期刊
SOIL BIOLOGY & BIOCHEMISTRY
卷 34, 期 1, 页码 121-124出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0038-0717(01)00150-X
关键词
microbial biomass; heavy metals; respiration; specific respiration
类别
Previous work has reported adverse effects of long-term exposures of heavy metals (e.g. Cu, Ni, Cd and Zn) on soil microbial biomass (up to 50% decrease) and microbial activity at metal concentrations around current European Union permitted limits. Our aim was to see if we could model such changes in short-term (up to 50 days) laboratory incubations where soils were given a single pulse of metal salts. Such additions. however, caused only small changes in the measured variables. It was concluded that such short-term incubations are a poor model of changes in microbial biomass or activity due to chronic exposure to metals. (C) 2002 Elsevier Science Ltd. All fights reserved.
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