Abstract
The establishment of intensively managed woody energy crops on reclaimed surface mine lands provides an opportunity to diversify domestic biomass sources, while increasing the productivity and economic value of underutilized land. Our objective is to test the effect of fertilization and irrigation on the growth, survival, biomass accumulation, biomass allocation, leaf area, and nutrient dynamics of American sycamore (Platanus occidentalis L.) and black locust (Robinia pseudoacacia L.) planted on a reclaimed surface mine. In 2008, replicated plantings of sycamore and black locust were established on the Big Elk mine in eastern Kentucky. Treatments tested include annual granular fertilizer applications of 37 kg N, 30 kg P, and 16 kg K ha-1, irrigation, irrigation + fertilization, and control. Following two growing seasons, American sycamore exhibited significantly (p < 0.05) greater height, diameter, leaf area, and stem biomass in fertilizer treatment compared to all other species and treatment combinations. Treatments had no affect on survival, but American sycamore exhibited significantly higher survival than black locust. Poor locust survival and growth were likely attributed to excessive ungulate browsing. Our findings indicate that fertilizer applications at young plantations on reclaimed mines in Appalachia increases tree height, diameter, and biomass accumulation.
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Claims 6
Claim · model-written summary
Fertilizer treatment increased height and diameter of American sycamore compared with all other species and treatment combinations.
- Taxon
- American sycamore
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Platanus occidentalise0 - Treatment
- fertilizer treatmente0
- Outcome
- height, diametere0
- Direction
- greatere0
- Comparator
- all other species and treatment combinationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Following two growing seasons, American sycamore exhibited significantly (p < 0.05) greater height, diameter, leaf area, and stem biomass in fertilizer treatment compared to all other species and treatment combinations”
Claim · model-written summary
Fertilizer treatment increased leaf area and stem biomass of American sycamore compared with all other species and treatment combinations.
- Taxon
- American sycamorePlatanus occidentalise0
- Treatment
- fertilizer treatmente0
- Outcome
- leaf area, and stem biomasse0
- Direction
- greatere0
- Comparator
- all other species and treatment combinationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following two growing seasons, American sycamore exhibited significantly (p < 0.05) greater height, diameter, leaf area, and stem biomass in fertilizer treatment compared to all other species and treatment combinations”
Claim · model-written summary
American sycamore had significantly higher survival than black locust on the reclaimed mine.
- Taxon
- American sycamorePlatanus occidentalise1
- Outcome
- survivale1
- Direction
- highere1
- Comparator
- black locuste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatments had no affect on survival, but American sycamore exhibited significantly higher survival than black locust”
Claim · model-written summary
Treatments had no effect on survival of the planted trees.
- Taxon
- American sycamorePlatanus occidentalise1
- Treatment
- Treatmentse1
- Outcome
- survivale1
- Direction
- no affecte1
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Treatments had no affect on survival, but American sycamore exhibited significantly higher survival than black locust”
e4“irrigation + fertilization, and control”
Claim · model-written summary
Poor black locust survival and growth were likely attributed to excessive ungulate browsing.
Verbatim
e2“Poor locust survival and growth were likely attributed to excessive ungulate browsing”
Claim · model-written summary
Fertilizer applications increased tree height, diameter and biomass accumulation in young plantations on reclaimed mines in Appalachia.
- Taxon
- treee3
- Treatment
- fertilizer applicationse3
- Outcome
- tree height, diameter, and biomass accumulatione3
- Direction
- increasese3
- Setting
- reclaimed mines in Appalachiae3
Not reportedComparator
Verbatim
e3“Our findings indicate that fertilizer applications at young plantations on reclaimed mines in Appalachia increases tree height, diameter, and biomass accumulation”
The same questions in other papers
fertilization · growth · Platanus occidentalis (American sycamore)Results agree
1 paper in the same direction as this paper
- 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.