Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Effect of Stockpile Storage on Topsoil Characteristics in Arid Climates.

Authors
Froisland-LJ; Tolley-WK; Shirts-MB
Source
For Reference Only At Bureau Libraries :4 pages
Link
NIOSHTIC No.
10005902
Abstract
This report describes an investigation of the changes in soil characteristics in topsoil stockpiled during mining operations. Topsoil stockpiles in arid areas of New Mexico, Utah, and Wyoming were sampled over a 1- to 2-yr period to determine any changes in physical, chemical, or biological parameters in the top 15 ft of soil. Parameters examined in this study included soil moisture, ph, electrical conductivity, and cation exchange capacity; total nitrogen, organic carbon, carbon-to-nitrogen ratio, extractable potassium, and soluble phosphorus levels in the soil; general levels of bacteria activity in the soil; and productivity of the soil as measured by shoot yield in growth tests. Data were analyzed by multiple linear regression to determine possible effects of stockpile age and depth. Bacteria population counts, used as an indicator of general bacterial activity, was the only parameter found to be significantly correlated with stockpile age and depth at more than one site. Bacterial activity increased with depth at the two sites where it was measured. Activity increased with age at one site and decreased with age at the second. Significant changes in soil ph, electrical conductivity, and moisture were significantly correlated with stockpile age and depth at single sites. This study did not show significant, consistent deterioration in soil characteristics or growth yield of topsoil stored in stockpiles.
Publication Date
19870101
Document Type
CP;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
OFR 42-87
NIOSH Division
SLRC;
Source Name
For Reference Only At Bureau Libraries
State
NM; UT; WY;
Performing Organization
BoM SLRC
TOP