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  • 1
    Electronic Resource
    Electronic Resource
    Effects of fertilization and liming on the chemical soil conditions and element distribution in forest soils (1985)
    Springer
    Plant and soil 87 (1985), S. 405-415 
    Details
    ISSN: 1573-5036
    Keywords: Cations ; Fagus silvatica ; Fertilization ; Humus layer ; Liming ; Major elements ; Norway spruce
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The distribution and storage of major elements in acid soils from a spruce and a beech forest was investigated after fertilization of NH4NO3 and KCl followed by Ca and Mg fertilization by 2 liming applications. All fertilizers were applied on top of the soil without mixing. Most of the added Ca and Mg was detected in the humus layer, a significant part of it still in carbonatic form. The effect of liming on mineral soil pH is very low, and was only observed in the 0–10 cm layer. However, base saturation of the mineral soil increased. The storage of C and N of the humus layer was not affected. N fertilization increased the N storage of the soil only under beech, but was followed by heavy NO3-losses with seepage water under spruce. High leaching rates for K were also found in the spruce stand. The amount of K that was not leached increased the pool of exchangeable K in the deeper soil layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181907
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Interception and uptake of NH4 and NO3 from wet deposition by above-ground parts of young beech (Fagus silvatica L.) trees (1992)
    Springer
    Plant and soil 142 (1992), S. 273-279 
    Details
    ISSN: 1573-5036
    Keywords: Fagus silvatica L. ; wet deposition ; N-uptake ; 15N
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Uptake of NH4 and NO3 by above ground parts of beech trees was studied by spraying young trees with varying concentrations of 15N labeled solutions, different N-forms, and spray regimes over four months. Following treatment, the trees were harvested and analyzed for 15N and major element content. Throughfall was collected and analyzed in addition in order to study the interaction between nitrogen uptake and cation leaching. Significant amounts of N were taken up by the above ground plant parts in all treatments as indicated by 15N analysis of the trees as well as by throughfall measurements. NH4 uptake exceeded the uptake of NO3 if applied in the same concentration. Uptake of N increased linearly with increasing concentration in the spray solution and with spray intensity. The uptaken N was translocated within the plant. The contribution of N from uptake by above ground parts to the total N content of tissues differed and reached a maximum level of 6% in leaves. No effect of above ground N uptake on the total N content of tissues was found. Calculating atmospheric N inputs to forest ecosystems by throughfall measurements may underestimate the actual N input.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00010972
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Effects of fertilization on the fluxes of chemical elements through different forest ecosystems (1983)
    Springer
    Plant and soil 74 (1983), S. 343-358 
    Details
    ISSN: 1573-5036
    Keywords: Acid precipitation ; Beech ; Canopy drip ; Fagus silvatica ; Fertilization ; Forest ecosystem ; Liming ; Picea abies ; Seepage water ; Spruce
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The effects of N−K fertilization and of liming on the fluxes of chemical elements within forest ecosystems were followed in a beech and a spruce stand in the German Solling region. No effect on the chemistry of throughfall was obvious except for K (beech). N added in form of nitrate to the humus layer was transferred rapidly into the mineral soil and was nearly totally lost from the soil of the spruce stand while the beech stand took up considerable amounts of nitrate. No nitrification of the NH4−N added occurred within the humus layer of both stands. The input of K and NH4 caused a strong acidification push within the mineral soil due to the exchange of Al-ions and led to heavy losses mainly of Al and Mn with seepage water. Liming caused increased rates of NO3−N losses under both stands but was followed by a significant reduction of the output of Al, Mn and SO4 under the spruce stand as compared to the unfertilized stand. Only a slight reduction was found under beech. The ratio of Ca/Al in the soil solution was substantially raised after liming.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181352
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    Paper (German National Licenses)
    Fulltext
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