Effects of hardwood bark, wood fiber and straw mulches on temperature and moisture content of mine spoils

Conference · Mon Dec 01 04:00:00 EST 1980 · Univ. Ky., Off. Eng. Serv., (Bull.); (United States)

OSTI ID:5288339

Wittwer, R F; Carpenter, S B; Graves, D H

Spoil temperatures at 7.5, 15, and 30 cm depths and spoil moisture content at 15, 30, 60, 90 and 120 cm depths were measured under various mulching treatments on north- and south-slope sites during the growing season. Temperatures were measured with Soiltest Standard Soil Moisture-Temperature Cells and moisture was determined with a neutron probe. Mulching materials evaluated were: hardwood bark (5.0 cm depth), wood fiber mulch (1.7 mt/ha), wood fiber mulch with a latex binder (1.7 mt/ha) and straw (3.4 mt/ha) held in place by erosion netting. Temperatures near the surface (7.5 cm depth) under the various mulches generally ranked in the order: control > wood fiber = straw > bark. Temperatures on the south slope averaged about 1/sup 0/C higher. The maximum temperature observed (34/sup 0/C) was in an unmulched control plot on the south slope in June. Moisture content at 15 cm for the various mulches generally ranked in the order: bark > wood fiber = straw > control.

• Research Organization: Univ. of Kentucky, Lexington
• OSTI ID: 5288339
• Report Number(s): CONF-801263-
• Conference Information: Journal Name: Univ. Ky., Off. Eng. Serv., (Bull.); (United States)
• Country of Publication: United States
• Language: English

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COAL MINING
COMPARATIVE EVALUATIONS
DATA
EXPERIMENTAL DATA
FEDERAL REGION IV
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USA