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2009-01-30_GENERAL DOCUMENTS - C1980005
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2009-01-30_GENERAL DOCUMENTS - C1980005
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Last modified
8/24/2016 3:43:16 PM
Creation date
2/13/2009 3:11:03 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
GENERAL DOCUMENTS
Doc Date
1/30/2009
Doc Name
Nomination for 2009 Excellence in Surface Coal Mining National Reclamation Award
From
Seneca Coal Company
Permit Index Doc Type
General Correspondence
Email Name
SB1
Media Type
D
Archive
No
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primarily due to storage rather than to method of tree removal. Stored soils were observed to be <br />anaerobic. <br />Water Chemistry: <br />White salt deposits were observed around some of the irrigated treatments in 2005, particularly <br />those trees receiving the high irrigation treatment, leading to the question of whether these salts <br />were leached from the re-deposited topsoil, or were present in the irrigation water. The soil <br />chemistry tests conducted included a salinity analysis. Soils analyses confirmed that the soils <br />with the highest rate of irrigation were indeed saline, likely the result of irrigation with saline <br />water. Only clean water was used to irrigate the trees during 2007 to avoid further decline and to <br />see if the trees irrigated with saline water could recover. Root zone soil samples were also <br />submitted to the soils testing laboratory for determination of saturated paste extract conductivity. <br />Root growth: <br />Aspen is a relatively short-lived disease and injury susceptible tree that relies on periodic re- <br />sprouting from lateral roots to maintain its presence on a site (Shepperd 2005). Therefore, the <br />development and lateral extension of new roots is critical for the ultimate survival and re- <br />establishment of any aspen planted on mined lands. We quantified new root development since <br />planting by excavating randomly selected surviving plants during 2007, washing soil from the <br />roots to quantify total root biomass and new root growth. Trees were chosen from each of the <br />different irrigation, soil, and transplant treatments studied. Soil was carefully loosened and roots <br />exposed by washing soil away with a high pressure water jet. Once roots were exposed, the <br />spread of any lateral roots away from the planting site was measured as distance from the tree <br />base and as total length of each root. Root masses were separated by size class and total below- <br />ground biomass dry weight was measured. It is particularly crucial to see if roots have extended <br />beyond the planting hole for transplants or beyond the potting mix for potted aspen. This root <br />extension is necessary for survival of the trees and the ultimate re-establishment of natural aspen <br />clones. Roots must also reach a large enough size, and be close enough to the surface, for <br />suckering. <br />Physiological status: <br />Monitoring of leaf water potential during 2005, a wet growing season, indicated that varying <br />irrigation treatment did not affect leaf water stress condition of the plants. However, additional <br />physiological conditions of the plant that affect growth and survival were unknown. Other <br />physiological conditions, such as stomatal conductance, photosynthesis, and respiration, may <br />show response to drought prior to indication by plant water status; or at the least indicate which <br />trees are stressed and not likely to survive. Therefore, we collected limited additional <br />physiological measurements of the transplants under each irrigation treatment, including <br />photosynthesis, respiration, and transpiration. This would allow a better evaluation of the <br />physiological stress conditions occurring under specific irrigation treatments; and the <br />physiological conditions favorable for survival. <br />. Competing vegetation:
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