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  • 1
    Electronic Resource
    Electronic Resource
    Effects of lime and nutrient salts on the microbiological activities of forest soils (1991)
    Springer
    Biology and fertility of soils 11 (1991), S. 261-266 
    Details
    ISSN: 1432-0789
    Keywords: Forest soil ; Fertilization ; Enzymes ; Lime ; Amelioration ; Microbial biomass ; Protease activity ; Phosphatase activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In pot experiments, lime and mineral salts were applied to forest soils taken from three different sites. Microbial biomass, basal respiration, N turnover, and the activities of protease, phosphatase, and CM-cellulase were determined monthly. The fertilized soils showed a great increase in biomass, respiration and N turnover, and some increase in protease activity, whereas phosphatase activity decreased in comparison with the untreated soils. Estimates of the number of colony-forming units of different classes of microorganisms showed an increase in treated soils in most cases. The untreated soils had the lowest biological activity but the maximum application of lime and mineral salts did not automatically lead to maximum activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00335845
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Soil microbial activities and litter decomposition related to altitude (1982)
    Springer
    Plant and soil 65 (1982), S. 87-94 
    Details
    ISSN: 1573-5036
    Keywords: Altitude ; Cell counts ; Cellulase activity ; Cellulolytic bacteria ; CO2-evolution ; Litter decomposition ; Soil enzymes ; Xylanase activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary On a southern slope in the Austrian Central Alps (Hohe Tauern Mountains) at altitudes of 2550 m, 1920 m and 1650 m above sea level, respectively, microbial activities were investigated by measuring the decomposition of litter, the cellulase and xylanase activities, CO2-evolution and the cell counts of viable non differentiated and cellulolytic bacteria. After one year 46% of litter exposed was decomposed at an altitude of 2550 m, 76% at 1920 m and 86% at 1560 m. Investigations with litter bags of different mesh sizes (25 μm and 1000 μm) revealed that small soil animals (〈1 mm) did not significantly influence the decomposition of litter at different altitudes and in different vegetation types. The enzymatic activities and the CO2-evolution of soils decreased with increasing altitude. Plate counts of bacteria from soils at the alpine zone (2550 m) and the tall grass meadow (1650 m) indicated that in some cases the lower metabolic activities caused by bad climatic conditions were compensated by an increase in cell numbers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02376806
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    Paper (German National Licenses)
    Fulltext
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