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  • 1
    Electronic Resource
    Electronic Resource
    Soil solution chemistry of two reclamation sites in the Lusatian lignite mining district as influenced by organic matter application (1999)
    Springer
    Plant and soil 213 (1999), S. 231-240 
    Details
    ISSN: 1573-5036
    Keywords: compost ; fly ash ; lignite ; minesite reclamation ; sewage sludge
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Due to a large reclamation (recultivation) demand in the Lusatian lignite mining district, efficient strategies for the rehabilitation of abandoned mine sites are needed. A field study was conducted for comparing the effects of three different fertilizer treatments (mineral fertilizer, sewage sludge and compost) on soil solution chemistry of both a lignite and pyrite containing spoil as well as a lignite and pyrite free spoil. The lignite and pyrite containing spoil was ameliorated with fly ash from a lignite power plant (17–21 t ha−1 CaO), whereas the lignite and pyrite free site received 7.5 t ha−1 CaO in form of limestone. Fertilizer application rates were: mineral fertilizer 120 N, 100 P and 80 K kg ha−1. 19 t ha−1 sewage sludge and 22 t ha−1 compost were applied. Soil solution was sampled in 20, 60 and 130 cm depth for the period of 16 months. Solution was collected every fortnight and analysed for pH, EC, Ca2+, Mg2+, K+, Na+, Fen+, Aln+, Mn2+, Zn2+, NO3 −, NH4 +, SO4 2−, Cl−, PO4 3−, Cinorg and DOC. Lignite and pyrite containing spoil differed clearly from lignite and pyrite free spoil regarding soil solution concentrations and composition. Acidity (H+) produced by pyrite oxidation led to an enhanced weathering of minerals and, therefore, to at least 10 fold higher soil solution concentrations compared to the lignite and pyrite free site. Major ions in solution of the lignite and pyrite containing site were Ca2+, Mg2+, Fen+, Aln+ and SO4 2−, whereas soil solution at the lignite and pyrite free site was dominated by Ca2+, Mg2+ and SO4 2−. At both sites application of mineral fertilizer led to an immediate but short term (about 1 month) increase of NO3 −, NH4 + and K+ concentrations in soil solution down to a depth of 130 cm. Application of sewage sludge caused a long term (about 16 months) increase of NO3 3 − in the topsoil, whereas NO3 − concentrations in the subsoil were significantly lower compared to the mineral fertilizer plot. Compost application resulted in a strong long-term increase of K+ in soil solution, whereas NO3 − concentrations did not increase. Concentrations of PO4 3− in soil solution depend on solution pH and were not correlated with any treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004421501867
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  • 2
    Electronic Resource
    Electronic Resource
    Ground beetle communities on reclaimed mine spoil: Effects of organic matter application and revegetation (1999)
    Springer
    Plant and soil 213 (1999), S. 117-125 
    Details
    ISSN: 1573-5036
    Keywords: amelioration ; compost ; ground beetles ; mine spoil ; revegetation ; sewage sludge
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract On a study site in the Lusatian lignite mining region (Germany), sandy mine spoil was ameliorated with either sewage sludge, compost or mineral fertilizer. Plots were sown with the grass Secale multicaule and planted with pine seedlings except for a control that was not meliorated and not revegetated. Pitfall catches of ground beetles in 1996/97 yielded high numbers of species and individuals directly after revegetation. The dominant beetles were xerophilic species, known to prefer open sandy sites. Catches in different plots were positively correlated with the amount of vegetation cover and declined as follows: amelioration with sewage sludge 〉 compost 〉 mineral fertilizer 〉 untreated control. Even beetles characteristic of open sandy sites showed a distinct preference for plots with high vegetation cover treated with organic waste. For the dominant species, an attraction to shelter and a more balanced, humid microclimate is assumed. A year-to-year comparison showed an increase in beetles typical of dry grasslands and ruderal sites in the second year, while characteristic species of open sandy sites decreased. Application of organic waste combined with revegetation led to an immediate increase in beetle numbers. In the long term, revegetation would be expected to reduce suitable habitats for endangered ground beetles which prefer open sites with poor sandy soils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004508317091
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  • 3
    Electronic Resource
    Electronic Resource
    Soil solution chemistry and element budgets of three Scots pine ecosystems along a deposition gradient in north-eastern Germany (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1197-1202 
    Details
    ISSN: 1573-2932
    Keywords: Scots pine ; Pinus sylvestris ; deposition ; element budget ; soil solution ; soil chemistry ; alkaline dust ; pH ; acidification ; sulfur release
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Since 1993 we are studying three Scots pine ecosystems along a deposition gradient in north-eastern Germany (formerly GDR). Dramatic reductions of pollutant emissions are reported for the period since 1989/90. S-deposition is high at the sites Roesa and Taura (25 kg S ha−1yr−1) compared to Neuglobsow. Inputs of basic cations, especially Ca, by alkaline dust immissions decrease in the order Roesa 〉 Taura 〉 Neuglobsow. The soil solution data show high concentrations of Ca and SO4 at Roesa decreasing drastically along the deposition gradient. The elevated pH values reflect the impact of alkaline dust deposition particularly in the organic surface layer at Roesa. The site Taura received less base cation deposition and is marked by the lowest pH values throughout the soil profile combined with increased Al concentrations in the solution of the mineral soil. Thus, the composition of the soil solutions clearly reflects the different deposition regimes of the past. The element budgets show that large amounts of base cations, sulfur, and, at Taura, also aluminum are actually released from the soils that were previously stored.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00477144
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  • 4
    Electronic Resource
    Electronic Resource
    Some Effects of N on Ectomycorrhizal Diversity of Scots Pine (Pinus Sylvestris L.) in Northeastern Germany (1999)
    Springer
    Water, air & soil pollution 116 (1999), S. 135-140 
    Details
    ISSN: 1573-2932
    Keywords: mycorrhiza ; Pinus sylvestris ; nitrogen ; diversity ; mycorrhizal frequency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In the last three decades high industrial nitrogen (N) emissions have led to eutrophication of a Scots pine stand (Pinus sylvestris [L.]) near Schwedt characterized by a broad cover of Calamagrostis epigejos [L.] Roth (Poaceae). In comparison to the relatively unimpacted control site (low N site), this high N site showed a remarkably low mycorrhizal frequency (percentage of mycorrhizas on total amount of root tips) with seasonal lows down to 27 %. At the low N site the highest number of mycorrhizal root tips was found in the organic layer. At the high N site the amount of mycorrhizas per soil volume was similar in both organic and mineral soil layers, and also significantly lower when compared to the amount at the low N site. The high N site revealed only nine mycorrhizal morphotypes instead of eighteen found at each sampling date at the control site. 80 % of the coenosis at the high N site were represented by only four morphotypes resulting in a low diversity. The seasonal decrease in the mycorrhizal frequency, the small amount of mycorrhizas and the low diversity suggest that the high N deposition at this site has reduced the ability of the pine trees to withstand natural stresses such as prolonged drought or frost periods. This corresponds well with the 42 % reduction in tree stocking density at the high N site compared to the low N site.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005211011835
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