TY - JOUR
T1 - Effects of fly ash on soil microbial activity
AU - Wong, M. H.
AU - Wong, Jonathan W C
PY - 1986/1
Y1 - 1986/1
N2 - Fly ash was added to a sandy soil and a sandy loam to study its effects on soil microbial respiration. Microbial respiration was reduced with increasing fly ash treatments in the sandy soil, whereas in the sandy loam, a significant depression was only recorded at the highest ash addition for both total and cumulative carbon dioxide evolved. Total carbon dioxide release was actually increased by 3% and 6% ash amendment on the sandy loam. A highly negative correlation was found between respiration and ash treatment for the sandy soil (r = -0·9904, p < 0·005), but not for the sandy loam. Ecological dose 50% (EcD50) values of the sandy soil were smaller than that of the sandy loam for each period. The reasons for this are discussed.
AB - Fly ash was added to a sandy soil and a sandy loam to study its effects on soil microbial respiration. Microbial respiration was reduced with increasing fly ash treatments in the sandy soil, whereas in the sandy loam, a significant depression was only recorded at the highest ash addition for both total and cumulative carbon dioxide evolved. Total carbon dioxide release was actually increased by 3% and 6% ash amendment on the sandy loam. A highly negative correlation was found between respiration and ash treatment for the sandy soil (r = -0·9904, p < 0·005), but not for the sandy loam. Ecological dose 50% (EcD50) values of the sandy soil were smaller than that of the sandy loam for each period. The reasons for this are discussed.
UR - http://www.scopus.com/inward/record.url?scp=0022860197&partnerID=8YFLogxK
U2 - 10.1016/0143-1471(86)90080-2
DO - 10.1016/0143-1471(86)90080-2
M3 - Journal article
AN - SCOPUS:0022860197
SN - 0143-1471
VL - 40
SP - 127
EP - 144
JO - Environmental Pollution. Series A, Ecological and Biological
JF - Environmental Pollution. Series A, Ecological and Biological
IS - 2
ER -