Share This Author
Atmospheric nitrogen deposition promotes carbon loss from peat bogs
- L. Bragazza, C. Freeman, H. Toberman
- Environmental ScienceProceedings of the National Academy of Sciences
- 19 December 2006
It was found that enhanced decomposition rates for material accumulated under higher atmospheric N supplies resulted in higher carbon dioxide (CO2) emissions and dissolved organic carbon release and increased N deposition poses a serious risk to peatland C sinks.
Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes.
It is demonstrated that longer-term, large-scale changes to leaf litter decomposition will be driven primarily by both direct warming effects and concomitant shifts in plant growth form composition, with a much smaller role for changes in litter quality within species.
Nutritional constraints in ombrotrophic Sphagnum plants under increasing atmospheric nitrogen deposition in Europe.
A critical load of N deposition in Europe of 1 g/m2 year-1 is suggested above which Sphagnum plants change from being N-limited to be K + P colimited, at N : P > 30 and N : K >-3.
Fungi isolated from Antarctic mosses
Within the Antarctic environment, moss is one of the microhabitats richest in microfungi, particularly in psychrophilic indigenous species, and Bryum pseudotriquetrum was the moss richest in fungal species.
Nitrogen concentration and δ15N signature of ombrotrophic Sphagnum mosses at different N deposition levels in Europe
Alteration of the global nitrogen (N) cycle because of human‐enhanced N fixation is a major concern particularly for those ecosystems that are nutrient poor by nature. Because Sphagnum‐dominated…
High nitrogen deposition alters the decomposition of bog plant litter and reduces carbon accumulation
Bogs are globally important sinks of atmospheric carbon (C) due to the accumulation of partially decomposed litter that forms peat. Because bogs receive their nutrients from the atmosphere, the…
Relationships between vegetation patterns and periglacial landforms in northwestern Svalbard
It is concluded that long-term monitoring of relationships between landforms and vegetation represents a suitable tool for assessing the impact of global change on arctic regions.
Climatic modifiers of the response to nitrogen deposition in peat-forming Sphagnum mosses: a meta-analysis.
The results indicate that current rates of N deposition in a warmer environment will strongly inhibit C sequestration by Sphagnum-dominated vegetation.
Are nutrient availability and acidity-alkalinity gradients related in Sphagnum-dominated peatlands?
Abstract Gradients in acidity-alkalinity and nutrient availability were studied in 2 Sphagnum-dominated peatlands on the southeastern Italian Alps. Decreasing concentrations of most mineral elements…
CO2 exchange, photosynthetic pigment composition, and cell ultrastructure of Sphagnum mosses during dehydration and subsequent rehydration
In the field, prolonged drought may alter the interspecific equilibria among coexisting Sphagnum species possessing different degrees of desiccation-tolerance and especially different water-holding abilities.