|
|||||
|
|
The effect of nitrogen deposition on the species richness of acid grasslands in Denmark: a comparison with a study performed on a European scale |
|
| Authors: | Damgaard Christian Jensen Lennarth Frohn Lise Marie Borchsenius Finn Nielsen Knud Erik Ejrnæs Rasmus Stevens Carly J |
| Institution: | a Department of Terrestrial Ecology, NERI, Aarhus University, Vejlsøvej 25, 8600 Silkeborg, Denmark b Department of Biological Sciences, Aarhus University, Ny Munkegade Building 1540, 8000 Aarhus C, Denmark c Department of Atmospheric Environment, NERI, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark d Department of Wildlife Ecology and Biodiversity, NERI, Aarhus University, Grenåvej 14, 8410 Rønde, Denmark e Department of Life Sciences, The Open University, Milton Keynes MK7 6AA, UK f Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK |
| Abstract: | The effect of atmospheric nitrogen deposition on the species richness of acid grasslands was investigated by combining data from a large Danish monitoring program with a large European data set, where a significant non-linear negative effect of nitrogen deposition had been demonstrated (Stevens et al., 2010). The nitrogen deposition range in Denmark is relatively small and when only considering the Danish data a non-significant decrease in the species richness with nitrogen deposition was observed. However, when both data sets were combined, then the conclusion of the European survey was further corroborated by the results of the Danish monitoring. Furthermore, by combining the two data sets a more comprehensive picture of the threats to the biodiversity of acid grasslands emerge; i.e., species richness in remnant patches of acid grassland in intensively cultivated agricultural landscapes is under influence not only from nitrogen deposition, but also from current and historical land use. |
| Keywords: | Species richness Nitrogen deposition Biodiversity Acid grassland |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ | |