Abstract
(Under the Direction of Ronald L. Hendrick) Fire suppression and southern pine beetle (Dendroctonus frontalis Zimm.) outbreaks have contributed to the decline of native shortleaf pine (Pinus echinata Mill.)- bluestem grass (Andropogon gerardii Vitman and Schizachyrium scoparium (Michx.) Nash) communities in the southern Appalachians. We evaluated the effects of herbicide application (nursery) and selective felling and prescribed burning (field) on planted shortleaf pine seedling growth and survival and broadcasted bluestem grass seed establishment and cover. Greatest shortleaf pine growth occurred within the fell with burn treatment and the herbicide application treatments. Soil moisture and aspect influenced seedling survival while maximum flame temperature and overstory mortality influenced bluestem grass presence. Greatest big bluestem cover occurred within the shortleaf pine- bluestem grass herbicide treatment and greatest little bluestem cover occurred within the bluestem grass treatment. Herbicide application and felling with prescribed burning may be used to increase shortleaf pine growth rates while promoting the establishment of bluestem grasses.
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Claims 9
Claim · model-written summary
Shortleaf pine growth was greatest under felling with burning.
- Taxon
- shortleaf pine
Pinus echinatae0 - Treatment
- fell with burn treatmente0
- Outcome
- shortleaf pine growthe0
- Direction
- Greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greatest shortleaf pine growth occurred within the fell with burn treatment and the herbicide application treatments”
Claim · model-written summary
Shortleaf pine growth was greatest under herbicide application.
- Taxon
- shortleaf pinePinus echinatae0
- Treatment
- herbicide application treatmentse0
- Outcome
- shortleaf pine growthe0
- Direction
- Greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greatest shortleaf pine growth occurred within the fell with burn treatment and the herbicide application treatments”
Claim · model-written summary
Soil moisture influenced shortleaf pine seedling survival.
- Taxon
- shortleaf pinePinus echinatat0
- Outcome
- seedling survivale0
- Setting
- Soil moisturee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil moisture and aspect influenced seedling survival”
t0“shortleaf pine”
Claim · model-written summary
Aspect influenced shortleaf pine seedling survival.
- Taxon
- shortleaf pinePinus echinatat0
- Outcome
- seedling survivale0
- Setting
- aspecte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil moisture and aspect influenced seedling survival”
t0“shortleaf pine”
Claim · model-written summary
Maximum flame temperature influenced bluestem grass presence.
Not reportedDirection
Verbatim
e0“maximum flame temperature and overstory mortality influenced bluestem grass presence”
Claim · model-written summary
Overstory mortality influenced bluestem grass presence.
Not reportedDirection
Verbatim
e0“maximum flame temperature and overstory mortality influenced bluestem grass presence”
Claim · model-written summary
Big bluestem cover was greatest under the shortleaf pine and bluestem grass herbicide treatment.
- Taxon
- big bluesteme0
- Treatment
- shortleaf pine- bluestem grass herbicide treatmente0
- Outcome
- big bluestem covere0
- Direction
- Greateste0
Not reportedComparator
Verbatim
e0“Greatest big bluestem cover occurred within the shortleaf pine- bluestem grass herbicide treatment”
Claim · model-written summary
Little bluestem cover was greatest under the bluestem grass treatment.
- Taxon
- little bluesteme0
- Treatment
- bluestem grass treatmente0
- Outcome
- little bluestem covere0
- Direction
- greateste0
Not reportedComparator
Verbatim
e0“greatest little bluestem cover occurred within the bluestem grass treatment”
Claim · model-written summary
Herbicide application or felling with prescribed burning may increase shortleaf pine growth while promoting bluestem establishment.
- Taxon
- shortleaf pinePinus echinatae0
- Outcome
- increase shortleaf pine growth rates while promoting the establishment of bluestem grassese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide application and felling with prescribed burning may be used to increase shortleaf pine growth rates while promoting the establishment of bluestem grasses”
The same questions in other papers
herbicide · growth · Pinus echinata (shortleaf pine)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
fire · growth · Pinus echinata (shortleaf pine)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.