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  • 1
    Monograph available for loan
    Monograph available for loan
    Effects of atmospheric pollutants of forests, wetlands and agricultural ecosystems : [proceedings of the NATO Advanced Research Workshop on Effects of Acidic Deposition on Forests, Wetlands and Agricultural Ecosystems held at Toronto, Canada, May 12-17, 1985] (1987)
    Berlin [u.a.] : Springer
    Details Availability
    Call number: PIK N 076-91-0106
    Type of Medium: Monograph available for loan
    Pages: XXVII, 652 S. : Ill., graph. Darst.
    ISBN: 3540160841 , 0-387-16084-1
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 2
    Electronic Resource
    Electronic Resource
    Reply to comments on "Red herrings in acid rain research" (1985)
    s.l. : American Chemical Society
    Environmental science & technology 19 (1985), S. 646-648 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es00137a015
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  • 3
    Electronic Resource
    Electronic Resource
    Extreme metal and acid tolerance ofEuglena mutabilis and an associated yeast from Smoking Hills, Northwest Territories, and their apparent mutualism (1988)
    Springer
    Microbial ecology 16 (1988), S. 213-231 
    Details
    ISSN: 1432-184X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In isolates ofEuglena mutabilis and an associated yeast from strongly acidic tundra ponds (pH 1.8–2.0) at the Smoking Hills, North West Territories (N.W.T.), and in isolates from acidic ponds in the Yukon, a remarkable degree of tolerance to a number of toxic elements and to very low pH has been found. Growth was used as a measure of tolerance. The tolerances to both low pH and to elevated metal concentrations were markedly enhanced when both organisms were present together. This mutualism occurred even betweenE. mutabilis from one field location and a yeast from another. In every field collection we made ofEuglena, the yeast was also found. The tolerances to metals are 10–100 times higher than the highest reported previously for algae, and include tolerance to some metals not elevated in the ponds from which isolations were made. Reciprocal combinations of algal-yeast partners suggest a generalized benefit of association and an increased benefit for co-selected pairs from a specific site. This algal-yeast association may be a major factor in allowing colonization of these extreme acid habitats, paralleling the cyanobacteria-bacterial associations of extremely alkaline waters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018915
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  • 4
    Electronic Resource
    Electronic Resource
    The Smoking Hills: natural acidification of an aquatic ecosystem (1983)
    [s.l.] : Nature Publishing Group
    Nature 301 (1983), S. 23-27 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Spontaneous burning of bituminous shales at the Smoking Hills in the Canadian Arctic has produced intense acidic fumigations and strongly influenced the local tundra. The burns are of great antiquity. In an area of typically alkaline ponds with pH above 8.0, ponds within the fumigation zone have ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/301023a0
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  • 5
    Electronic Resource
    Electronic Resource
    The Impact of Simulated Acid Rain on Soil Leachate and Xylem Chemistry in a Jack Pine (Pinus Banksiana Lamb.) Stand in Northern Ontario, Canada (1999)
    Springer
    Water, air & soil pollution 111 (1999), S. 89-108 
    Details
    ISSN: 1573-2932
    Keywords: acidification ; base cations ; dendrochemistry ; forest decline ; Jack pine (Pinus banksiana Lamb.)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The impact of simulated acid rain on soil leachate and xylem chemistry in a young Jack pine (Pinus banksiana Lamb.) stand in the boreal forest of northern Ontario was evaluated. Permanent plots (5 × 2 m) were established in 1981 which were sprayed twice monthly with simulated acid rain, adjusted to pH 5.6, 4.0, 3.5, 3.0 or 2.5 with a 2:1 molar ratio of sulphuric (H2SO4) to nitric acid (HNO3) in addition to ambient rainfall. Sprays were applied between June and September for 5 yr. Unsprayed plots were also monitored. The pH of soil leachate collected between 1981–1985 was reduced significantly by the acid sprays and concentrations of sulphate (SO42-), nitrate (NO3-), calcium (Ca), magnesium (Mg), aluminium (Al), manganese (Mn), and zinc (Zn) increased in the A, B and C horizons. The soil recovered rapidly from the spray treatments, although residual effects were found in soil leachate samples collected during 1986–1987, particularly in the C horizon. Trees receiving spray acidified to pH 2.5 had higher concentrations of Ca, Mn, Cd and Rb in tree-rings formed between 1981–1985 compared to trees receiving spray acidified to pH 4.0 or to trees receiving ambient rainfall alone. Some of the changes in soil chemistry resulting from the application of acidic sprays are reflected in the chemistry of Jack pine tree rings and these chemical signals in tree rings may be used as indicators of soil acidification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005007518586
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  • 6
    Electronic Resource
    Electronic Resource
    The Impact of Simulated Acid Rain and Fertilizer Application on a Mature Sugar Maple (Acer Saccharum Marsh.) Forstt in Central Ontario Canada (1999)
    Springer
    Water, air & soil pollution 109 (1999), S. 17-39 
    Details
    ISSN: 1573-2932
    Keywords: acidification ; fertilizer ; forest decline ; sugar maple
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The effects of two year's addition of simulated acid precipitation, with and without added fertilizer, on mycorrhizae, litter decomposition and soil and tree chemistry in a sugar maple (Acer saccharum Marsh.) dominated forest were investigated. The forest floor beneath mature sugar maple trees was irrigated at monthly intervals between May and September with local lake water acidified to pH 3, pH 4 or untreated lakewater of pH 4.9. In addition, a commercial organic slow-release fertilizer (Maple Gro) was added to the soil prior to irrigation with pH 3 spray. Trees to which no experimental spray was applied were also included as controls. Eight trees were used for each of the five treatments. Application of the acid spray alone did not acidify surface soil nor cause visible symptoms of decline in trees. The pH of the soil solution and soil leachate was increased by addition of acidified lakewater. An increase in the concentration of sulphate (SO4 2-), calcium (Ca), and magnesium (Mg) in soil leachate was only recorded in plots irrigated with water acidified to pH 3 + Maple Gro. The initial rate of litter decomposition tended to be higher following application of the acid sprays, although mycorrhizal infection of sugar maple roots was reduced in the pH 3 and pH 4 treatments. Concentrations of zinc (Zn), chromium (Cr) and nickel (Ni) were highest in wood formed during the period irrigated with water acidified to pH 3. Foliar nitrogen (N) concentrations tended to be higher in all irrigated treatments, although there were no differences between treatment in any of the other nutrients measured in foliage after two years of treatment. It is concluded that the application of simulated acid rain under field conditions results in a complex interaction of events which are not reproduced in pot trials and must be fully understood before the impact of acid rain on sugar maple forests can be evaluated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005077230678
