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Chemical and spectroscopic analysis of organic matter transformations during composting of pig manure
1999
Hsu JennHung | Lo ShangLien (Graduate Institute of Environmental Engineering, National Taiwan University, 71 Chou-Shan Road, Taipei (Taiwan))
Changes in heavy metal contents in an acidic forest soil affected by depletion of soil organic matter within the time span 1969-93
1999
Egli, M. | Fitze, P. | Oswald, M. (Institute of Geography, University Zurich-Irchel, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland))
Local impacts of a rural coal-burning generating station on lichen abundance in a New England forest
1999
Murphy, K.J. | Alpert, P. | Cosentino, D. (Department of Biology, University of Massachusetts, Amherst, MA 01003-5810 (USA))
Aliphatic hydrocarbons in an oil-contaminated soil : Carbon economy during microbiological decontamination
1999
Wibbe, Michael L. | Blanke, Michael M.
Microbial decontamination of hydrocarbon-polluted soil was paralleled with soil respiration measurements. About 1,500 tons of a loamy top soil were found to be contaminated with approximately 2000 mg/kg of aliphatic hydrocarbons, mainly oleic (C18:1) and linoleic acid (C18:2) found in the vicinity of a linoleum manufacturing and then a car dewaxing plant. The contaminated soil was analysed for dry matter, pH, dehydrogenase activity, electrical conductivity and nutrient content viz. nitrate, phosphorus and potassium, as well as a number of indigenous microbes. The soil was low in salt and nutrients. This paper describes the procedure and measures to decontaminate this bulk soil on site from approx. 2,000 to 500 mg of aliphatic hydrocarbons/kg dry matter by use of a nutrient emulsion, indigenous micro-organisms and aeration over 13 months. This 75% reduction in aliphatic hydrocarbons resulted in a concomitant carbon efflux, measured as soil respiration, and was used to calculate carbon fluxes.
Show more [+] Less [-]Management options for reducing CO(2)-concentrations in the atmosphere by increasing carbon sequestration in the soil
1999
Batjes, N.H.
Carbon and nitrogen in soil and vegetation at sites differing in successional age
1999
Kovel, C.G.F. de | Mierlo, J.E.M. van | Wilms, Y.J.O. | Berendse, F.
