.
- Taxon
- Sporobolus airoides
.jpg?width=60)
Sporobolus airoidese6 - Outcome
- grewe6
- Qualifier
- onlye6
- Setting
- highly salt-impacted soilse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e6“only Sporobolus airoides grew in highly salt-impacted soils”
Claim · model-written summary
Salt tolerance must be considered when selecting native species for revegetation.
Verbatim
t0“Investigation of native plants”
e7“salt tolerance must be considered when selecting species that could revegetate these areas”