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of nickel addition on nitrogen mineralization, nitrification, and nitrogen leaching in some boreal forest soils (1985)
    Springer
    Water, air & soil pollution 24 (1985), S. 153-164 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The effects of Ni additions on nitrification, N mineralization, and N leaching were examined in soils from boreal jack pine (Pinus banksiana Lamb.) forests. The results of a series of incubation experiments suggested that under certain conditions, Ni at 100 μg g−1 soil can stimulate nitrification, and at 500 μg g−1 can stimulate N mineralization. Nitrification rates were very low overall, but were higher in soils from the vicinity of the Sudbury, Ontario Ni-Cu smelters than in uncontaminated soils. The nitrifier populations, estimated by the most probable number method, were extremely low in uncontaminated soils, but also increased following some Ni additions. Increased leaching of NOf3 p was observed in soil columns treated with Ni. Since N tends to be in low supply in boreal forests, and therefore tightly cycled, the observed disruptions caused by Ni inputs could have an effect on forest productivity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00285440
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  • 8
    Electronic Resource
    Electronic Resource
    The influence of mycorrhizal associations on paper birch and jack pine seedlings when exposed to elevated copper, nickel or aluminum (1986)
    Springer
    Water, air & soil pollution 31 (1986), S. 441-448 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Acid deposition may adversely affect northern forest ecosystems by increasing the concentration of metals in the soil solution. This study investigates the effects of ectomycorrhizal fungi on paper birch and jack pine seedlings exposed to elevated Cu, Ni, or Al in sand culture. One of four mycorrhizal fungi,Scleroderma flavidum, was able to reduce Ni toxicity to the birch seedlings. It did this by reducing transport of Ni to the stems. None of the fungi affected Cu toxicity in birch. In separate experiments, jack pine seedlings were exposed to combinations of Al and Ca. Infection withRhizopogon rubescens increased seedling susceptibility to A1. Seedlings inoculated withSuillus tomentosus showed a greater growth stimulation by Ca than uninoculated jack pines. Thus, for both tree species, the mycorrhizal association could alter the response of seedlings to high concentrations of certain metals, although this varied with fungal species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00630862
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  • 9
    Electronic Resource
    Electronic Resource
    Leaching and distribution of nitrogen and nickel in nickel-perturbed jack pine forest microcosms (1985)
    Springer
    Water, air & soil pollution 26 (1985), S. 281-292 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The effects of NiSO4, additions of 100 and 500 μg Ni g −1soil, and of stack-dust from a Ni smelter in Sudbury Ontario, on the accumulation and leaching of N and Ni in a boreal jack pine (Pinus banksiana Lamb.) ecosystem were studied using microcosms in the greenhouse. NiSO4 was found to significantly increase leaching losses of NH4 + and NO3 − at some sampling times. Stack-dust added in a single large dose produced much more dramatic leaching losses of N than did the NiSO4, while gradual additions of stack-dust produced no excess leaching losses relative to controls. At the end of 11 mo there were no significant differences in N concentrations of plants in microcosms receiving different treatments, nor were there differences in inorganic N concentrations in soil. Significant leaching of Ni occurred from all microcosms except those treated weekly with stack-dust. Nickel retained by the microcosms was found to accumulate primarily in the organic soil layers. Nickel concentrations of plants were also increased by the treatments, especially in the moss layer. The 500 μ g g−1 NiSO4 treatment produced the highest increases in plant concentrations of Ni.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00294138
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  • 10
    Electronic Resource
    Electronic Resource
    Responses of five species of conifer seedlings to aluminum stress (1986)
    Springer
    Water, air & soil pollution 31 (1986), S. 283-294 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Seedlings of red, white and black spruce, and white and jack pine were tested for their response to a range of Al concentrations, when grown for 12 to 14 weeks in sand culture in the greenhouse. Nutrients were supplied in solution of pH 3.8 to which Al was supplied at 0, 5, 10, 20, 40, 80 and 160 mg/L. Red and white spruce were inhibited in growth from 5 mg/L upwards, while black spruce was equally inhibited only at concentrations 〉 20 mg/L. In contrast, white pine was stimulated by 5 to 20 mg Al/L and was always more tolerant than the other 4 species at every Al level used. Jack pine was intermediate in its response. There was a positive linear relationship between P and Al accumulation in the shoots of red spruce. This was in contrast to the other 4 species in which P concentrations in the shoot decreased with an increase in Al concentrations. In localization studies on jack pine using a modified hematoxylin stain, Al was shown to accumulate in the root cap of root tips, and in the epidermal and outer cortical walls of older roots. EDAX-SEM analysis confirmed the tissue distribution of Al and revealed its coincidental distribution with. P in roots.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00630844
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