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Nitrogen deposition increases the acquisition of phosphorus and potassium by heather Calluna vulgaris.
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Increased plant productivity due to nitrogen pollution increases the strength of the global carbon sink, but is implicated in plant diversity loss. However, modelling and experimental studies have suggested that these effects are constrained by availability of other nutrients. In a survey of element
Long-term effects of single potassium fertilization on 137Cs levels in plants and fungi in a boreal forest ecosystem.
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We examined the long-term effects of a single application of potassium (K) fertilizer (100 kg K ha(-1)) in 1992 on (137)Cs uptake in a forest ecosystem in central Sweden. (137)Cs activity concentrations were determined in three low-growing perennial shrubs, heather (Calluna vulgaris), lingonberry
Measurements on retention and transfer characteristics of radiocaesium from poor quality upland soils to heather and from heather to sheep.
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This paper presents results from initial measurements of Cs-134, Cs-137 and K-40 activities made on poor quality upland soils and associated Calluna vulgaris vegetation. Soil-plant radiocaesium and potassium relationships were investigated. Chernobyl caesium shows a higher concentration ratio from
Atmospheric deposition and canopy exchange processes in heathland ecosystems.
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The aims of the present study were to determine canopy exchange processes and to quantify total atmospheric deposition of sulphur and nitrogen in heathland. The study was carried out in dry inland heath vegetation, dominated by Calluna vulgaris, in two nature reserves in the eastern part of the
Interactive effects of nitrogen deposition and fire on plant and soil chemistry in an alpine heathland.
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The response of alpine heathland vegetation and soil chemistry to N additions of 0, 10, 20 and 50 kg N ha(-1) year(-1) in combination with simulated accidental fire (+/-) was monitored over a 5-year period. N addition caused rapid and significant increases in plant tissue N content and N:P and N:K
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