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The impact of nitrogen deposition on acid grasslands in the Atlantic region of Europe
DUPRE, Cecilia
Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
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Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
DUPRE, Cecilia
Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
DIEKMANN, Martin
Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
< Reduce
Universität Bremen [Deutschland] = University of Bremen [Germany] = Université de Brême [Allemagne]
Language
en
Article de revue
This item was published in
Environmental Pollution. 2011, vol. 159, n° 10, p. 2243-2250
Elsevier
English Abstract
A survey of 153 acid grasslands from the Atlantic biogeographic region of Europe indicates that chronic nitrogen deposition is changing plant species composition and soil and plant-tissue chemistry. Across the deposition ...Read more >
A survey of 153 acid grasslands from the Atlantic biogeographic region of Europe indicates that chronic nitrogen deposition is changing plant species composition and soil and plant-tissue chemistry. Across the deposition gradient (2–44 kg N ha−1 yr−1) grass richness as a proportion of total species richness increased whereas forb richness decreased. Soil C:N ratio increased, but soil extractable nitrate and ammonium concentrations did not show any relationship with nitrogen deposition. The above-ground tissue nitrogen contents of three plant species were examined: Agrostis capillaris (grass), Galium saxatile (forb) and Rhytidiadelphus squarrosus (bryophyte). The tissue nitrogen content of neither vascular plant species showed any relationship with nitrogen deposition, but there was a weak positive relationship between R. squarrosus nitrogen content and nitrogen deposition. None of the species showed strong relationships between above-ground tissue N:P or C:N and nitrogen deposition, indicating that they are not good indicators of deposition rate.Read less <
Keywords
ATMOSPHERIC NITROGEN DEPOSITION
PLANT-TISSUE NITROGEN
SOIL C:N
SOIL PH
PRAIRIE ACIDE
DÉPÔT D'AZOTE
RICHESSE DES ESPÈCES
English Keywords
AGROSTIS CAPILLARIS
GALIUM SAXATILE
RHYTIDIADELPHUS SQUARROSUS
PLANT FUNCTIONAL GROUP
AGROSTIDE
Origin
Hal imported